[debug/profile-mode] broken c++config.h

[Paweł Sikora]

Hi,

during gcc build process there's some sed magic (libstdc++-v3/include/Makefile.{am,in}) in action
which modifies libstdc++/include/bits/c++config.h (replaces '#define _GLIBCXX_EXTERN_TEMPLATE'
according to --enable-extern-template=yes/no settings). in fact, this sed rule also produces
a wrong '#define _GLIBCXX_EXTERN_TEMPLATE 1 -1' in line 293:

#if defined(_GLIBCXX_DEBUG) || defined(_GLIBCXX_PROFILE)
# define _GLIBCXX_STD_C __cxx1998
# define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER \
         namespace _GLIBCXX_STD_C { _GLIBCXX_BEGIN_NAMESPACE_VERSION
# define _GLIBCXX_END_NAMESPACE_CONTAINER \
         } _GLIBCXX_END_NAMESPACE_VERSION
# undef _GLIBCXX_EXTERN_TEMPLATE
# define _GLIBCXX_EXTERN_TEMPLATE 1 -1               <==== here
#endif

this broken macro causes runtime errors on mingw (see PR52540).
attached small patch fixes all weird runtime errors for me.

BR,
Paweł.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: gcc-extern-template-sed.patch
Type: text/x-patch
Size: 1654 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20120316/164cc8f5/attachment.bin>