Bug 642322 – sys-devel/gcc in particular g++ segfaults building dev-python/matplotlib-1.4.3

• Status: RESOLVED DUPLICATE of bug 638792
• Product: Gentoo Linux

[Description alex Mezey 2017-12-26 15:12:53 UTC]

g++ segfaults on emerging the mentioned package.
I tried to investigate with gdb but I don't know how to reproduce the compiling in gdb. I know I have to cd to the right directory and do
run -O2 -pipe -march=corei7 -mcx16 -msahf _png.cpp
but of cause the includes are not found and so I could not reproduce the error in gdb. Maybe I will have to to help the bug beeing resolved - instructions please.

Reproducible: Always

Steps to Reproduce:
1.emerge -1 dev-python/matplotlib
2.
3.
Actual Results:  
src/_png.cpp:103:12: internal compiler error: Segmentation fault

Expected Results:  
compile and shut up or throw error messages for broken code but not segfault.

part of build.log:
src/_png.cpp: In member function ‘Py::Object _png_module::write_png(const Py::Tu
ple&)’:
src/_png.cpp:103:12: internal compiler error: Segmentation fault
 Py::Object _png_module::write_png(const Py::Tuple& args)

[Comment 1 alex Mezey 2017-12-26 15:15:40 UTC]

Created attachment 511656 [details]
environment

[Comment 2 alex Mezey 2017-12-26 20:13:15 UTC]

update:
sys-devel/gcc-7.2.0    same error
sys-devel/gcc-5.4.0    works fine

[Comment 3 Felix Janda 2017-12-26 21:38:44 UTC]

This is a duplicate of bug 638792

[Comment 4 Andreas Sturmlechner 2017-12-28 13:44:31 UTC]

*** This bug has been marked as a duplicate of bug 638792 ***