Bug#746877: libsfml: ftbfs with GCC-4.9

[Matthias Klose]

Package: src:libsfml
Version: 2.1+dfsg-5
Severity: important
Tags: sid jessie
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-4.9

The package fails to build in a test rebuild on at least amd64 with
gcc-4.9/g++-4.9, but succeeds to build with gcc-4.8/g++-4.8. The
severity of this report may be raised before the jessie release.

The full build log can be found at:
http://people.debian.org/~doko/logs/failed-gcc49/libsfml_2.1+dfsg-5_unstable_gcc49.log
The last lines of the build log are at the end of this report.

To build with GCC 4.9, either set CC=gcc-4.9 CXX=g++-4.9 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t experimental install g++ 

Common build failures are new warnings resulting in build failures
with -Werror turned on, or new/dropped symbols in Debian symbols
files.  For other C/C++ related build failures see the porting guide
at http://gcc.gnu.org/gcc-4.9/porting_to.html

[...]
   debian/rules override_dh_strip
I: libsfml_2.1+dfsg
make[1]: Entering directory `/«BUILDDIR»/libsfml-2.1+dfsg'
dh_strip --dbg-package=libsfml2-dbg
make[1]: Leaving directory `/«BUILDDIR»/libsfml-2.1+dfsg'
   dh_makeshlibs -a
dpkg-gensymbols: warning: some new symbols appeared in the symbols file: see diff output below
dpkg-gensymbols: warning: debian/libsfml-audio2/DEBIAN/symbols doesn't match completely debian/libsfml-audio2.symbols
--- debian/libsfml-audio2.symbols (libsfml-audio2_2.1+dfsg-5_amd64)
+++ dpkg-gensymbolsUmfUmv	2014-04-18 12:27:42.548942890 +0000
@@ -123,6 +123,7 @@
  _ZNK2sf5Sound7getLoopEv at Base 2.1
  _ZNK2sf5Sound9getBufferEv at Base 2.1
  _ZNK2sf5Sound9getStatusEv at Base 2.1
+ _ZNKSt5ctypeIcE8do_widenEc at Base 2.1+dfsg-5
  (optional=templinst)_ZNSt6vectorIsSaIsEE13_M_assign_auxIPKsEEvT_S5_St20forward_iterator_tag at Base 2.1
  (optional=templinst)_ZNSt6vectorIsSaIsEE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPsS1_EERKs at Base 2.1
  (optional=templinst|subst)_ZNSt6vectorIsSaIsEE14_M_fill_insertEN9__gnu_cxx17__normal_iteratorIPsS1_EE{size_t}RKs at Base 2.1
dpkg-gensymbols: warning: some new symbols appeared in the symbols file: see diff output below
dpkg-gensymbols: warning: some symbols or patterns disappeared in the symbols file: see diff output below
dpkg-gensymbols: warning: debian/libsfml-graphics2/DEBIAN/symbols doesn't match completely debian/libsfml-graphics2.symbols
--- debian/libsfml-graphics2.symbols (libsfml-graphics2_2.1+dfsg-5_amd64)
+++ dpkg-gensymbolsuihJXo	2014-04-18 12:27:43.129941486 +0000
@@ -261,9 +261,9 @@
  _ZN2sf7TextureD1Ev at Base 2.1
  _ZN2sf7TextureD2Ev at Base 2.1
  _ZN2sf7TextureaSERKS0_ at Base 2.1
- _ZN2sf8DrawableD0Ev at Base 2.1
- _ZN2sf8DrawableD1Ev at Base 2.1
- _ZN2sf8DrawableD2Ev at Base 2.1
+#MISSING: 2.1+dfsg-5# _ZN2sf8DrawableD0Ev at Base 2.1
+#MISSING: 2.1+dfsg-5# _ZN2sf8DrawableD1Ev at Base 2.1
+#MISSING: 2.1+dfsg-5# _ZN2sf8DrawableD2Ev at Base 2.1
  _ZN2sf9Transform5scaleERKNS_7Vector2IfEE at Base 2.1
  _ZN2sf9Transform5scaleERKNS_7Vector2IfEES4_ at Base 2.1
  _ZN2sf9Transform5scaleEff at Base 2.1
@@ -370,6 +370,7 @@
  _ZNK2sf9Transform14transformPointERKNS_7Vector2IfEE at Base 2.1
  _ZNK2sf9Transform14transformPointEff at Base 2.1
  _ZNK2sf9Transform9getMatrixEv at Base 2.1
+ _ZNKSt5ctypeIcE8do_widenEc at Base 2.1+dfsg-5
  _ZNSbIjSt11char_traitsIjESaIjEE4_Rep20_S_empty_rep_storageE at Base 2.1
  (optional=templinst|arch=ia64 powerpc s390x sparc)_ZNSt3mapIjN2sf5GlyphESt4lessIjESaISt4pairIKjS1_EEED1Ev at Base 2.1
  (optional=templinst|arch=ia64 powerpc s390x sparc)_ZNSt3mapIjN2sf5GlyphESt4lessIjESaISt4pairIKjS1_EEED2Ev at Base 2.1
Use of uninitialized value in numeric eq (==) at /usr/bin/dh_makeshlibs line 251.
Use of uninitialized value in numeric eq (==) at /usr/bin/dh_makeshlibs line 251.
Use of uninitialized value in numeric eq (==) at /usr/bin/dh_makeshlibs line 251.
dh_makeshlibs: failing due to earlier errors
make: *** [binary-arch] Error 2
dpkg-buildpackage: error: fakeroot debian/rules binary-arch gave error exit status 2