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It has function prototypes and stuff, but not \xHH hex character constants. These do not provoke an error unfortunately, instead are silently treated as an "x". The following induces an error, until -std is added to get proper ANSI mode. Curiously \x00 != x always comes out true, for an array size at least. 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These examples are taken from C99 6.10.3.5. // dprintf is used instead of fprintf to avoid needing to declare // FILE and stderr. #define debug(...) dprintf (2, __VA_ARGS__) #define showlist(...) puts (#__VA_ARGS__) #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__)) static void test_varargs_macros (void) { int x = 1234; int y = 5678; debug ("Flag"); debug ("X = %d\n", x); showlist (The first, second, and third items.); report (x>y, "x is %d but y is %d", x, y); } // Check long long types. #define BIG64 18446744073709551615ull #define BIG32 4294967295ul #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0) #if !BIG_OK #error "your preprocessor is broken" #endif #if BIG_OK #else #error "your preprocessor is broken" #endif static long long int bignum = -9223372036854775807LL; static unsigned long long int ubignum = BIG64; struct incomplete_array { int datasize; double data[]; }; struct named_init { int number; const wchar_t *name; double average; }; typedef const char *ccp; static inline int test_restrict (ccp restrict text) { // See if C++-style comments work. // Iterate through items via the restricted pointer. // Also check for declarations in for loops. for (unsigned int i = 0; *(text+i) != '\''\0'\''; ++i) continue; return 0; } // Check varargs and va_copy. static bool test_varargs (const char *format, ...) { va_list args; va_start (args, format); va_list args_copy; va_copy (args_copy, args); const char *str = ""; int number = 0; float fnumber = 0; while (*format) { switch (*format++) { case '\''s'\'': // string str = va_arg (args_copy, const char *); break; case '\''d'\'': // int number = va_arg (args_copy, int); break; case '\''f'\'': // float fnumber = va_arg (args_copy, double); break; default: break; } } va_end (args_copy); va_end (args); return *str && number && fnumber; } ' # Test code for whether the C compiler supports C99 (body of main). ac_c_conftest_c99_main=' // Check bool. _Bool success = false; success |= (argc != 0); // Check restrict. if (test_restrict ("String literal") == 0) success = true; char *restrict newvar = "Another string"; // Check varargs. success &= test_varargs ("s, d'\'' f .", "string", 65, 34.234); test_varargs_macros (); // Check flexible array members. struct incomplete_array *ia = malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10)); ia->datasize = 10; for (int i = 0; i < ia->datasize; ++i) ia->data[i] = i * 1.234; // Check named initializers. struct named_init ni = { .number = 34, .name = L"Test wide string", .average = 543.34343, }; ni.number = 58; int dynamic_array[ni.number]; dynamic_array[0] = argv[0][0]; dynamic_array[ni.number - 1] = 543; // work around unused variable warnings ok |= (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == '\''x'\'' || dynamic_array[ni.number - 1] != 543); ' # Test code for whether the C compiler supports C11 (global declarations) ac_c_conftest_c11_globals=' // Does the compiler advertise C11 conformance? #if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112L # error "Compiler does not advertise C11 conformance" #endif // Check _Alignas. char _Alignas (double) aligned_as_double; char _Alignas (0) no_special_alignment; extern char aligned_as_int; char _Alignas (0) _Alignas (int) aligned_as_int; // Check _Alignof. enum { int_alignment = _Alignof (int), int_array_alignment = _Alignof (int[100]), char_alignment = _Alignof (char) }; _Static_assert (0 < -_Alignof (int), "_Alignof is signed"); // Check _Noreturn. int _Noreturn does_not_return (void) { for (;;) continue; } // Check _Static_assert. struct test_static_assert { int x; _Static_assert (sizeof (int) <= sizeof (long int), "_Static_assert does not work in struct"); long int y; }; // Check UTF-8 literals. #define u8 syntax error! char const utf8_literal[] = u8"happens to be ASCII" "another string"; // Check duplicate typedefs. typedef long *long_ptr; typedef long int *long_ptr; typedef long_ptr long_ptr; // Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1. struct anonymous { union { struct { int i; int j; }; struct { int k; long int l; } w; }; int m; } v1; ' # Test code for whether the C compiler supports C11 (body of main). ac_c_conftest_c11_main=' _Static_assert ((offsetof (struct anonymous, i) == offsetof (struct anonymous, w.k)), "Anonymous union alignment botch"); v1.i = 2; v1.w.k = 5; ok |= v1.i != 5; ' # Test code for whether the C compiler supports C11 (complete). ac_c_conftest_c11_program="${ac_c_conftest_c89_globals} ${ac_c_conftest_c99_globals} ${ac_c_conftest_c11_globals} int main (int argc, char **argv) { int ok = 0; ${ac_c_conftest_c89_main} ${ac_c_conftest_c99_main} ${ac_c_conftest_c11_main} return ok; } " # Test code for whether the C compiler supports C99 (complete). ac_c_conftest_c99_program="${ac_c_conftest_c89_globals} ${ac_c_conftest_c99_globals} int main (int argc, char **argv) { int ok = 0; ${ac_c_conftest_c89_main} ${ac_c_conftest_c99_main} return ok; } " # Test code for whether the C compiler supports C89 (complete). ac_c_conftest_c89_program="${ac_c_conftest_c89_globals} int main (int argc, char **argv) { int ok = 0; ${ac_c_conftest_c89_main} return ok; } " as_fn_append ac_header_c_list " stdio.h stdio_h HAVE_STDIO_H" as_fn_append ac_header_c_list " stdlib.h stdlib_h HAVE_STDLIB_H" as_fn_append ac_header_c_list " string.h string_h HAVE_STRING_H" as_fn_append ac_header_c_list " inttypes.h inttypes_h HAVE_INTTYPES_H" as_fn_append ac_header_c_list " stdint.h stdint_h HAVE_STDINT_H" as_fn_append ac_header_c_list " strings.h strings_h HAVE_STRINGS_H" as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H" as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H" as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H" # Auxiliary files required by this configure script. ac_aux_files="install-sh config.guess config.sub" # Locations in which to look for auxiliary files. ac_aux_dir_candidates="${srcdir}${PATH_SEPARATOR}${srcdir}/..${PATH_SEPARATOR}${srcdir}/../.." # Search for a directory containing all of the required auxiliary files, # $ac_aux_files, from the $PATH-style list $ac_aux_dir_candidates. # If we don't find one directory that contains all the files we need, # we report the set of missing files from the *first* directory in # $ac_aux_dir_candidates and give up. ac_missing_aux_files="" ac_first_candidate=: printf "%s\n" "$as_me:${as_lineno-$LINENO}: looking for aux files: $ac_aux_files" >&5 as_save_IFS=$IFS; IFS=$PATH_SEPARATOR as_found=false for as_dir in $ac_aux_dir_candidates do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac as_found=: printf "%s\n" "$as_me:${as_lineno-$LINENO}: trying $as_dir" >&5 ac_aux_dir_found=yes ac_install_sh= for ac_aux in $ac_aux_files do # As a special case, if "install-sh" is required, that requirement # can be satisfied by any of "install-sh", "install.sh", or "shtool", # and $ac_install_sh is set appropriately for whichever one is found. if test x"$ac_aux" = x"install-sh" then if test -f "${as_dir}install-sh"; then printf "%s\n" "$as_me:${as_lineno-$LINENO}: ${as_dir}install-sh found" >&5 ac_install_sh="${as_dir}install-sh -c" elif test -f "${as_dir}install.sh"; then printf "%s\n" "$as_me:${as_lineno-$LINENO}: ${as_dir}install.sh found" >&5 ac_install_sh="${as_dir}install.sh -c" elif test -f "${as_dir}shtool"; then printf "%s\n" "$as_me:${as_lineno-$LINENO}: ${as_dir}shtool found" >&5 ac_install_sh="${as_dir}shtool install -c" else ac_aux_dir_found=no if $ac_first_candidate; then ac_missing_aux_files="${ac_missing_aux_files} install-sh" else break fi fi else if test -f "${as_dir}${ac_aux}"; then printf "%s\n" "$as_me:${as_lineno-$LINENO}: ${as_dir}${ac_aux} found" >&5 else ac_aux_dir_found=no if $ac_first_candidate; then ac_missing_aux_files="${ac_missing_aux_files} ${ac_aux}" else break fi fi fi done if test "$ac_aux_dir_found" = yes; then ac_aux_dir="$as_dir" break fi ac_first_candidate=false as_found=false done IFS=$as_save_IFS if $as_found then : else $as_nop as_fn_error $? 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"cannot run $SHELL ${ac_aux_dir}config.sub" "$LINENO" 5 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking build system type" >&5 printf %s "checking build system type... " >&6; } if test ${ac_cv_build+y} then : printf %s "(cached) " >&6 else $as_nop ac_build_alias=$build_alias test "x$ac_build_alias" = x && ac_build_alias=`$SHELL "${ac_aux_dir}config.guess"` test "x$ac_build_alias" = x && as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5 ac_cv_build=`$SHELL "${ac_aux_dir}config.sub" $ac_build_alias` || as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $ac_build_alias failed" "$LINENO" 5 fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5 printf "%s\n" "$ac_cv_build" >&6; } case $ac_cv_build in *-*-*) ;; *) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;; esac build=$ac_cv_build ac_save_IFS=$IFS; IFS='-' set x $ac_cv_build shift build_cpu=$1 build_vendor=$2 shift; shift # Remember, the first character of IFS is used to create $*, # except with old shells: build_os=$* IFS=$ac_save_IFS case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking host system type" >&5 printf %s "checking host system type... " >&6; } if test ${ac_cv_host+y} then : printf %s "(cached) " >&6 else $as_nop if test "x$host_alias" = x; then ac_cv_host=$ac_cv_build else ac_cv_host=`$SHELL "${ac_aux_dir}config.sub" $host_alias` || as_fn_error $? "$SHELL ${ac_aux_dir}config.sub $host_alias failed" "$LINENO" 5 fi fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5 printf "%s\n" "$ac_cv_host" >&6; } case $ac_cv_host in *-*-*) ;; *) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;; esac host=$ac_cv_host ac_save_IFS=$IFS; IFS='-' set x $ac_cv_host shift host_cpu=$1 host_vendor=$2 shift; shift # Remember, the first character of IFS is used to create $*, # except with old shells: host_os=$* IFS=$ac_save_IFS case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac # Check whether --with-gcc was given. if test ${with_gcc+y} then : withval=$with_gcc; fi V_INCLS="" if test "${srcdir}" != "." ; then V_INCLS="-I$srcdir" fi if test "${CFLAGS+set}" = set; then LBL_CFLAGS="$CFLAGS" fi if test -z "$CC" ; then case "$host_os" in bsdi*) # Extract the first word of "shlicc2", so it can be a program name with args. set dummy shlicc2; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... 