Package: libmpeg3 Version: 1.5.4-5 Severity: normal Tags: patch User: ubuntu-de...@lists.ubuntu.com Usertags: origin-ubuntu oneiric ubuntu-patch
*** /tmp/tmpBv_MOB In Ubuntu, the default configuration for the linker includes the flag --as-needed. With this flag activated this package fails to build from source. The related bug report is: https://bugs.launchpad.net/ubuntu/oneiric/+source/libmpeg3/+bug/770863 The following build log snippet shows the error obtained: Excerpt 469 lines into the build log: amd64/libmpeg3.so.1.5.4: undefined reference to `a52_block' amd64/libmpeg3.so.1.5.4: undefined reference to `pthread_mutexattr_init' amd64/libmpeg3.so.1.5.4: undefined reference to `a52_frame' amd64/libmpeg3.so.1.5.4: undefined reference to `a52_free' amd64/libmpeg3.so.1.5.4: undefined reference to `a52_syncinfo' amd64/libmpeg3.so.1.5.4: undefined reference to `sin' amd64/libmpeg3.so.1.5.4: undefined reference to `a52_init' amd64/libmpeg3.so.1.5.4: undefined reference to `pow' amd64/libmpeg3.so.1.5.4: undefined reference to `cos' amd64/libmpeg3.so.1.5.4: undefined reference to `pthread_join' collect2: ld returned 1 exit status make[1]: *** [amd64/mpeg3dump] Error 1 make[1]: Leaving directory `/build/buildd/libmpeg3-1.5.4' make: *** [build-stamp] Error 2 dpkg-buildpackage: error: debian/rules build gave error exit status 2 ****************************************************************************** Build finished at 20110424-0609 FAILED [dpkg-buildpackage died] Purging chroot-autobuild/build/buildd/libmpeg3-1.5.4 To reproduce this bug: - use the flag --as-needed to the linker command, prepending -Wl,--as-needed to the shared library target in Makefile or - Build this package with the latest alpha 2 release of Ubuntu Oneiric from: http://cdimage.ubuntu.com/releases/oneiric/alpha-2/oneiric-alternate-i386.iso More info regarding linker related changes can be found in: http://lists.debian.org/debian-devel-announce/2011/02/msg00011.html To fix this issue, this patch produces the following changes: * Makefile: Changed parameter order in call to linker to avoid build errors with ld --as-needed Thanks for considering the patch. -- System Information: Debian Release: squeeze/sid APT prefers natty-updates APT policy: (500, 'natty-updates'), (500, 'natty-security'), (500, 'natty') Architecture: amd64 (x86_64) Kernel: Linux 2.6.38-8-generic (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash
diff -u libmpeg3-1.5.4/Makefile libmpeg3-1.5.4/Makefile --- libmpeg3-1.5.4/Makefile +++ libmpeg3-1.5.4/Makefile @@ -161,8 +161,8 @@ $(SHAREDOUTPUT): $(SOBJS) gcc -shared -fPIC -o $(SHAREDOUTPUT) \ - $(LIBS) $(SOBJS) \ - -Wl,-soname -Wl,$(SHLIB_SONAME) + $(SOBJS) \ + -Wl,-soname -Wl,$(SHLIB_SONAME) $(LIBS) ( cd $(OBJDIR); \ ln -sf $(SHLIB_FULLNAME) $(SHLIB); \ ln -sf $(SHLIB_FULLNAME) $(SHLIB_SONAME) \
