From: Theodore Ts'o <tytso@mit.edu>
Date: Sat, 4 Aug 2012 20:56:55 +0000 (-0400)
Subject: Put ELF_OTHER_LIBS in the right place for the linker
X-Git-Tag: v1.42.6~20
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d5aa6a82b37a0e78d8882601e6ad9da9d9dcb4da;p=thirdparty%2Fe2fsprogs.git

Put ELF_OTHER_LIBS in the right place for the linker

Commit a7c17431b9 attempted to fix a problem where the system
libraries might get used instead of local libraries for things like
-lcom_err.  It tried to accomplish this by moving $(ELF_OTHER_LIBS) to
before $(LDFLAGS).

Unfortunately, this was the wrong fix; $(ELF_OTHER_LIBS) *MUST* be
after the object files, or the linker might not pull in the necessary
library and not include it into the DT_NEEDED section of the shared
library.  The proper fix is to add a -L$(LIB) before $(LDFLAGS), and
then remove the -L option from all of the ELF_OTHER_LIBS definitions
in the library Makefiles.

Addresses-Sourceforge-Bug: #3554345

Cc: Olivier Blin <olivier.blin@softathome.com>
Reported-by:  Mike Frysinger <vapier@gentoo.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

diff --git a/lib/Makefile.elf-lib b/lib/Makefile.elf-lib
index c66281c80..78479d31a 100644
--- a/lib/Makefile.elf-lib
+++ b/lib/Makefile.elf-lib
@@ -24,8 +24,9 @@ image:		$(ELF_LIB)
 
 $(ELF_LIB): $(OBJS)
 	$(E) "	GEN_ELF_SOLIB $(ELF_LIB)"
-	$(Q) (cd elfshared; $(CC) --shared -o $(ELF_LIB) $(ELF_OTHER_LIBS) \
-		$(LDFLAGS) -Wl,-soname,$(ELF_SONAME) $(OBJS))
+	$(Q) (cd elfshared; $(CC) --shared -o $(ELF_LIB) \
+		-L$(top_builddir)/../lib $(LDFLAGS) \
+		-Wl,-soname,$(ELF_SONAME) $(OBJS) $(ELF_OTHER_LIBS))
 	$(Q) $(MV) elfshared/$(ELF_LIB) .
 	$(Q) $(RM) -f ../$(ELF_LIB) ../$(ELF_IMAGE).so ../$(ELF_SONAME)
 	$(Q) (cd ..; $(LN) $(LINK_BUILD_FLAGS) \
diff --git a/lib/Makefile.solaris-lib b/lib/Makefile.solaris-lib
index 66f2b4c88..5990be8a4 100644
--- a/lib/Makefile.solaris-lib
+++ b/lib/Makefile.solaris-lib
@@ -24,8 +24,9 @@ image:		$(ELF_LIB)
 
 $(ELF_LIB): $(OBJS)
 	$(E) "	GEN_ELF_SOLIB $(ELF_LIB)"
-	$(Q) (cd elfshared; $(CC) --shared -o $(ELF_LIB) $(ELF_OTHER_LIBS) \
-		$(LDFLAGS) -Wl,-h,$(ELF_SONAME) $(OBJS))
+	$(Q) (cd elfshared; $(CC) --shared -o $(ELF_LIB) \
+		-L$(top_builddir)/../lib $(LDFLAGS) \
+		-Wl,-h,$(ELF_SONAME) $(OBJS) $(ELF_OTHER_LIBS))
 	$(Q) $(MV) elfshared/$(ELF_LIB) .
 	$(Q) $(RM) -f ../$(ELF_LIB) ../$(ELF_IMAGE).so ../$(ELF_SONAME)
 	$(Q) (cd ..; $(LN) $(LINK_BUILD_FLAGS) \
diff --git a/lib/blkid/Makefile.in b/lib/blkid/Makefile.in
index f23a1376b..0ec8564c9 100644
--- a/lib/blkid/Makefile.in
+++ b/lib/blkid/Makefile.in
@@ -36,7 +36,7 @@ ELF_SO_VERSION = 1
 ELF_IMAGE = libblkid
 ELF_MYDIR = blkid
 ELF_INSTALL_DIR = $(root_libdir)
-ELF_OTHER_LIBS = -L../.. -luuid
+ELF_OTHER_LIBS = -luuid
 
 BSDLIB_VERSION = 2.0
 BSDLIB_IMAGE = libblkid
diff --git a/lib/ext2fs/Makefile.in b/lib/ext2fs/Makefile.in
index 0d9ac2194..fc196fb7a 100644
--- a/lib/ext2fs/Makefile.in
+++ b/lib/ext2fs/Makefile.in
@@ -180,7 +180,7 @@ ELF_SO_VERSION = 2
 ELF_IMAGE = libext2fs
 ELF_MYDIR = ext2fs
 ELF_INSTALL_DIR = $(root_libdir)
-ELF_OTHER_LIBS = -L../.. -lcom_err
+ELF_OTHER_LIBS = -lcom_err
 
 BSDLIB_VERSION = 2.1
 BSDLIB_IMAGE = libext2fs
diff --git a/lib/quota/Makefile.in b/lib/quota/Makefile.in
index 2851eac7d..720befd98 100644
--- a/lib/quota/Makefile.in
+++ b/lib/quota/Makefile.in
@@ -31,7 +31,7 @@ LIBDIR= quota
 #ELF_IMAGE = libquota
 #ELF_MYDIR = quota
 #ELF_INSTALL_DIR = $(root_libdir)
-#ELF_OTHER_LIBS = -L../.. -lext2fs
+#ELF_OTHER_LIBS = -lext2fs
 
 #BSDLIB_VERSION = 1.0
 #BSDLIB_IMAGE = libquota
diff --git a/lib/ss/Makefile.in b/lib/ss/Makefile.in
index 19413cc21..c396f2deb 100644
--- a/lib/ss/Makefile.in
+++ b/lib/ss/Makefile.in
@@ -20,7 +20,7 @@ ELF_SO_VERSION = 2
 ELF_IMAGE = libss
 ELF_MYDIR = ss
 ELF_INSTALL_DIR = $(root_libdir)
-ELF_OTHER_LIBS = -L../.. -lcom_err $(DLOPEN_LIB)
+ELF_OTHER_LIBS = -lcom_err $(DLOPEN_LIB)
 
 BSDLIB_VERSION = 1.0
 BSDLIB_IMAGE = libss