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" >&6; } if test ${ac_cv_prog_CC+y} then : printf %s "(cached) " >&6 else $as_nop if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then ac_cv_prog_CC="${ac_tool_prefix}cc" printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 printf "%s\n" "$CC" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi fi fi if test -z "$CC"; then # Extract the first word of "cc", so it can be a program name with args. set dummy cc; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... " >&6; } if test ${ac_cv_prog_CC+y} then : printf %s "(cached) " >&6 else $as_nop if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test. else ac_prog_rejected=no as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then if test "$as_dir$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then ac_prog_rejected=yes continue fi ac_cv_prog_CC="cc" printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS if test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_CC shift if test $# != 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set CC to just the basename; use the full file name. shift ac_cv_prog_CC="$as_dir$ac_word${1+' '}$@" fi fi fi fi CC=$ac_cv_prog_CC if test -n "$CC"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 printf "%s\n" "$CC" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi fi if test -z "$CC"; then if test -n "$ac_tool_prefix"; then for ac_prog in cl.exe do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... 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Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char smiInit (); int main (void) { return smiInit (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_cv_lib_smi_smiInit=yes else $as_nop ac_cv_lib_smi_smiInit=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_smi_smiInit" >&5 printf "%s\n" "$ac_cv_lib_smi_smiInit" >&6; } if test "x$ac_cv_lib_smi_smiInit" = xyes then : # # OK, we have libsmi with smiInit. Can we use it? # { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable libsmi" >&5 printf %s "checking whether to enable libsmi... " >&6; } savedlibs="$LIBS" LIBS="-lsmi $LIBS" if test "$cross_compiling" = yes then : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: not when cross-compiling" >&5 printf "%s\n" "not when cross-compiling" >&6; } LIBS="$savedlibs" else $as_nop cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* libsmi available check */ #include #include #include #include int main() { int current, revision, age, n; const int required = 2; if (smiInit("")) exit(1); if (strcmp(SMI_LIBRARY_VERSION, smi_library_version)) exit(2); n = sscanf(smi_library_version, "%d:%d:%d", ¤t, &revision, &age); if (n != 3) exit(3); if (required < current - age || required > current) exit(4); exit(0); } _ACEOF if ac_fn_c_try_run "$LINENO" then : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } printf "%s\n" "#define USE_LIBSMI 1" >>confdefs.h else $as_nop case $? in 1) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no - smiInit failed" >&5 printf "%s\n" "no - smiInit failed" >&6; } ;; 2) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no - header/library version mismatch" >&5 printf "%s\n" "no - header/library version mismatch" >&6; } ;; 3) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no - can't determine library version" >&5 printf "%s\n" "no - can't determine library version" >&6; } ;; 4) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no - too old" >&5 printf "%s\n" "no - too old" >&6; } ;; *) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } ;; esac LIBS="$savedlibs" fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi fi fi fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable the instrument functions code" >&5 printf %s "checking whether to enable the instrument functions code... " >&6; } # Check whether --enable-instrument-functions was given. if test ${enable_instrument_functions+y} then : enableval=$enable_instrument_functions; else $as_nop enableval=no fi case "$enableval" in yes) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for bfd_init in -lbfd" >&5 printf %s "checking for bfd_init in -lbfd... " >&6; } if test ${ac_cv_lib_bfd_bfd_init+y} then : printf %s "(cached) " >&6 else $as_nop ac_check_lib_save_LIBS=$LIBS LIBS="-lbfd $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char bfd_init (); int main (void) { return bfd_init (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_cv_lib_bfd_bfd_init=yes else $as_nop ac_cv_lib_bfd_bfd_init=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bfd_bfd_init" >&5 printf "%s\n" "$ac_cv_lib_bfd_bfd_init" >&6; } if test "x$ac_cv_lib_bfd_bfd_init" = xyes then : true else $as_nop as_fn_error $? "--enable-instrument-functions was given, but test for library libbfd failed. Please install the 'binutils-dev' package." "$LINENO" 5 fi printf "%s\n" "#define ENABLE_INSTRUMENT_FUNCTIONS 1" >>confdefs.h LOCALSRC="$LOCALSRC instrument-functions.c" # Add '-finstrument-functions' instrumentation option to generate # instrumentation calls for entry and exit to functions. # Try to avoid Address Space Layout Randomization (ALSR). CFLAGS="$CFLAGS -O0 -ggdb -finstrument-functions -fno-stack-protector -fno-pic" LDFLAGS="$LDFLAGS -O0 -ggdb -fno-stack-protector -no-pie" LIBS="$LIBS -lbfd" ;; *) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } ;; esac { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to enable the possibly-buggy SMB printer" >&5 printf %s "checking whether to enable the possibly-buggy SMB printer... " >&6; } # Check whether --enable-smb was given. if test ${enable_smb+y} then : enableval=$enable_smb; else $as_nop enableval=no fi case "$enableval" in yes) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } printf "%s\n" "#define ENABLE_SMB 1" >>confdefs.h LOCALSRC="print-smb.c smbutil.c $LOCALSRC" ;; *) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } ;; esac { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to drop root privileges by default" >&5 printf %s "checking whether to drop root privileges by default... " >&6; } # Check whether --with-user was given. if test ${with_user+y} then : withval=$with_user; else $as_nop withval=no fi case "$withval" in #( no) : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } ;; #( ''|yes) : as_fn_error $? "--with-user requires a username" "$LINENO" 5 ;; #( *) : printf "%s\n" "#define WITH_USER \"$withval\"" >>confdefs.h { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes, to user \"$withval\"" >&5 printf "%s\n" "yes, to user \"$withval\"" >&6; } ;; esac { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to chroot" >&5 printf %s "checking whether to chroot... " >&6; } # Check whether --with-chroot was given. if test ${with_chroot+y} then : withval=$with_chroot; else $as_nop withval=no fi case "$withval" in #( no) : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } ;; #( ''|yes) : as_fn_error $? "--with-chroot requires a directory" "$LINENO" 5 ;; #( *) : printf "%s\n" "#define WITH_CHROOT \"$withval\"" >>confdefs.h { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes, to directory \"$withval\"" >&5 printf "%s\n" "yes, to directory \"$withval\"" >&6; } ;; esac # Check whether --with-sandbox-capsicum was given. if test ${with_sandbox_capsicum+y} then : withval=$with_sandbox_capsicum; fi # # Check whether various functions are available. If any are, set # ac_lbl_capsicum_function_seen to yes; if any are not, set # ac_lbl_capsicum_function_not_seen to yes. # # We don't check cap_rights_init(), as it's a macro, wrapping another # function, in at least some versions of FreeBSD, and AC_CHECK_FUNCS() # doesn't handle that. # # All of the ones we check for must be available in order to enable # capsicum sandboxing. # # XXX - do we need to check for all of them, or are there some that, if # present, imply others are present? # if test -z "$with_sandbox_capsicum" || test "$with_sandbox_capsicum" != "no" ; then # # First, make sure we have the required header. # ac_fn_c_check_header_compile "$LINENO" "sys/capsicum.h" "ac_cv_header_sys_capsicum_h" "$ac_includes_default" if test "x$ac_cv_header_sys_capsicum_h" = xyes then : # # We do; now make sure we have the required functions. # for ac_func in cap_enter cap_rights_limit cap_ioctls_limit openat do : as_ac_var=`printf "%s\n" "ac_cv_func_$ac_func" | $as_tr_sh` ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" if eval test \"x\$"$as_ac_var"\" = x"yes" then : cat >>confdefs.h <<_ACEOF #define `printf "%s\n" "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF ac_lbl_capsicum_function_seen=yes else $as_nop ac_lbl_capsicum_function_not_seen=yes fi done fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for cap_init in -lcasper" >&5 printf %s "checking for cap_init in -lcasper... " >&6; } if test ${ac_cv_lib_casper_cap_init+y} then : printf %s "(cached) " >&6 else $as_nop ac_check_lib_save_LIBS=$LIBS LIBS="-lcasper $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char cap_init (); int main (void) { return cap_init (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_cv_lib_casper_cap_init=yes else $as_nop ac_cv_lib_casper_cap_init=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_casper_cap_init" >&5 printf "%s\n" "$ac_cv_lib_casper_cap_init" >&6; } if test "x$ac_cv_lib_casper_cap_init" = xyes then : LIBS="$LIBS -lcasper" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for cap_gethostbyaddr in -lcap_dns" >&5 printf %s "checking for cap_gethostbyaddr in -lcap_dns... " >&6; } if test ${ac_cv_lib_cap_dns_cap_gethostbyaddr+y} then : printf %s "(cached) " >&6 else $as_nop ac_check_lib_save_LIBS=$LIBS LIBS="-lcap_dns $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char cap_gethostbyaddr (); int main (void) { return cap_gethostbyaddr (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_cv_lib_cap_dns_cap_gethostbyaddr=yes else $as_nop ac_cv_lib_cap_dns_cap_gethostbyaddr=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_cap_dns_cap_gethostbyaddr" >&5 printf "%s\n" "$ac_cv_lib_cap_dns_cap_gethostbyaddr" >&6; } if test "x$ac_cv_lib_cap_dns_cap_gethostbyaddr" = xyes then : LIBS="$LIBS -lcap_dns" fi fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to