@@ -83,12 +83,18 @@
 	ZLIBDIR="$(cd "${OTHERPKGSDIR}/zlib/inst" 2>/dev/null && pwd)"
 	export ZLIBDIR
 	if [ -n "${ZLIBDIR}" -a -f "${ZLIBDIR}/lib/libz.a" ]; then
 		EXTRA_OBJS="${EXTRA_OBJS} ${ZLIBDIR}/lib/libz.a"
 
+		### Add lib directory for zlib
 		LDFLAGS="${LDFLAGS} -L${ZLIBDIR}/lib"
 		export LDFLAGS
+
+		### Add include directory for zlib
+		CFLAGS="${CFLAGS} -I${ZLIBDIR}/include"
+		CPPFLAGS="${CPPFLAGS} -I${ZLIBDIR}/include"
+		export CFLAGS CPPFLAGS
 	fi
 
 	## Tk Resources (needed for Win32 support)
 	TKDIR="$(cd "${OTHERPKGSDIR}/tk/inst" && pwd)"
 	TKRSRC="${TKDIR}/lib/tkbase.res.o"