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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backward	P0935R0 Eradicating unnecessarily explicit default constructors	2018-06-14 15:12:24 +01:00
bits	PR libstdc++/86537 remove less<shared_ptr<T>> partial specialization	2018-07-16 18:13:41 +01:00
c
c_compatibility
c_global	PR libstdc++/85729 add linkage specifications to headers	2018-05-10 13:35:45 +01:00
c_std
debug	functions.h (__gnu_debug::__check_string): Move...	2018-07-06 17:02:33 +00:00
decimal
experimental	Add experimental::sample and experimental::shuffle from N4531	2018-06-25 17:23:49 +01:00
ext	LWG 3035. std::allocator's constructors should be constexpr	2018-06-18 16:47:07 +01:00
parallel
precompiled	P0556R3 Integral power-of-2 operations, P0553R2 Bit operations	2018-07-03 22:04:45 +01:00
profile
std	P0935R0 Eradicating unnecessarily explicit default constructors	2018-07-06 13:39:02 +01:00
tr1	PR libstdc++/83140 - assoc_legendre returns negated value when m is odd	2018-05-10 13:59:52 +00:00
tr2
Makefile.am	P0556R3 Integral power-of-2 operations, P0553R2 Bit operations	2018-07-03 22:04:45 +01:00
Makefile.in	PR libstdc++/86450 use -Wabi=2 and simplify -Werror use	2018-07-17 14:18:47 +01:00