Fix the following build failure raised since bump of autoconf to version
2.71 in commit ecd54b65c1 and
http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commit;h=ec90049dfcf4538750e61d675d885157fa5ca7f8:
checking for /home/buildroot/autobuild/instance-0/output-1/host/bin/mips-linux-gnu-gcc options needed to detect all undeclared functions... cannot detect
configure: error: in `/home/buildroot/autobuild/instance-0/output-1/build/boinc-7.16.18':
configure: error: cannot make /home/buildroot/autobuild/instance-0/output-1/host/bin/mips-linux-gnu-gcc report undeclared builtins
This error raised because AC_CHECK_DECLS returns an error due to -mavx
flag:
mips-linux-gnu-gcc: error: unrecognized command line option '-mavx'
To fix this build failure, hard code ac_cv_c_undeclared_builtin_options
to 'none needed' as removing '-mavx' from CPPFLAGS will hinder the
detection of xgetbv, xgetbv, __xgetbv, cpuid, _cpuid and __cpuid
Fixes:
- http://autobuild.buildroot.org/results/4b468a5d3bfbff9638316ca930ef791867774aef
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
be5e0230c6