sandbox using capsicum" >&5 printf %s "checking whether to sandbox using capsicum... " >&6; } if test "x$ac_lbl_capsicum_function_seen" = "xyes" -a "x$ac_lbl_capsicum_function_not_seen" != "xyes"; then printf "%s\n" "#define HAVE_CAPSICUM 1" >>confdefs.h { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to sandbox using Casper library" >&5 printf %s "checking whether to sandbox using Casper library... " >&6; } if test "x$ac_cv_lib_casper_cap_init" = "xyes" -a "x$ac_cv_lib_cap_dns_cap_gethostbyaddr" = "xyes"; then printf "%s\n" "#define HAVE_CASPER 1" >>confdefs.h { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi # # We must check this before checking whether to check the OS's IPv6, # support because, on some platforms (such as SunOS 5.x), the test # program requires the extra networking libraries. # # Most operating systems have gethostbyaddr() in the default searched # libraries (i.e. libc): # Some OSes (eg. Solaris) place it in libnsl # Some strange OSes (SINIX) have it in libsocket: { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing gethostbyaddr" >&5 printf %s "checking for library containing gethostbyaddr... " >&6; } if test ${ac_cv_search_gethostbyaddr+y} then : printf %s "(cached) " >&6 else $as_nop ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char gethostbyaddr (); int main (void) { return gethostbyaddr (); ; return 0; } _ACEOF for ac_lib in '' network nsl socket resolv do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO" then : ac_cv_search_gethostbyaddr=$ac_res fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext if test ${ac_cv_search_gethostbyaddr+y} then : break fi done if test ${ac_cv_search_gethostbyaddr+y} then : else $as_nop ac_cv_search_gethostbyaddr=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_gethostbyaddr" >&5 printf "%s\n" "$ac_cv_search_gethostbyaddr" >&6; } ac_res=$ac_cv_search_gethostbyaddr if test "$ac_res" != no then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi # Unfortunately libsocket sometimes depends on libnsl and # AC_SEARCH_LIBS isn't up to the task of handling dependencies like this. if test "$ac_cv_search_gethostbyaddr" = "no" then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyaddr in -lsocket" >&5 printf %s "checking for gethostbyaddr in -lsocket... " >&6; } if test ${ac_cv_lib_socket_gethostbyaddr+y} then : printf %s "(cached) " >&6 else $as_nop ac_check_lib_save_LIBS=$LIBS LIBS="-lsocket -lnsl $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char gethostbyaddr (); int main (void) { return gethostbyaddr (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_cv_lib_socket_gethostbyaddr=yes else $as_nop ac_cv_lib_socket_gethostbyaddr=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_gethostbyaddr" >&5 printf "%s\n" "$ac_cv_lib_socket_gethostbyaddr" >&6; } if test "x$ac_cv_lib_socket_gethostbyaddr" = xyes then : LIBS="-lsocket -lnsl $LIBS" fi fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing socket" >&5 printf %s "checking for library containing socket... " >&6; } if test ${ac_cv_search_socket+y} then : printf %s "(cached) " >&6 else $as_nop ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char socket (); int main (void) { return socket (); ; return 0; } _ACEOF for ac_lib in '' socket do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO" then : ac_cv_search_socket=$ac_res fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext if test ${ac_cv_search_socket+y} then : break fi done if test ${ac_cv_search_socket+y} then : else $as_nop ac_cv_search_socket=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_socket" >&5 printf "%s\n" "$ac_cv_search_socket" >&6; } ac_res=$ac_cv_search_socket if test "$ac_res" != no then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" else $as_nop { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for socket in -lsocket" >&5 printf %s "checking for socket in -lsocket... " >&6; } if test ${ac_cv_lib_socket_socket+y} then : printf %s "(cached) " >&6 else $as_nop ac_check_lib_save_LIBS=$LIBS LIBS="-lsocket -lnsl $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char socket (); int main (void) { return socket (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_cv_lib_socket_socket=yes else $as_nop ac_cv_lib_socket_socket=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_socket" >&5 printf "%s\n" "$ac_cv_lib_socket_socket" >&6; } if test "x$ac_cv_lib_socket_socket" = xyes then : LIBS="-lsocket -lnsl $LIBS" fi fi # DLPI needs putmsg under HPUX so test for -lstr while we're at it { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for library containing putmsg" >&5 printf %s "checking for library containing putmsg... " >&6; } if test ${ac_cv_search_putmsg+y} then : printf %s "(cached) " >&6 else $as_nop ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char putmsg (); int main (void) { return putmsg (); ; return 0; } _ACEOF for ac_lib in '' str do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO" then : ac_cv_search_putmsg=$ac_res fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext if test ${ac_cv_search_putmsg+y} then : break fi done if test ${ac_cv_search_putmsg+y} then : else $as_nop ac_cv_search_putmsg=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_putmsg" >&5 printf "%s\n" "$ac_cv_search_putmsg" >&6; } ac_res=$ac_cv_search_putmsg if test "$ac_res" != no then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi # # Check whether AF_INET6 and struct in6_addr are defined. # If they aren't both defined, we don't have sufficient OS # support for IPv6, so we don't look for IPv6 support libraries, # and we define AF_INET6 and struct in6_addr ourselves. # { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the operating system supports IPv6" >&5 printf %s "checking whether the operating system supports IPv6... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include /* AF_INET6 available check */ #include #ifdef _WIN32 #include #else #include #include #endif #ifdef AF_INET6 void foo(struct in6_addr *addr) { memset(addr, 0, sizeof (struct in6_addr)); } #else #error "AF_INET6 not defined" #endif _ACEOF if ac_fn_c_try_compile "$LINENO" then : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } printf "%s\n" "#define HAVE_OS_IPV6_SUPPORT 1" >>confdefs.h ipv6=yes else $as_nop { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } ipv6=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ipv6type=unknown ipv6lib=none ipv6trylibc=no if test "$ipv6" = "yes"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking ipv6 stack type" >&5 printf %s "checking ipv6 stack type... " >&6; } for i in inria kame linux-glibc linux-libinet6 toshiba v6d zeta; do case $i in inria) ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 printf %s "checking how to run the C preprocessor... 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Now check whether nonexistent headers # can be detected and how. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if ac_fn_c_try_cpp "$LINENO" then : # Broken: success on invalid input. continue else $as_nop # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.i conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.i conftest.err conftest.$ac_ext if $ac_preproc_ok then : break fi done ac_cv_prog_CPP=$CPP fi CPP=$ac_cv_prog_CPP else ac_cv_prog_CPP=$CPP fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 printf "%s\n" "$CPP" >&6; } ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include Syntax error _ACEOF if ac_fn_c_try_cpp "$LINENO" then : else $as_nop # Broken: fails on valid input. continue fi rm -f conftest.err conftest.i conftest.$ac_ext # OK, works on sane cases. 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" >&6; } if "$PKG_CONFIG" libpcap --exists ; then # # Yes, so we can use pkg-config to get configuration # information for libpcap. # { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } pkg_config_usable=yes else # # No, so we can't use pkg-config to get configuration # information for libpcap. # { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } pkg_config_usable=no fi else # # We don't have it, so we obviously can't use it. # pkg_config_usable=no fi if test "$pkg_config_usable" = "yes" ; then # # Found both - use pkg-config to get the include flags for # libpcap and the flags to link with libpcap. # # Please read section 11.6 "Shell Substitutions" # in the autoconf manual before doing anything # to this that involves quoting. Especially note # the statement "There is just no portable way to use # double-quoted strings inside double-quoted back-quoted # expressions (pfew!)." # cflags=`"$PKG_CONFIG" libpcap --cflags` V_INCLS="$cflags $V_INCLS" libpcap=`"$PKG_CONFIG" libpcap --libs` else # # No pkg-config # Look for an installed pcap-config. # if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}pcap-config", so it can be a program name with args. set dummy ${ac_tool_prefix}pcap-config; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... " >&6; } if test ${ac_cv_path_PCAP_CONFIG+y} then : printf %s "(cached) " >&6 else $as_nop case $PCAP_CONFIG in [\\/]* | ?:[\\/]*) ac_cv_path_PCAP_CONFIG="$PCAP_CONFIG" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then ac_cv_path_PCAP_CONFIG="$as_dir$ac_word$ac_exec_ext" printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi PCAP_CONFIG=$ac_cv_path_PCAP_CONFIG if test -n "$PCAP_CONFIG"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PCAP_CONFIG" >&5 printf "%s\n" "$PCAP_CONFIG" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi fi if test -z "$ac_cv_path_PCAP_CONFIG"; then ac_pt_PCAP_CONFIG=$PCAP_CONFIG # Extract the first word of "pcap-config", so it can be a program name with args. set dummy pcap-config; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... " >&6; } if test ${ac_cv_path_ac_pt_PCAP_CONFIG+y} then : printf %s "(cached) " >&6 else $as_nop case $ac_pt_PCAP_CONFIG in [\\/]* | ?:[\\/]*) ac_cv_path_ac_pt_PCAP_CONFIG="$ac_pt_PCAP_CONFIG" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then ac_cv_path_ac_pt_PCAP_CONFIG="$as_dir$ac_word$ac_exec_ext" printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi ac_pt_PCAP_CONFIG=$ac_cv_path_ac_pt_PCAP_CONFIG if test -n "$ac_pt_PCAP_CONFIG"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PCAP_CONFIG" >&5 printf "%s\n" "$ac_pt_PCAP_CONFIG" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi if test "x$ac_pt_PCAP_CONFIG" = x; then PCAP_CONFIG="" else case $cross_compiling:$ac_tool_warned in