1 files changed, 11 insertions, 0 deletions

diff --git a/lib/libz/Makefile b/lib/libz/Makefile
index c60252fad5988..48e57ccc2a1aa 100644
--- a/lib/libz/Makefile
+++ b/lib/libz/Makefile
@@ -53,6 +53,17 @@ INCS=		zconf.h zlib.h
 
 .PATH:		${ZLIBSRC}/test
 
+ZLIB_VERSION!=	sed -n '/define.*ZLIB_VERSION/{s,[^0-9.],,gp;q;}' ${ZLIBSRC}/zlib.h
+
+zlib.pc: zlib.pc.in
+	sed -e 's,@prefix@,/usr,g ; \
+		s,@exec_prefix@,$${prefix},g ; \
+		s,@libdir@,$${exec_prefix}/lib,g ; \
+		s,@sharedlibdir@,$${libdir},g ; \
+		s,@includedir@,$${prefix}/include,g ; \
+		s,@VERSION@,${ZLIB_VERSION},g ;' \
+		${.ALLSRC} > ${.TARGET}
+
 minigzip:	all minigzip.o
 	$(CC) -o minigzip minigzip.o -L. -lz