git » libjio » commit 99d4c9e

libjio: Add a soname to the generated .so

author Alberto Bertogli
2009-07-24 23:43:14 UTC
committer Alberto Bertogli
2009-07-24 23:43:14 UTC
parent 2464983140ab2e25fb04a67b3fae169542b44324
libjio: Add a soname to the generated .so

This patch adds soname to the generated shared object, so multiple
incompatible versions of the library can be installed at the same time.

This relies on the compiler using GNU ld, or other linker with a
compatible syntax.

Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar>
libjio/Makefile +13 -3 
diff --git a/libjio/Makefile b/libjio/Makefile
index 157022e..f3b17b4 100644
--- a/libjio/Makefile
+++ b/libjio/Makefile
@@ -48,6 +48,10 @@ else
 endif
 
 
+LIB_VER=0.51
+LIB_SO_VER=0
+
+
 # objects to build
 OBJS = autosync.o checksum.o common.o compat.o trans.o check.o journal.o \
        unix.o ansi.o
@@ -58,7 +62,10 @@ default: all
 all: libjio.so libjio.a libjio.pc jiofsck
 
 libjio.so: $(OBJS)
-	$(NICE_CC) -shared $(ALL_LDFLAGS) $(LIBS) $(OBJS) -o libjio.so
+	$(NICE_CC) -shared $(ALL_LDFLAGS) \
+		-Wl,-soname,libjio.so.$(LIB_SO_VER) \
+		$(LIBS) $(OBJS) -o libjio.so.$(LIB_VER)
+	ln -fs libjio.so.$(LIB_VER) libjio.so
 
 libjio.a: $(OBJS)
 	$(NICE_AR) cr libjio.a $(OBJS)
@@ -75,7 +82,9 @@ jiofsck: jiofsck.o libjio.a
 
 install: all
 	$(INSTALL) -d $(PREFIX)/lib
-	$(INSTALL) -m 0755 libjio.so $(PREFIX)/lib
+	$(INSTALL) -m 0755 libjio.so.$(LIB_VER) $(PREFIX)/lib
+	ln -fs libjio.so.$(LIB_VER) $(PREFIX)/lib/libjio.so
+	ln -fs libjio.so.$(LIB_VER) $(PREFIX)/lib/libjio.so.$(LIB_SO_VER)
 	$(INSTALL) -m 0644 libjio.a $(PREFIX)/lib
 	$(INSTALL) -d $(PREFIX)/include
 	$(INSTALL) -m 0644 libjio.h $(PREFIX)/include
@@ -96,7 +105,8 @@ doxygen:
 	$(MAKE) -C doxygen
 
 clean:
-	rm -f $(OBJS) libjio.a libjio.so libjio.pc jiofsck.o jiofsck
+	rm -f libjio.a libjio.so libjio.so.$(LIB_VER) libjio.pc
+	rm -f $(OBJS) jiofsck.o jiofsck
 	rm -f *.bb *.bbg *.da *.gcov *.gcno *.gcda gmon.out
 	$(MAKE) -C doxygen $@