yes:) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 printf "%s\n" "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac PCAP_CONFIG=$ac_pt_PCAP_CONFIG fi else PCAP_CONFIG="$ac_cv_path_PCAP_CONFIG" fi if test -n "$PCAP_CONFIG" ; then # # Found - use it to get the include flags for # libpcap and the flags to link with libpcap. # # If this is a vendor-supplied pcap-config, which # we define as being "a pcap-config in /usr/bin # or /usr/ccs/bin" (the latter is for Solaris and # Sun/Oracle Studio), there are some issues. Work # around them. # if test \( "$PCAP_CONFIG" = "/usr/bin/pcap-config" \) -o \ \( "$PCAP_CONFIG" = "/usr/ccs/bin/pcap-config" \) ; then # # It's vendor-supplied. # case "$host_os" in darwin*) # # This is macOS or another Darwin-based OS. # # That means that /usr/bin/pcap-config it # may provide -I/usr/local/include with --cflags # and -L/usr/local/lib with --libs, rather than # pointing to the OS-supplied library and # Xcode-supplied headers. Remember that, so we # ignore those values. # _broken_apple_pcap_config=yes # # Furthermore: # # macOS Sonoma's libpcap includes stub versions # of the remote-capture APIs. They are exported # as "weakly linked symbols". # # Xcode 15 offers only a macOS Sonoma SDK, which # has a .tbd file for libpcap that claims it # includes those APIs. (Newer versions of macOS # don't provide the system shared libraries, # they only provide the dyld shared cache # containing those libraries, so the OS provides # SDKs that include a .tbd file to use when # linking.) # # This means that AC_CHECK_FUNCS() will think # that the remote-capture APIs are present, # including pcap_open() and # pcap_findalldevs_ex(). # # However, they are *not* present in macOS # Ventura and earlier, which means that building # on Ventura with Xcode 15 produces executables # that fail to start because one of those APIs # isn't found in the system libpcap. # # Protecting calls to those APIs with # __builtin_available() does not appear to # prevent this, for some unknown reason, and it # doesn't even allow the program to compile with # versions of Xcode prior to Xcode 15, as the # pcap.h file doesn't specify minimum OS # versions for those functions. # # Given all that, and given that the versions of # the remote-capture APIs in Sonoma are stubs # that always fail, there doesn't seem to be any # point in checking for pcap_open() if we're # linking against the Apple libpcap. # # However, if we're *not* linking against the # Apple libpcap, we should check for it, so that # we can use it if it's present. # # We know this is macOS and that we're using # the system-provided pcap-config to find # libpcap, so we know it'll be the system # libpcap, and note that we should not search # for remote-capture APIs. # _dont_check_for_remote_apis=yes ;; solaris*) # # This is Solaris 2 or later, i.e. SunOS 5.x. # # At least on Solaris 11; there's /usr/bin/pcap-config, # which reports -L/usr/lib with --libs, causing # the 32-bit libraries to be found, and there's # /usr/bin/{64bitarch}/pcap-config, where {64bitarch} # is a name for the 64-bit version of the instruction # set, which reports -L /usr/lib/{64bitarch}, causing # the 64-bit libraries to be found. # # So if we're building 64-bit targets, we replace # PCAP_CONFIG with /usr/bin/{64bitarch}; we get # {64bitarch} as the output of "isainfo -n". # # Are we building 32-bit or 64-bit? Get the # size of void *, and check that. # # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5 printf %s "checking size of void *... " >&6; } if test ${ac_cv_sizeof_void_p+y} then : printf %s "(cached) " >&6 else $as_nop if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p" "$ac_includes_default" then : else $as_nop if test "$ac_cv_type_void_p" = yes; then { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (void *) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_void_p=0 fi fi fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5 printf "%s\n" "$ac_cv_sizeof_void_p" >&6; } printf "%s\n" "#define SIZEOF_VOID_P $ac_cv_sizeof_void_p" >>confdefs.h if test ac_cv_sizeof_void_p -eq 8 ; then isainfo_output=`isainfo -n` if test ! -z "$isainfo_output" ; then # # Success - change PCAP_CONFIG. # PCAP_CONFIG=`echo $PCAP_CONFIG | sed "s;/bin/;/bin/$isainfo_output/;"` fi fi ;; esac fi # # Please read section 11.6 "Shell Substitutions" # in the autoconf manual before doing anything # to this that involves quoting. Especially note # the statement "There is just no portable way to use # double-quoted strings inside double-quoted back-quoted # expressions (pfew!)." # cflags=`"$PCAP_CONFIG" --cflags` # # Work around macOS (and probably other Darwin) brokenness, # by not adding /usr/local/include if it's from the broken # Apple pcap-config. # if test "$_broken_apple_pcap_config" = "yes" ; then # # Strip -I/usr/local/include with sed. # cflags=`echo $cflags | sed 's;-I/usr/local/include;;'` fi V_INCLS="$cflags $V_INCLS" libpcap=`"$PCAP_CONFIG" --libs` # # Work around macOS (and probably other Darwin) brokenness, # by not adding /usr/local/lib if it's from the broken # Apple pcap-config. # if test "$_broken_apple_pcap_config" = "yes" ; then # # Strip -L/usr/local/lib with sed. # libpcap=`echo $libpcap | sed 's;-L/usr/local/lib;;'` fi else # # Not found; look for an installed pcap. # { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for main in -lpcap" >&5 printf %s "checking for main in -lpcap... " >&6; } if test ${ac_cv_lib_pcap_main+y} then : printf %s "(cached) " >&6 else $as_nop ac_check_lib_save_LIBS=$LIBS LIBS="-lpcap $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { return main (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_cv_lib_pcap_main=yes else $as_nop ac_cv_lib_pcap_main=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pcap_main" >&5 printf "%s\n" "$ac_cv_lib_pcap_main" >&6; } if test "x$ac_cv_lib_pcap_main" = xyes then : libpcap="-lpcap" fi if test $libpcap = FAIL ; then as_fn_error $? "see the INSTALL.md file for more info" "$LINENO" 5 fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for extraneous pcap header directories" >&5 printf %s "checking for extraneous pcap header directories... " >&6; } if test \( ! -r /usr/local/include/pcap.h \) -a \ \( ! -r /usr/include/pcap.h \); then if test -r /usr/local/include/pcap/pcap.h; then d="/usr/local/include/pcap" elif test -r /usr/include/pcap/pcap.h; then d="/usr/include/pcap" fi fi if test -z "$d" ; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: not found" >&5 printf "%s\n" "not found" >&6; } else V_INCLS="-I$d $V_INCLS" { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found -- -I$d added" >&5 printf "%s\n" "found -- -I$d added" >&6; } fi fi fi else # # We found a local libpcap. Add it to the dependencies for # tcpdump. # V_PCAPDEP=$libpcap # # Look for its pcap-config script. # # Extract the first word of "pcap-config", so it can be a program name with args. set dummy pcap-config; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... " >&6; } if test ${ac_cv_path_PCAP_CONFIG+y} then : printf %s "(cached) " >&6 else $as_nop case $PCAP_CONFIG in [\\/]* | ?:[\\/]*) ac_cv_path_PCAP_CONFIG="$PCAP_CONFIG" # Let the user override the test with a path. ;; *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $local_pcap_dir do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then ac_cv_path_PCAP_CONFIG="$as_dir$ac_word$ac_exec_ext" printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS ;; esac fi PCAP_CONFIG=$ac_cv_path_PCAP_CONFIG if test -n "$PCAP_CONFIG"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $PCAP_CONFIG" >&5 printf "%s\n" "$PCAP_CONFIG" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi if test -n "$PCAP_CONFIG"; then # # We don't want its --cflags or --libs output, because # those presume it's installed. For the C compiler flags, # we add the source directory for the local libpcap, so # we pick up its header files. # # We do, however, want its additional libraries, as required # when linking statically, because it makes calls to # routines in those libraries, so we'll need to link with # them, because we'll be linking statically with it. # # If it supports --static-pcap-only. use that, as we will be # linking with a static libpcap but won't be linking # statically with any of the libraries on which it depends; # those libraries might not even have static versions # installed. # # That means we need to find out the libraries on which # libpcap directly depends, so we can link with them, but we # don't need to link with the libraries on which those # libraries depend as, on all UN*Xes with which I'm # familiar, the libraries on which a shared library depends # are stored in the library and are automatically loaded by # the run-time linker, without the executable having to be # linked with those libraries. (This allows a library to be # changed to depend on more libraries without breaking that # library's ABI.) # # The only way to test for that support is to see if the # script contains the string "static-pcap-only"; we can't # try using that flag and checking for errors, as the # versions of the script that didn't have that flag wouldn't # report or return an error for an unsupported command-line # flag. Those older versions provided, with --static, only # the libraries on which libpcap depends, not the # dependencies of those libraries; the versions with # --static-pcap-only provide all the dependencies with # --static, for the benefit of programs that are completely # statically linked, and provide only the direct # dependencies with --static-pcap-only. # if grep "static-pcap-only" "$PCAP_CONFIG" >/dev/null 2>&1 then static_opt="--static-pcap-only" else static_opt="--static" fi V_INCLS="-I$local_pcap_dir $V_INCLS" additional_libs=`"$PCAP_CONFIG" $static_opt --additional-libs` libpcap="$libpcap $additional_libs" else # # It doesn't have a pcap-config script. # Make sure it has a pcap.h file. # places=`ls $srcdir/.. | sed -e 's,/$,,' -e "s,^,$srcdir/../," | \ $EGREP '/libpcap-[0-9]*.[0-9]*(.[0-9]*)?([ab][0-9]*)?$'` places2=`ls .. | sed -e 's,/$,,' -e "s,^,../," | \ $EGREP '/libpcap-[0-9]*.[0-9]*(.[0-9]*)?([ab][0-9]*)?