http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57848
--- Comment #1 from Dongsheng Song <dongsheng.song at gmail dot com> ---
x86_64-w64-mingw32 failed with same errors:
$ make all-am
make[1]: Entering directory
`/home/cauchy/obj/x86_64-w64-mingw32-gcc49/mingw-w64-crt'
x86_64-w64-mingw32-gcc -DHAVE_CONFIG_H -I.
-I/home/cauchy/vcs/svn/mingw-w64/trunk/mingw-w64-crt -m64
-I/home/cauchy/vcs/svn/mingw-w64/trunk/mingw-w64-crt/include -D_CRTBLD
-I/home/cauchy/cross/x86_64-windows-gcc49/x86_64-w64-mingw32/include -pipe
-std=gnu99 -Wall -Wextra -Wformat -Wstrict-aliasing -Wshadow -Wpacked -Winline
-Wimplicit-function-declaration -Wmissing-noreturn -Wmissing-prototypes -g -O2
-MT intrincs/lib64_libkernel32_a-__movsb.o -MD -MP -MF
intrincs/.deps/lib64_libkernel32_a-__movsb.Tpo -c -o
intrincs/lib64_libkernel32_a-__movsb.o `test -f 'intrincs/__movsb.c' || echo
'/home/cauchy/vcs/svn/mingw-w64/trunk/mingw-w64-crt/'`intrincs/__movsb.c
In file included from
/home/cauchy/cross/x86_64-windows-gcc49/lib/gcc/x86_64-w64-mingw32/4.9.0/include/x86intrin.h:27:0,
from
/home/cauchy/cross/x86_64-windows-gcc49/x86_64-w64-mingw32/include/intrin.h:59,
from
/home/cauchy/vcs/svn/mingw-w64/trunk/mingw-w64-crt/intrincs/__movsb.c:1:
/home/cauchy/cross/x86_64-windows-gcc49/lib/gcc/x86_64-w64-mingw32/4.9.0/include/ia32intrin.h:54:9:
internal compiler error: in c_builtin_function_ext_scope, at c/c-decl.c:3633
#pragma GCC target("sse4.2")
^
0x5357eb c_builtin_function_ext_scope(tree_node*)
/home/cauchy/vcs/svn/gcc/trunk/gcc/c/c-decl.c:3633
0x75e618 add_builtin_function_common
/home/cauchy/vcs/svn/gcc/trunk/gcc/langhooks.c:561
0x75eed3 add_builtin_function_ext_scope(char const*, tree_node*, int,
built_in_class, char const*, tree_node*)
/home/cauchy/vcs/svn/gcc/trunk/gcc/langhooks.c:597
0xa12124 ix86_add_new_builtins
/home/cauchy/vcs/svn/gcc/trunk/gcc/config/i386/i386.c:27199
0xa12124 ix86_valid_target_attribute_tree(tree_node*)
/home/cauchy/vcs/svn/gcc/trunk/gcc/config/i386/i386.c:4512
0x5b5d90 ix86_pragma_target_parse
/home/cauchy/vcs/svn/gcc/trunk/gcc/config/i386/i386-c.c:385
0x5a65ad handle_pragma_target
/home/cauchy/vcs/svn/gcc/trunk/gcc/c-family/c-pragma.c:805
0x55b37e c_parser_pragma
/home/cauchy/vcs/svn/gcc/trunk/gcc/c/c-parser.c:8749
0x56995b c_parser_external_declaration
/home/cauchy/vcs/svn/gcc/trunk/gcc/c/c-parser.c:1345
0x56a2c7 c_parser_translation_unit
/home/cauchy/vcs/svn/gcc/trunk/gcc/c/c-parser.c:1251
0x56a2c7 c_parse_file()
/home/cauchy/vcs/svn/gcc/trunk/gcc/c/c-parser.c:11000
0x5a4104 c_common_parse_file()
/home/cauchy/vcs/svn/gcc/trunk/gcc/c-family/c-opts.c:1046
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[1]: *** [intrincs/lib64_libkernel32_a-__movsb.o] Error 1
make[1]: Leaving directory
`/home/cauchy/obj/x86_64-w64-mingw32-gcc49/mingw-w64-crt'
make: *** [all] Error 2
