https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61652
Bug ID: 61652
Summary: Option --enable-libstdcxx-debug doesn't pass debug
options to libstdc++.so
Product: gcc
Version: 4.8.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: yuri at tsoft dot com
Based on documentation here
https://gcc.gnu.org/onlinedocs/libstdc++/manual/debug.html I configured gcc to
build a debug version of libstdc++.so:
$ ../src/configure --prefix=/opt/gcc/4.8.2/ --enable-libstdcxx-debug
--enable-libstdcxx-debug-flags='-g3 -O0'
$ gmake
It did build another version of libstdc++.so with different size under
lib/debug/, but both of them have local variables optimized away.
I am interested in ../src/libstdc++-v3/libsupc++/dyncast.cc, touching it and
rebuilding shows that -O0 hasn't been passed to the compile command, and it
builds with -O2.
Building gcc-4.8.2 on FreeBSD-10