$'` pcapH=FAIL if test -r $local_pcap_dir/pcap.h; then pcapH=$local_pcap_dir else for dir in $places $srcdir/../libpcap ../libpcap $srcdir/libpcap $places2 ; do if test -r $dir/pcap.h ; then pcapH=$dir fi done fi if test $pcapH = FAIL ; then as_fn_error $? "cannot find pcap.h: see the INSTALL.md file" "$LINENO" 5 fi # # Force the compiler to look for header files in the # directory containing pcap.h. # V_INCLS="-I$pcapH $V_INCLS" fi fi if test -z "$PKG_CONFIG" -a -z "$PCAP_CONFIG"; then # # We don't have pkg-config or pcap-config; find out any additional # link flags we need. (If we have pkg-config or pcap-config, we # assume it tells us what we need.) # case "$host_os" in aix*) # # If libpcap is DLPI-based, we have to use /lib/pse.exp if # present, as we use the STREAMS routines. # # (XXX - true only if we're linking with a static libpcap?) # pseexe="/lib/pse.exp" { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $pseexe" >&5 printf %s "checking for $pseexe... " >&6; } if test -f $pseexe ; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } LIBS="$LIBS -I:$pseexe" fi # # If libpcap is BPF-based, we need "-lodm" and "-lcfg", as # we use them to load the BPF module. # # (XXX - true only if we're linking with a static libpcap?) # LIBS="$LIBS -lodm -lcfg" ;; solaris*) # libdlpi is needed for Solaris 11 and later. { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlpi_walk in -ldlpi" >&5 printf %s "checking for dlpi_walk in -ldlpi... " >&6; } if test ${ac_cv_lib_dlpi_dlpi_walk+y} then : printf %s "(cached) " >&6 else $as_nop ac_check_lib_save_LIBS=$LIBS LIBS="-ldlpi -L/lib $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char dlpi_walk (); int main (void) { return dlpi_walk (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_cv_lib_dlpi_dlpi_walk=yes else $as_nop ac_cv_lib_dlpi_dlpi_walk=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dlpi_dlpi_walk" >&5 printf "%s\n" "$ac_cv_lib_dlpi_dlpi_walk" >&6; } if test "x$ac_cv_lib_dlpi_dlpi_walk" = xyes then : LIBS="$LIBS -ldlpi" LDFLAGS="-L/lib $LDFLAGS" fi ;; esac fi LIBS="$libpcap $LIBS" ac_fn_c_check_func "$LINENO" "pcap_loop" "ac_cv_func_pcap_loop" if test "x$ac_cv_func_pcap_loop" = xyes then : else $as_nop as_fn_error $? " 1. Do you try to build a 32-bit tcpdump with a 64-bit libpcap or vice versa? 2. This is a bug, please follow the guidelines in CONTRIBUTING.md and include the config.log file in your report. If you have downloaded libpcap from tcpdump.org, and built it yourself, please also include the config.log file from the libpcap source directory, the Makefile from the libpcap source directory, and the output of the make process for libpcap, as this could be a problem with the libpcap that was built, and we will not be able to determine why this is happening, and thus will not be able to fix it, without that information, as we have not been able to reproduce this problem ourselves." "$LINENO" 5 fi # # Check for these after AC_LBL_LIBPCAP, so we link with the appropriate # libraries (e.g., "-lsocket -lnsl" on Solaris). # # You are in a twisty little maze of UN*Xes, all different. # Some might not have ether_ntohost(). # Some might have it and declare it in . # Some might have it and declare it in # Some might have it and declare it in . # Some might have it and declare it in . # Some might have it and declare it in . # Some might have it and not declare it in any header file. # # Before you is a C compiler. # for ac_func in ether_ntohost do : ac_fn_c_check_func "$LINENO" "ether_ntohost" "ac_cv_func_ether_ntohost" if test "x$ac_cv_func_ether_ntohost" = xyes then : printf "%s\n" "#define HAVE_ETHER_NTOHOST 1" >>confdefs.h { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for buggy ether_ntohost" >&5 printf %s "checking for buggy ether_ntohost... " >&6; } if test ${ac_cv_buggy_ether_ntohost+y} then : printf %s "(cached) " >&6 else $as_nop if test "$cross_compiling" = yes then : ac_cv_buggy_ether_ntohost="not while cross-compiling" else $as_nop cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #include #include #include #include int main(int argc, char **argv) { u_char ea[6] = { 0xff, 0xff, 0xff, 0xff, 0xff }; char name[MAXHOSTNAMELEN]; ether_ntohost(name, (struct ether_addr *)ea); exit(0); } _ACEOF if ac_fn_c_try_run "$LINENO" then : ac_cv_buggy_ether_ntohost=no else $as_nop ac_cv_buggy_ether_ntohost=yes fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_buggy_ether_ntohost" >&5 printf "%s\n" "$ac_cv_buggy_ether_ntohost" >&6; } if test "$ac_cv_buggy_ether_ntohost" = "no"; then printf "%s\n" "#define USE_ETHER_NTOHOST 1" >>confdefs.h fi fi done if test "$ac_cv_func_ether_ntohost" = yes -a \ "$ac_cv_buggy_ether_ntohost" = "no"; then # # OK, we have ether_ntohost(). Is it declared in ? # # This test fails if we don't have or if we do # but it doesn't declare ether_ntohost(). # { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $CC options needed to detect all undeclared functions" >&5 printf %s "checking for $CC options needed to detect all undeclared functions... " >&6; } if test ${ac_cv_c_undeclared_builtin_options+y} then : printf %s "(cached) " >&6 else $as_nop ac_save_CFLAGS=$CFLAGS ac_cv_c_undeclared_builtin_options='cannot detect' for ac_arg in '' -fno-builtin; do CFLAGS="$ac_save_CFLAGS $ac_arg" # This test program should *not* compile successfully. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { (void) strchr; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO" then : else $as_nop # This test program should compile successfully. # No library function is consistently available on # freestanding implementations, so test against a dummy # declaration. Include always-available headers on the # off chance that they somehow elicit warnings. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #include #include extern void ac_decl (int, char *); int main (void) { (void) ac_decl (0, (char *) 0); (void) ac_decl; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO" then : if test x"$ac_arg" = x then : ac_cv_c_undeclared_builtin_options='none needed' else $as_nop ac_cv_c_undeclared_builtin_options=$ac_arg fi break fi rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext fi rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext done CFLAGS=$ac_save_CFLAGS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_undeclared_builtin_options" >&5 printf "%s\n" "$ac_cv_c_undeclared_builtin_options" >&6; } case $ac_cv_c_undeclared_builtin_options in #( 'cannot detect') : { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "cannot make $CC report undeclared builtins See \`config.log' for more details" "$LINENO" 5; } ;; #( 'none needed') : ac_c_undeclared_builtin_options='' ;; #( *) : ac_c_undeclared_builtin_options=$ac_cv_c_undeclared_builtin_options ;; esac ac_fn_check_decl "$LINENO" "ether_ntohost" "ac_cv_have_decl_ether_ntohost" " #include " "$ac_c_undeclared_builtin_options" "CFLAGS" if test "x$ac_cv_have_decl_ether_ntohost" = xyes then : printf "%s\n" "#define NET_ETHERNET_H_DECLARES_ETHER_NTOHOST /**/" >>confdefs.h fi # # Did that succeed? # if test "$ac_cv_have_decl_ether_ntohost" != yes; then # # No, how about , as on Linux? # # This test fails if we don't have # or if we do but it doesn't declare ether_ntohost(). # # Unset ac_cv_have_decl_ether_ntohost so we don't # treat the previous failure as a cached value and # suppress the next test. # unset ac_cv_have_decl_ether_ntohost ac_fn_check_decl "$LINENO" "ether_ntohost" "ac_cv_have_decl_ether_ntohost" " #include " "$ac_c_undeclared_builtin_options" "CFLAGS" if test "x$ac_cv_have_decl_ether_ntohost" = xyes then : printf "%s\n" "#define NETINET_ETHER_H_DECLARES_ETHER_NTOHOST 1" >>confdefs.h fi fi # # Did that succeed? # if test "$ac_cv_have_decl_ether_ntohost" != yes; then # # No, how about , as on Solaris 10 # and later? # # This test fails if we don't have # or if we do but it doesn't declare ether_ntohost(). # # Unset ac_cv_have_decl_ether_ntohost so we don't # treat the previous failure as a cached value and # suppress the next test. # unset ac_cv_have_decl_ether_ntohost ac_fn_check_decl "$LINENO" "ether_ntohost" "ac_cv_have_decl_ether_ntohost" " #include " "$ac_c_undeclared_builtin_options" "CFLAGS" if test "x$ac_cv_have_decl_ether_ntohost" = xyes then : printf "%s\n" "#define SYS_ETHERNET_H_DECLARES_ETHER_NTOHOST /**/" >>confdefs.h fi fi # # Did that succeed? # if test "$ac_cv_have_decl_ether_ntohost" != yes; then # # No, how about , as in AIX? # # This test fails if we don't have # (if we have ether_ntohost(), we should have # networking, and if we have networking, we should # have ) or if we do but it doesn't # declare ether_ntohost(). # # Unset ac_cv_have_decl_ether_ntohost so we don't # treat the previous failure as a cached value and # suppress the next test. # unset ac_cv_have_decl_ether_ntohost ac_fn_check_decl "$LINENO" "ether_ntohost" "ac_cv_have_decl_ether_ntohost" " #include " "$ac_c_undeclared_builtin_options" "CFLAGS" if test "x$ac_cv_have_decl_ether_ntohost" = xyes then : printf "%s\n" "#define ARPA_INET_H_DECLARES_ETHER_NTOHOST /**/" >>confdefs.h fi fi # # Did that succeed? # if test "$ac_cv_have_decl_ether_ntohost" != yes; then # # No, how about ? # On some platforms, it requires and # , and we always include it with # both of them, so test it with both of them. # # This test fails if we don't have # and the headers we include before it, or if we do but # doesn't declare ether_hostton(). # # Unset ac_cv_have_decl_ether_ntohost so we don't # treat the previous failure as a cached value and # suppress the next test. # unset ac_cv_have_decl_ether_ntohost ac_fn_check_decl "$LINENO" "ether_ntohost" "ac_cv_have_decl_ether_ntohost" " #include #include #include #include #include " "$ac_c_undeclared_builtin_options" "CFLAGS" if test "x$ac_cv_have_decl_ether_ntohost" = xyes then : printf "%s\n" "#define NETINET_IF_ETHER_H_DECLARES_ETHER_NTOHOST /**/" >>confdefs.h fi fi # # After all that, is ether_ntohost() declared? # if test "$ac_cv_have_decl_ether_ntohost" = yes; then # # Yes. # printf "%s\n" "#define HAVE_DECL_ETHER_NTOHOST 1" >>confdefs.h else # # No, we'll have to declare it ourselves. # Do we have "struct ether_addr" if we include # ? # ac_fn_c_check_type "$LINENO" "struct ether_addr" "ac_cv_type_struct_ether_addr" " #include #include #include #include #include " if test "x$ac_cv_type_struct_ether_addr" = xyes then : printf "%s\n" "#define HAVE_STRUCT_ETHER_ADDR 1" >>confdefs.h fi fi fi ac_fn_c_check_func "$LINENO" "pcap_list_datalinks" "ac_cv_func_pcap_list_datalinks" if test "x$ac_cv_func_pcap_list_datalinks" = xyes then : printf "%s\n" "#define HAVE_PCAP_LIST_DATALINKS 1" >>confdefs.h ac_fn_c_check_func "$LINENO" "pcap_free_datalinks" "ac_cv_func_pcap_free_datalinks" if test "x$ac_cv_func_pcap_free_datalinks" = xyes then : printf "%s\n" "#define HAVE_PCAP_FREE_DATALINKS 1" >>confdefs.h fi else $as_nop case " $LIBOBJS " in *" datalinks.