From d047afe61571d6b8fab6ffb896ff48f147cc8f07 Mon Sep 17 00:00:00 2001
From: Xianyi Zhang <xianyi@iscas.ac.cn>
Date: Thu, 15 Mar 2012 01:07:34 +0800
Subject: [PATCH] Set shared library soname in Linux.

---
 Makefile         | 1 +
 Makefile.install | 1 +
 Makefile.system  | 1 +
 exports/Makefile | 2 +-
 4 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index eb9c4ff31..a320112a5 100644
--- a/Makefile
+++ b/Makefile
@@ -83,6 +83,7 @@ shared :
 ifeq ($(OSNAME), Linux)
 	$(MAKE) -C exports so
 	-ln -fs $(LIBSONAME) libopenblas.so
+	-ln -fs $(LIBSONAME) libopenblas.so.$(MAJOR_VERSION)
 endif
 ifeq ($(OSNAME), FreeBSD)
 	$(MAKE) -C exports so
diff --git a/Makefile.install b/Makefile.install
index 2778a491f..dbc28c568 100644
--- a/Makefile.install
+++ b/Makefile.install
@@ -44,6 +44,7 @@ install : 	lib.grd
 ifeq ($(OSNAME), Linux)
 	-cp $(LIBSONAME) $(OPENBLAS_LIBRARY_DIR)
 	-ln -fs $(OPENBLAS_LIBRARY_DIR)/$(LIBSONAME) $(OPENBLAS_LIBRARY_DIR)/libopenblas.so
+	-ln -fs $(OPENBLAS_LIBRARY_DIR)/$(LIBSONAME) $(OPENBLAS_LIBRARY_DIR)/libopenblas.so.$(MAJOR_VERSION)
 endif
 ifeq ($(OSNAME), FreeBSD)
 	-cp $(LIBSONAME) $(OPENBLAS_LIBRARY_DIR)
diff --git a/Makefile.system b/Makefile.system
index 3f5c7b4fa..9f994a716 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -637,6 +637,7 @@ MD5SUM	= md5sum
 AWK	= awk
 
 REVISION = -r$(VERSION)
+MAJOR_VERSION = $(word 1,$(subst ., ,$(VERSION)))
 
 CFLAGS     = $(COMMON_OPT) $(CCOMMON_OPT) -I$(TOPDIR)
 PFLAGS     = $(COMMON_OPT) $(CCOMMON_OPT) -I$(TOPDIR) -DPROFILE $(COMMON_PROF)
diff --git a/exports/Makefile b/exports/Makefile
index 2db6b6daa..28a0882e3 100644
--- a/exports/Makefile
+++ b/exports/Makefile
@@ -100,7 +100,7 @@ so : ../$(LIBSONAME)
 ../$(LIBSONAME) : ../$(LIBNAME) linux.def linktest.c
 	$(CC) $(CFLAGS) -shared -o ../$(LIBSONAME) \
 	-Wl,--whole-archive ../$(LIBNAME) -Wl,--no-whole-archive \
-	-Wl,--retain-symbols-file=linux.def $(EXTRALIB)
+	-Wl,--retain-symbols-file=linux.def -Wl,-soname,libopenblas.so.$(MAJOR_VERSION) $(EXTRALIB)
 	$(CC) $(CFLAGS) -w -o linktest linktest.c ../$(LIBSONAME) $(FEXTRALIB) && echo OK.
 	rm -f linktest