Jonathan Wakely c3be340eb6 PR libstdc++/86450 use -Wabi=2 and simplify -Werror use ... Use -Wabi=2 to fix warnings about -Wabi having no effect on its own. This requires suppressing two warnings in src/c++11/debug.cc which do not affect the library ABI. Previously libstdc++ defaulted to --enable-werror but the -Werror flag was not actually added unless --enable-maintainer-mode was used. This is not documented and not the expected behaviour. This removes any special treatment for maintainer-mode, makes -Werror depend directly on --enable-werror, and changes the default to --enable-werror=no. PR libstdc++/86450 * acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Don't define WERROR. (GLIBCXX_EXPORT_FLAGS): Use -Wabi=2 instead of -Wabi. * configure: Regenerate. * configure.ac: Change GLIBCXX_ENABLE_WERROR default to "no". * doc/Makefile.in: Regenerate. * fragment.am: Set WERROR_FLAG to -Werror instead of $(WERROR). * include/Makefile.in: Regenerate. * libsupc++/Makefile.in: Regenerate. * po/Makefile.in: Regenerate. * python/Makefile.in: Regenerate. * src/Makefile.in: Regenerate. * src/c++11/Makefile.in: Regenerate. * src/c++11/debug.cc: Use diagnostic pragmas to suppress warnings from -Wabi=2 that don't affect exported symbols. * src/c++98/Makefile.in: Regenerate. * src/filesystem/Makefile.in: Regenerate. * testsuite/Makefile.in: Regenerate. From-SVN: r262824		2018-07-17 14:18:47 +01:00
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Makefile.am	Update copyright years.	2018-01-03 11:03:58 +01:00
Makefile.in	PR libstdc++/86450 use -Wabi=2 and simplify -Werror use	2018-07-17 14:18:47 +01:00
POTFILES.in	Update copyright years.	2018-01-03 11:03:58 +01:00
de.po	Update copyright years.	2018-01-03 11:03:58 +01:00
fr.po	Update copyright years.	2018-01-03 11:03:58 +01:00
libstdc++.pot	Update copyright years.	2018-01-03 11:03:58 +01:00
string_literals.cc	Update copyright years.	2018-01-03 11:03:58 +01:00