https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51450
--- Comment #7 from Sam James <sjames at gcc dot gnu.org> ---
Possibly fixed by:
commit 11869b9c9eb8bcc8cb6a615141f522a447377324
Author: Gary V. Vaughan <g...@gnu.org>
Date: Sat Nov 26 11:06:35 2011 +0700
m4: fix logic error leading to -fno-rtti being added wrongly.
* m4/libtool.m4 (_LT_COMPILER_OPTION): Negate comparison so that
compiler flags are added correctly.
Signed-off-by: Gary V. Vaughan <g...@gnu.org>
or
commit ce55211c8b63914009536e3556727719ce988c39
Author: Christian Cornelssen <cc...@cs.tu-berlin.de>
Date: Fri Nov 22 22:36:25 2002 +0000
* libtool.m4 (AC_LIBTOOL_COMPILER_OPTION,
AC_LIBTOOL_PROG_CC_C_O): Changed method for compilation with
custom flags to be language-independent. Thereby removed
CFLAGS/GCJFLAGS mixup bug. Imitate Autoconf-style logging.
Log entries no longer discarded by compilation failures.
(_LT_AC_LANG_C_CONFIG, _LT_AC_LANG_CXX_CONFIG,
_LT_AC_LANG_GCJ_CONFIG): Tuned settings of
lt_simple_compile_test_code and lt_simple_link_test_code
to avoid warnings that could break some option detections.
(AC_LIBTOOL_PROG_COMPILER_NO_RTTI): Removed
redundant "-c conftest.$ac_ext" in the argument to
AC_LIBTOOL_COMPILER_OPTION.
(AC_LIBTOOL_PROG_LD_SHLIBS): Replaced C-specific conftest
source code with $lt_simple_compile_test_code, to support
the "-lc" test with other languages.
or one of the multi lang fixes around that time.
