Bug#777848: feel++: ftbfs with GCC-5

[Matthias Klose]

Package: src:feel++
Version: 1:0.99.0-final.1-1
Severity: normal
Tags: sid stretch
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-5

Please keep this issue open in the bug tracker for the package it
was filed for.  If a fix in another package is required, please
file a bug for the other package (or clone), and add a block in this
package. Please keep the issue open until the package can be built in
a follow-up test rebuild.

The package fails to build in a test rebuild on at least amd64 with
gcc-5/g++-5, but succeeds to build with gcc-4.9/g++-4.9. The
severity of this report may be raised before the stretch release.

The full build log can be found at:
http://people.debian.org/~doko/logs/gcc5-20150205/feel++_0.99.0-final.1-1_unstable_gcc5.log
The last lines of the build log are at the end of this report.

To build with GCC 5, either set CC=gcc-5 CXX=g++-5 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t experimental install g++ 

Common build failures are C11 as the default C mode, 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-5/porting_to.html

[...]
-- set direct/DIRserial.c as c++
-- set direct/DIRsubrout.c as c++
-- set cdirect/cdirect.c as c++
-- set cdirect/hybrid.c as c++
-- set praxis/praxis.c as c++
-- set luksan/plis.c as c++
-- set luksan/plip.c as c++
-- set luksan/pnet.c as c++
-- set luksan/mssubs.c as c++
-- set luksan/pssubs.c as c++
-- set crs/crs.c as c++
-- set mlsl/mlsl.c as c++
-- set mma/mma.c as c++
-- set mma/ccsa_quadratic.c as c++
-- set cobyla/cobyla.c as c++
-- set newuoa/newuoa.c as c++
-- set neldermead/nldrmd.c as c++
-- set neldermead/sbplx.c as c++
-- set auglag/auglag.c as c++
-- set bobyqa/bobyqa.c as c++
-- set isres/isres.c as c++
-- set slsqp/slsqp.c as c++
-- set esch/esch.c as c++
-- set api/general.c as c++
-- set api/options.c as c++
-- set api/optimize.c as c++
-- set api/deprecated.c as c++
-- set api/f77api.c as c++
-- set util/mt19937ar.c as c++
-- set util/sobolseq.c as c++
-- set util/timer.c as c++
-- set util/stop.c as c++
-- set util/redblack.c as c++
-- set util/qsort_r.c as c++
-- set util/rescale.c as c++
-- Performing Test standard_math_library_linked_to_automatically
-- Performing Test standard_math_library_linked_to_automatically - Failed
-- Performing Test standard_math_library_linked_to_as_m
-- Performing Test standard_math_library_linked_to_as_m - Failed
CMake Error at contrib/eigen/CMakeLists.txt:76 (message):
  Can't link to the standard math library.  Please report to the Eigen
  developers, telling them about your platform.


-- Configuring incomplete, errors occurred!
See also "/build/feel++-LZ7j46/feel++-0.99.0-final.1/obj-x86_64-linux-gnu/CMakeFiles/CMakeOutput.log".
See also "/build/feel++-LZ7j46/feel++-0.99.0-final.1/obj-x86_64-linux-gnu/CMakeFiles/CMakeError.log".
make: *** [obj-x86_64-linux-gnu/CMakeCache.txt] Error 1
/usr/share/cdbs/1/class/cmake.mk:55: recipe for target 'obj-x86_64-linux-gnu/CMakeCache.txt' failed
dpkg-buildpackage: error: debian/rules build-arch gave error exit status 2