$ac_objext "* ) ;; *) LIBOBJS="$LIBOBJS datalinks.$ac_objext" ;; esac fi ac_fn_c_check_func "$LINENO" "pcap_datalink_name_to_val" "ac_cv_func_pcap_datalink_name_to_val" if test "x$ac_cv_func_pcap_datalink_name_to_val" = xyes then : printf "%s\n" "#define HAVE_PCAP_DATALINK_NAME_TO_VAL 1" >>confdefs.h ac_fn_c_check_func "$LINENO" "pcap_datalink_val_to_description" "ac_cv_func_pcap_datalink_val_to_description" if test "x$ac_cv_func_pcap_datalink_val_to_description" = xyes then : printf "%s\n" "#define HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION 1" >>confdefs.h else $as_nop case " $LIBOBJS " in *" dlnames.$ac_objext "* ) ;; *) LIBOBJS="$LIBOBJS dlnames.$ac_objext" ;; esac fi else $as_nop case " $LIBOBJS " in *" dlnames.$ac_objext "* ) ;; *) LIBOBJS="$LIBOBJS dlnames.$ac_objext" ;; esac fi ac_fn_c_check_func "$LINENO" "pcap_set_datalink" "ac_cv_func_pcap_set_datalink" if test "x$ac_cv_func_pcap_set_datalink" = xyes then : printf "%s\n" "#define HAVE_PCAP_SET_DATALINK 1" >>confdefs.h fi ac_fn_c_check_func "$LINENO" "pcap_breakloop" "ac_cv_func_pcap_breakloop" if test "x$ac_cv_func_pcap_breakloop" = xyes then : printf "%s\n" "#define HAVE_PCAP_BREAKLOOP 1" >>confdefs.h fi # # Do we have the new open API? Check for pcap_create, and assume that, # if we do, we also have pcap_activate() and the other new routines # introduced in libpcap 1.0.0. # ac_fn_c_check_func "$LINENO" "pcap_create" "ac_cv_func_pcap_create" if test "x$ac_cv_func_pcap_create" = xyes then : printf "%s\n" "#define HAVE_PCAP_CREATE 1" >>confdefs.h fi if test $ac_cv_func_pcap_create = "yes" ; then # # OK, do we have pcap_set_tstamp_type? If so, assume we have # pcap_list_tstamp_types and pcap_free_tstamp_types as well. # ac_fn_c_check_func "$LINENO" "pcap_set_tstamp_type" "ac_cv_func_pcap_set_tstamp_type" if test "x$ac_cv_func_pcap_set_tstamp_type" = xyes then : printf "%s\n" "#define HAVE_PCAP_SET_TSTAMP_TYPE 1" >>confdefs.h fi # # And do we have pcap_set_tstamp_precision? If so, we assume # we also have pcap_open_offline_with_tstamp_precision. # ac_fn_c_check_func "$LINENO" "pcap_set_tstamp_precision" "ac_cv_func_pcap_set_tstamp_precision" if test "x$ac_cv_func_pcap_set_tstamp_precision" = xyes then : printf "%s\n" "#define HAVE_PCAP_SET_TSTAMP_PRECISION 1" >>confdefs.h fi fi # # Check for a miscellaneous collection of functions which we use # if we have them. # ac_fn_c_check_func "$LINENO" "pcap_findalldevs" "ac_cv_func_pcap_findalldevs" if test "x$ac_cv_func_pcap_findalldevs" = xyes then : printf "%s\n" "#define HAVE_PCAP_FINDALLDEVS 1" >>confdefs.h fi ac_fn_c_check_func "$LINENO" "pcap_dump_flush" "ac_cv_func_pcap_dump_flush" if test "x$ac_cv_func_pcap_dump_flush" = xyes then : printf "%s\n" "#define HAVE_PCAP_DUMP_FLUSH 1" >>confdefs.h fi ac_fn_c_check_func "$LINENO" "pcap_lib_version" "ac_cv_func_pcap_lib_version" if test "x$ac_cv_func_pcap_lib_version" = xyes then : printf "%s\n" "#define HAVE_PCAP_LIB_VERSION 1" >>confdefs.h fi if test $ac_cv_func_pcap_lib_version = "no" ; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pcap_version is defined by libpcap" >&5 printf %s "checking whether pcap_version is defined by libpcap... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { extern char pcap_version[]; return (int)pcap_version; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_lbl_cv_pcap_version_defined=yes else $as_nop ac_lbl_cv_pcap_version_defined=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext if test "$ac_lbl_cv_pcap_version_defined" = yes ; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } printf "%s\n" "#define HAVE_PCAP_VERSION 1" >>confdefs.h else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi fi ac_fn_c_check_func "$LINENO" "pcap_setdirection" "ac_cv_func_pcap_setdirection" if test "x$ac_cv_func_pcap_setdirection" = xyes then : printf "%s\n" "#define HAVE_PCAP_SETDIRECTION 1" >>confdefs.h fi ac_fn_c_check_func "$LINENO" "pcap_set_immediate_mode" "ac_cv_func_pcap_set_immediate_mode" if test "x$ac_cv_func_pcap_set_immediate_mode" = xyes then : printf "%s\n" "#define HAVE_PCAP_SET_IMMEDIATE_MODE 1" >>confdefs.h fi ac_fn_c_check_func "$LINENO" "pcap_dump_ftell64" "ac_cv_func_pcap_dump_ftell64" if test "x$ac_cv_func_pcap_dump_ftell64" = xyes then : printf "%s\n" "#define HAVE_PCAP_DUMP_FTELL64 1" >>confdefs.h fi # # See the comment in AC_LBL_LIBPCAP in aclocal.m4 for the reason # why we don't check for remote-capture APIs if we're building # with the system libpcap on macOS. # if test "$_dont_check_for_remote_apis" != "yes"; then ac_fn_c_check_func "$LINENO" "pcap_open" "ac_cv_func_pcap_open" if test "x$ac_cv_func_pcap_open" = xyes then : printf "%s\n" "#define HAVE_PCAP_OPEN 1" >>confdefs.h fi ac_fn_c_check_func "$LINENO" "pcap_findalldevs_ex" "ac_cv_func_pcap_findalldevs_ex" if test "x$ac_cv_func_pcap_findalldevs_ex" = xyes then : printf "%s\n" "#define HAVE_PCAP_FINDALLDEVS_EX 1" >>confdefs.h fi fi ac_fn_c_check_func "$LINENO" "pcap_dump_ftell" "ac_cv_func_pcap_dump_ftell" if test "x$ac_cv_func_pcap_dump_ftell" = xyes then : printf "%s\n" "#define HAVE_PCAP_DUMP_FTELL 1" >>confdefs.h else $as_nop case " $LIBOBJS " in *" pcap_dump_ftell.$ac_objext "* ) ;; *) LIBOBJS="$LIBOBJS pcap_dump_ftell.$ac_objext" ;; esac fi # # Check for special debugging functions # ac_fn_c_check_func "$LINENO" "pcap_set_parser_debug" "ac_cv_func_pcap_set_parser_debug" if test "x$ac_cv_func_pcap_set_parser_debug" = xyes then : printf "%s\n" "#define HAVE_PCAP_SET_PARSER_DEBUG 1" >>confdefs.h fi if test "$ac_cv_func_pcap_set_parser_debug" = "no" ; then # # OK, we don't have pcap_set_parser_debug() to set the libpcap # filter expression parser debug flag; can we directly set the # flag? { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether pcap_debug is defined by libpcap" >&5 printf %s "checking whether pcap_debug is defined by libpcap... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { extern int pcap_debug; return pcap_debug; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_lbl_cv_pcap_debug_defined=yes else $as_nop ac_lbl_cv_pcap_debug_defined=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext if test "$ac_lbl_cv_pcap_debug_defined" = yes ; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } printf "%s\n" "#define HAVE_PCAP_DEBUG 1" >>confdefs.h else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } # # OK, what about "yydebug"? # { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether yydebug is defined by libpcap" >&5 printf %s "checking whether yydebug is defined by libpcap... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main (void) { extern int yydebug; return yydebug; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_lbl_cv_yydebug_defined=yes else $as_nop ac_lbl_cv_yydebug_defined=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext if test "$ac_lbl_cv_yydebug_defined" = yes ; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } printf "%s\n" "#define HAVE_YYDEBUG 1" >>confdefs.h else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi fi fi ac_fn_c_check_func "$LINENO" "pcap_set_optimizer_debug" "ac_cv_func_pcap_set_optimizer_debug" if test "x$ac_cv_func_pcap_set_optimizer_debug" = xyes then : printf "%s\n" "#define HAVE_PCAP_SET_OPTIMIZER_DEBUG 1" >>confdefs.h fi ac_fn_c_check_func "$LINENO" "bpf_dump" "ac_cv_func_bpf_dump" if test "x$ac_cv_func_bpf_dump" = xyes then : printf "%s\n" "#define HAVE_BPF_DUMP 1" >>confdefs.h else $as_nop case " $LIBOBJS " in *" bpf_dump.$ac_objext "* ) ;; *) LIBOBJS="$LIBOBJS bpf_dump.$ac_objext" ;; esac fi # # Assume V7/BSD convention for man pages (file formats in section 5, # miscellaneous info in section 7). # MAN_FILE_FORMATS=5 MAN_MISC_INFO=7 case "$host_os" in aix*) printf "%s\n" "#define _SUN 1" >>confdefs.h ;; hpux*) # # Use System V conventions for man pages. # MAN_FILE_FORMATS=4 MAN_MISC_INFO=5 ;; irix*) V_GROUP=sys # # Use System V conventions for man pages. # MAN_FILE_FORMATS=4 MAN_MISC_INFO=5 ;; osf*) V_GROUP=system # # Use System V conventions for man pages. # MAN_FILE_FORMATS=4 MAN_MISC_INFO=5 ;; solaris*) # # Use System V conventions for man pages. # MAN_FILE_FORMATS=4 MAN_MISC_INFO=5 ;; esac # # Make sure we have a definition for C99's uintptr_t (regardless of # whether the environment is a C99 environment or not). # ac_fn_c_check_type "$LINENO" "uintptr_t" "ac_cv_type_uintptr_t" "$ac_includes_default" if test "x$ac_cv_type_uintptr_t" = xyes then : printf "%s\n" "#define HAVE_UINTPTR_T 1" >>confdefs.h else $as_nop for ac_type in 'unsigned int' 'unsigned long int' \ 'unsigned long long int'; do cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ $ac_includes_default int main (void) { static int test_array [1 - 2 * !(sizeof (void *) <= sizeof ($ac_type))]; test_array [0] = 0; return test_array [0]; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO" then : printf "%s\n" "#define uintptr_t $ac_type" >>confdefs.h ac_type= fi rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext test -z "$ac_type" && break done fi savedcppflags="$CPPFLAGS" CPPFLAGS="$CPPFLAGS $V_INCLS" # # Check whether we have pcap/pcap-inttypes.h. # If we do, we use that to get the C99 types defined. # ac_fn_c_check_header_compile "$LINENO" "pcap/pcap-inttypes.h" "ac_cv_header_pcap_pcap_inttypes_h" "$ac_includes_default" if test "x$ac_cv_header_pcap_pcap_inttypes_h" = xyes then : printf "%s\n" "#define HAVE_PCAP_PCAP_INTTYPES_H 1" >>confdefs.h fi # # At compile time HAVE_PCAP_FINDALLDEVS depends on HAVE_PCAP_IF_T. # ac_fn_c_check_type "$LINENO" "pcap_if_t" "ac_cv_type_pcap_if_t" "#include " if test "x$ac_cv_type_pcap_if_t" = xyes then : printf "%s\n" "#define HAVE_PCAP_IF_T 1" >>confdefs.h fi CPPFLAGS="$savedcppflags" # # Define the old BSD specified-width types in terms of the C99 types; # we may need them with libpcap include files. # ac_fn_c_check_type "$LINENO" "u_int8_t" "ac_cv_type_u_int8_t" "$ac_includes_default #include " if test "x$ac_cv_type_u_int8_t" = xyes then : else $as_nop printf "%s\n" "#define u_int8_t uint8_t" >>confdefs.h fi ac_fn_c_check_type "$LINENO" "u_int16_t" "ac_cv_type_u_int16_t" "$ac_includes_default #include " if test "x$ac_cv_type_u_int16_t" = xyes then : else $as_nop printf "%s\n" "#define u_int16_t uint16_t" >>confdefs.h fi ac_fn_c_check_type "$LINENO" "u_int32_t" "ac_cv_type_u_int32_t" "$ac_includes_default #include " if test "x$ac_cv_type_u_int32_t" = xyes then : else $as_nop printf "%s\n" "#define u_int32_t uint32_t" >>confdefs.h fi ac_fn_c_check_type "$LINENO" "u_int64_t" "ac_cv_type_u_int64_t" "$ac_includes_default #include " if test "x$ac_cv_type_u_int64_t" = xyes then : else $as_nop printf "%s\n" "#define u_int64_t uint64_t" >>confdefs.h fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. set dummy ${ac_tool_prefix}ranlib; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... " >&6; } if test ${ac_cv_prog_RANLIB+y} then : printf %s "(cached) " >&6 else $as_nop if test -n "$RANLIB"; then ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi RANLIB=$ac_cv_prog_RANLIB if test -n "$RANLIB"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 printf "%s\n" "$RANLIB" >&6; } else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi fi if test -z "$ac_cv_prog_RANLIB"; then ac_ct_RANLIB=$RANLIB # Extract the first word of "ranlib", so it can be a program name with args. set dummy ranlib; ac_word=$2 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 printf %s "checking for $ac_word... 