This patch fixes shared-lib build.

James 2015.

--- highlight-3.20/src/makefile	2014-11-27 02:51:32.000000000 +0700
+++ highlight-3.20-new/src/makefile	2015-01-27 17:21:06.484547337 +0700
@@ -15,7 +15,7 @@
 CXX=c++
 
 # Added -qt4 because of Arch Linux Qt5 migration
-QMAKE=qmake-qt4
+QMAKE=qmake
 
 CFLAGS:=-Wall -O2 ${CFLAGS} -DNDEBUG
 #CFLAGS:=-ggdb ${CFLAGS}
@@ -103,7 +103,7 @@
 	${AR} ${ARFLAGS} libhighlight.a ${CORE_OBJECTS} ${DILU_OBJECTS}
 
 lib-shared libhighlight.so.1.0: ${CORE_OBJECTS}
-	ld -shared -soname libhighlight.so.1 -o libhighlight.so.${SO_VERSION} -lc ${CORE_OBJECTS}
+	g++ -shared -Wl,-soname,libhighlight.so.1 -o libhighlight.so.${SO_VERSION} -Wl,--whole-archive ${CORE_OBJECTS} -Wl,--no-whole-archive
 
 gui-qt: highlight-gui