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We do not, for example, # want the default "int main()" that AC_LANG_PROGRAM() generates, # as it will generate a warning with -Wold-style-definition, meaning # that we would treat it as not working, as the test will fail if # *any* error output, including a warning due to the flag we're # testing, is generated; see # # https://www.postgresql.org/message-id/2192993.1591682589%40sss.pgh.pa.us # https://www.postgresql.org/message-id/2192993.1591682589%40sss.pgh.pa.us # # This may, as per those two messages, be fixed in autoconf 2.70, # but we only require 2.69 or newer for now. # cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main(void) { return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO" then : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } CFLAGS="$save_CFLAGS" V_CCOPT="$V_CCOPT -Wwrite-strings" else $as_nop { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } CFLAGS="$save_CFLAGS" fi rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext ac_c_werror_flag="$save_ac_c_werror_flag" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports generating dependencies" >&5 printf %s "checking whether the compiler supports generating dependencies... " >&6; } if test "$GCC" = yes ; then # # GCC, or a compiler deemed to be GCC by AC_PROG_CC (even # though it's not); we assume that, in this case, the flag # would be -M. # ac_lbl_dependency_flag="-M" else # # Not GCC or a compiler deemed to be GCC; what platform is # this? (We're assuming that if the compiler isn't GCC # it's the compiler from the vendor of the OS; that won't # necessarily be true for x86 platforms, where it might be # the Intel C compiler.) # case "$host_os" in irix*|osf*|darwin*) # # MIPS C for IRIX, DEC C, and clang all use -M. # ac_lbl_dependency_flag="-M" ;; solaris*) # # Sun C uses -xM. # ac_lbl_dependency_flag="-xM" ;; hpux*) # # HP's older C compilers don't support this. # HP's newer C compilers support this with # either +M or +Make; the older compilers # interpret +M as something completely # different, so we use +Make so we don't # think it works with the older compilers. # ac_lbl_dependency_flag="+Make" ;; *) # # Not one of the above; assume no support for # generating dependencies. # ac_lbl_dependency_flag="" ;; esac fi # # Is ac_lbl_dependency_flag defined and, if so, does the compiler # complain about it? # # Note: clang doesn't seem to exit with an error status when handed # an unknown non-warning error, even if you pass it # -Werror=unknown-warning-option. However, it always supports # -M, so the fact that this test always succeeds with clang # isn't an issue. # if test ! -z "$ac_lbl_dependency_flag"; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main(void) { return 0; } _ACEOF if { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: eval \"\$CC \$ac_lbl_dependency_flag conftest.c >/dev/null 2>&1\""; } >&5 (eval "$CC $ac_lbl_dependency_flag conftest.c >/dev/null 2>&1") 2>&5 ac_status=$? printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes, with $ac_lbl_dependency_flag" >&5 printf "%s\n" "yes, with $ac_lbl_dependency_flag" >&6; } DEPENDENCY_CFLAG="$ac_lbl_dependency_flag" MKDEP='${top_srcdir}/mkdep' else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } # # We can't run mkdep, so have "make depend" do # nothing. # MKDEP=: fi rm -rf conftest* else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } # # We can't run mkdep, so have "make depend" do # nothing. # MKDEP=: fi # # We used to set -n32 for IRIX 6 when not using GCC (presumed # to mean that we're using MIPS C or MIPSpro C); it specified # the "new" faster 32-bit ABI, introduced in IRIX 6.2. I'm # not sure why that would be something to do *only* with a # .devel file; why should the ABI for which we produce code # depend on .devel? # os=`echo $host_os | sed -e 's/\([0-9][0-9]*\)[^0-9].*$/\1/'` name="lbl/os-$os.h" if test -f $name ; then ln -s $name os-proto.h printf "%s\n" "#define HAVE_OS_PROTO_H 1" >>confdefs.h else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: can't find $name" >&5 printf "%s\n" "$as_me: WARNING: can't find $name" >&2;} fi fi # Check for OpenSSL/libressl libcrypto { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to use OpenSSL/libressl libcrypto" >&5 printf %s "checking whether to use OpenSSL/libressl libcrypto... " >&6; } # Specify location for both includes and libraries. want_libcrypto=ifavailable # Check whether --with-crypto was given. if test ${with_crypto+y} then : withval=$with_crypto; if test $withval = no then # User doesn't want to link with libcrypto. want_libcrypto=no { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } elif test $withval = yes then # User wants to link with libcrypto but hasn't specified # a directory. want_libcrypto=yes { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } else # User wants to link with libcrypto and has specified # a directory, so use the provided value. want_libcrypto=yes libcrypto_root=$withval { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes, using the version installed in $withval" >&5 printf "%s\n" "yes, using the version installed in $withval" >&6; } fi else $as_nop # # Use libcrypto if it's present, otherwise don't; no directory # was specified. # want_libcrypto=ifavailable { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes, if available" >&5 printf "%s\n" "yes, if available" >&6; } fi if test "$want_libcrypto" != "no"; then # # Were we told where to look for libcrypto? # if test -z "$libcrypto_root"; then # # No. # # First, try looking for it with pkg-config, if we have it. # # Homebrew's pkg-config does not, by default, look for # pkg-config files for packages it has installed. # Furthermore, at least for OpenSSL, they appear to be # dumped in package-specific directories whose paths are # not only package-specific but package-version-specific. # # So the only way to find openssl is to get the value of # PKG_CONFIG_PATH from "brew --env openssl" and add that # to PKG_CONFIG_PATH. (No, we can't just assume it's under # /usr/local; Homebrew have conveniently chosen to put it # under /opt/homebrew on ARM.) # # That's the nice thing about Homebrew - it makes things easier! # Thanks! # save_PKG_CONFIG_PATH="$PKG_CONFIG_PATH" if test -n "$BREW"; then openssl_pkgconfig_dir=`$BREW --env --plain openssl | sed -n 's/PKG_CONFIG_PATH: //p'` PKG_CONFIG_PATH="$openssl_pkgconfig_dir:$PKG_CONFIG_PATH" fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for libcrypto with pkg-config" >&5 printf %s "checking for libcrypto with pkg-config... " >&6; } if test -n "$PKG_CONFIG"; then if { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libcrypto\""; } >&5 ($PKG_CONFIG --exists --print-errors "libcrypto") 2>&5 ac_status=$? printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then # # The package was found, so try to get its C flags and # libraries. # { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: found" >&5 printf "%s\n" "found" >&6; } if test ! -n "$LIBCRYPTO_CFLAGS"; then LIBCRYPTO_CFLAGS=`$PKG_CONFIG --cflags "libcrypto" 2>/dev/null` if test "x$?" != "x0"; then # # That failed - report an error. # Re-run the command, telling pkg-config to print an error # message, capture the error message, and report it. # This causes the configuration script to fail, as it means # the script is almost certainly doing something wrong. # if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi if test $_pkg_short_errors_supported = yes; then _pkg_error_string=`$PKG_CONFIG --short-errors --print-errors --cflags "libcrypto" 2>&1` else _pkg_error_string=`$PKG_CONFIG --print-errors --cflags "libcrypto" 2>&1` fi as_fn_error $? "$PKG_CONFIG --cflags \"libcrypto\" failed: $_pkg_error_string" "$LINENO" 5 fi fi if test ! -n "$LIBCRYPTO_LIBS"; then LIBCRYPTO_LIBS=`$PKG_CONFIG --libs "libcrypto" 2>/dev/null` if test "x$?" != "x0"; then # # That failed - report an error. # Re-run the command, telling pkg-config to print an error # message, capture the error message, and report it. # This causes the configuration script to fail, as it means # the script is almost certainly doing something wrong. # if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi if test $_pkg_short_errors_supported = yes; then _pkg_error_string=`$PKG_CONFIG --short-errors --print-errors --libs "libcrypto" 2>&1` else _pkg_error_string=`$PKG_CONFIG --print-errors --libs "libcrypto" 2>&1` fi as_fn_error $? "$PKG_CONFIG --libs \"libcrypto\" failed: $_pkg_error_string" "$LINENO" 5 fi fi if test ! -n "$LIBCRYPTO_LIBS_STATIC"; then LIBCRYPTO_LIBS_STATIC=`$PKG_CONFIG --libs --static "libcrypto" 2>/dev/null` if test "x$?" != "x0"; then # # That failed - report an error. # Re-run the command, telling pkg-config to print an error # message, capture the error message, and report it. # This causes the configuration script to fail, as it means # the script is almost certainly doing something wrong. # if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi if test $_pkg_short_errors_supported = yes; then _pkg_error_string=`$PKG_CONFIG --short-errors --print-errors --libs --static "libcrypto" 2>&1` else _pkg_error_string=`$PKG_CONFIG --print-errors --libs --static "libcrypto" 2>&1` fi as_fn_error $? "$PKG_CONFIG --libs --static \"libcrypto\" failed: $_pkg_error_string" "$LINENO" 5 fi fi # # We found OpenSSL/libressl libcrypto. # HAVE_LIBCRYPTO=yes else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: not found" >&5 printf "%s\n" "not found" >&6; } : fi else # No pkg-config, so obviously not found with pkg-config. { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: pkg-config not found" >&5 printf "%s\n" "pkg-config not found" >&6; } : fi PKG_CONFIG_PATH="$save_PKG_CONFIG_PATH" # # If it wasn't found, and we have Homebrew installed, see # if it's in Homebrew. # if test "x$HAVE_LIBCRYPTO" != "xyes" -a -n "$BREW"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for openssl in Homebrew" >&5 printf %s "checking for openssl in Homebrew... " >&6; } # # The brew man page lies when it speaks of # $BREW --prefix --installed # outputting nothing. In Homebrew 3.3.16, # it produces output regardless of whether # the formula is installed or not, so we # send the standard output and error to # the bit bucket. # # libcrypto isn't a formula, openssl is a formula. # if $BREW --prefix --installed openssl >/dev/null 2>&1; then # # Yes. Get the include directory and library # directory. (No, we can't just assume it's # under /usr/local; Homebrew have conveniently # chosen to put it under /opt/homebrew on ARM.) # { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } HAVE_LIBCRYPTO=yes openssl_path=`$BREW --prefix openssl` LIBCRYPTO_CFLAGS="-I$openssl_path/include" LIBCRYPTO_LIBS="-L$openssl_path/lib -lcrypto" else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi fi # # If it wasn't found, and /usr/local/include and /usr/local/lib # exist, check if it's in /usr/local. (We check whether they # exist because, if they don't exist, the compiler will warn # about that and then ignore the argument, so they test # using just the system header files and libraries.) # # We include the standard include file to 1) make sure that # it's installed (if it's just a shared library for the # benefit of existing programs, that's not useful) and 2) # because SSL_library_init() is a library routine in some # versions and a #defined wrapper around OPENSSL_init_ssl() # in others. # if test "x$HAVE_LIBCRYPTO" != "xyes" -a -d "/usr/local/include" -a -d "/usr/local/lib"; then save_CFLAGS="$CFLAGS" save_LIBS="$LIBS" save_LDFLAGS="$LDFLAGS" CFLAGS="$CFLAGS -I/usr/local/include" LIBS="$LIBS -L/usr/local/lib -lcrypto" { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we have an OpenSSL/libressl libcrypto in /usr/local that we can use" >&5 printf %s "checking whether we have an OpenSSL/libressl libcrypto in /usr/local that we can use... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main (void) { EVP_CIPHER_CTX_block_size((EVP_CIPHER_CTX *)0); return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } HAVE_LIBCRYPTO=yes LIBCRYPTO_CFLAGS="-I/usr/local/include" LIBCRYPTO_LIBS="-L/usr/local/lib -lcrypto" else $as_nop { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext CFLAGS="$save_CFLAGS" LIBS="$save_LIBS" LDFLAGS="$save_LDFLAGS" fi # # If it wasn't found, check if it's a system library. # # We include the standard include file to 1) make sure that # it's installed (if it's just a shared library for the # benefit of existing programs, that's not useful) and 2) # make sure this isn't a newer macOS that provides libcrypto # as a shared library but doesn't provide headers - Apple, # bless their pointy little heads, apparently ship libcrypto # as a library, but not the header files, in El Capitan and # later, probably because they don't want you writing nasty # portable code that could run on other UN*Xes, they want you # writing code that uses their Shiny New Crypto Library and # that thus only runs on macOS. # if test "x$HAVE_LIBCRYPTO" != "xyes"; then save_CFLAGS="$CFLAGS" save_LIBS="$LIBS" save_LDFLAGS="$LDFLAGS" LIBS="$LIBS -lcrypto" { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we have a system OpenSSL/libressl that we can use" >&5 printf %s "checking whether we have a system OpenSSL/libressl that we can use... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main (void) { EVP_CIPHER_CTX_block_size((EVP_CIPHER_CTX *)0); return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } HAVE_LIBCRYPTO=yes LIBCRYPTO_LIBS="-lcrypto" else $as_nop { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext CFLAGS="$save_CFLAGS" LIBS="$save_LIBS" LDFLAGS="$save_LDFLAGS" fi else # # Yes. # # Look for it there. # save_CFLAGS="$CFLAGS" save_LIBS="$LIBS" save_LDFLAGS="$LDFLAGS" CFLAGS="$CFLAGS -I$libcrypto_root/include" LIBS="$LIBS -L$libcrypto_root/lib -lcrypto" { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether we have a system OpenSSL/libressl that we can use" >&5 printf %s "checking whether we have a system OpenSSL/libressl that we can use... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main (void) { EVP_CIPHER_CTX_block_size((EVP_CIPHER_CTX *)0); return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } HAVE_LIBCRYPTO=yes LIBCRYPTO_CFLAGS="-I$libcrypto_root/include" LIBCRYPTO_LIBS="-L$libcrypto_root/lib -lcrypto" else $as_nop { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext CFLAGS="$save_CFLAGS" LIBS="$save_LIBS" LDFLAGS="$save_LDFLAGS" fi # # OK, did we find it? # if test "x$HAVE_LIBCRYPTO" = "xyes"; then printf "%s\n" "#define HAVE_LIBCRYPTO 1" >>confdefs.h # # Put the subdirectories of the libcrypto root directory # at the end of the header and library search path, to # make sure they come after any -I or -L flags for # a local libpcap - those must take precedence of any # directory that might contain an installed version of # libpcap. # V_INCLS="$V_INCLS $LIBCRYPTO_CFLAGS" LIBS="$LIBS $LIBCRYPTO_LIBS" # # OK, then: # # 1) do we have EVP_CIPHER_CTX_new? # If so, we use it to allocate an EVP_CIPHER_CTX, as # EVP_CIPHER_CTX may be opaque; otherwise, we allocate it # ourselves. # # 2) do we have EVP_DecryptInit_ex()? # If so, we use it, because we need to be able to make # two "initialize the cipher" calls, one with the cipher # and key, and one with the IV, and, as of OpenSSL 1.1, # You Can't Do That with EVP_DecryptInit(), because a # call to EVP_DecryptInit() will unconditionally clear # the context, and if you don't supply a cipher, it'll # clear the cipher, rendering the context unusable and # causing a crash. # ac_fn_c_check_func "$LINENO" "EVP_CIPHER_CTX_new" "ac_cv_func_EVP_CIPHER_CTX_new" if test "x$ac_cv_func_EVP_CIPHER_CTX_new" = xyes then : printf "%s\n" "#define HAVE_EVP_CIPHER_CTX_NEW 1" >>confdefs.h fi ac_fn_c_check_func "$LINENO" "EVP_DecryptInit_ex" "ac_cv_func_EVP_DecryptInit_ex" if test "x$ac_cv_func_EVP_DecryptInit_ex" = xyes then : printf "%s\n" "#define HAVE_EVP_DECRYPTINIT_EX 1" >>confdefs.h fi else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: OpenSSL/libressl libcrypto not found" >&5 printf "%s\n" "$as_me: OpenSSL/libressl libcrypto not found" >&6;} fi fi # Check for libcap-ng { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether to use libcap-ng" >&5 printf %s "checking whether to use libcap-ng... " >&6; } # Specify location for both includes and libraries. want_libcap_ng=ifavailable # Check whether --with-cap_ng was given. if test ${with_cap_ng+y} then : withval=$with_cap_ng; if test $withval = no then want_libcap_ng=no { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5 printf "%s\n" "no" >&6; } elif test $withval = yes then want_libcap_ng=yes { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5 printf "%s\n" "yes" >&6; } fi else $as_nop # # Use libcap-ng if it's present, otherwise don't. # want_libcap_ng=ifavailable { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes, if available" >&5 printf "%s\n" "yes, if available" >&6; } fi if test "$want_libcap_ng" != "no"; then { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for capng_change_id in -lcap-ng" >&5 printf %s "checking for capng_change_id in -lcap-ng... " >&6; } if test ${ac_cv_lib_cap_ng_capng_change_id+y} then : printf %s "(cached) " >&6 else $as_nop ac_check_lib_save_LIBS=$LIBS LIBS="-lcap-ng $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ char capng_change_id (); int main (void) { return capng_change_id (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO" then : ac_cv_lib_cap_ng_capng_change_id=yes else $as_nop ac_cv_lib_cap_ng_capng_change_id=no fi rm -f core conftest.err conftest.$ac_objext conftest.beam \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_cap_ng_capng_change_id" >&5 printf "%s\n" "$ac_cv_lib_cap_ng_capng_change_id" >&6; } if test "x$ac_cv_lib_cap_ng_capng_change_id" = xyes then : printf "%s\n" "#define HAVE_LIBCAP_NG 1" >>confdefs.h LIBS="-lcap-ng $LIBS" fi ac_fn_c_check_header_compile "$LINENO" "cap-ng.h" "ac_cv_header_cap_ng_h" "$ac_includes_default" if test "x$ac_cv_header_cap_ng_h" = xyes then : printf "%s\n" "#define HAVE_CAP_NG_H 1" >>confdefs.h fi fi if test "$missing_includes" = "yes"; then CPPFLAGS="$CPPFLAGS -I$srcdir/missing" V_INCLS="$V_INCLS -I$srcdir/missing" fi # Find a good install program. We prefer a C program (faster), # so one script is as good as another. But avoid the broken or # incompatible versions: # SysV /etc/install, /usr/sbin/install # SunOS /usr/etc/install # IRIX /sbin/install # AIX /bin/install # AmigaOS /C/install, which installs bootblocks on floppy discs # AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag # AFS /usr/afsws/bin/install, which mishandles nonexistent args # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" # OS/2's system install, which has a completely different semantic # ./install, which can be erroneously created by make from ./install.sh. # Reject install programs that cannot install multiple files. { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5 printf %s "checking for a BSD-compatible install... " >&6; } if test -z "$INSTALL"; then if test ${ac_cv_path_install+y} then : printf %s "(cached) " >&6 else $as_nop as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS case $as_dir in #((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; esac # Account for fact that we put trailing slashes in our PATH walk. case $as_dir in #(( ./ | /[cC]/* | \ /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \ /usr/ucb/* ) ;; *) # OSF1 and SCO ODT 3.0 have their own names for install. # Don't use installbsd from OSF since it installs stuff as root # by default. for ac_prog in ginstall scoinst install; do for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir$ac_prog$ac_exec_ext"; then if test $ac_prog = install && grep dspmsg "$as_dir$ac_prog$ac_exec_ext" >/dev/null 2>&1; then # AIX install. 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