[Buildroot] [PATCH v2] libffi: fix the build for MIPS soft-float with recent compilers

[Peter Korsgaard <peter@korsgaard.com>]

>>>>> "Vicente" == Vicente Olivert Riera <Vincent.Riera@imgtec.com> writes:

 > Recent MIPS compilers have an stricter agreement between the compiler
 > and the assembler on the ABI. The compiler now passes -msoft-float to
 > the assembler where it previously did not.

 > libffi uses MIPS hard-float instructions so when we try to build it for
 > soft-float using a recent compiler it fails because of the explained
 > above. This package should be fixed in order to add support for
 > soft-float.

 > In the meantime we can add a little hack in order to be able to build it
 > for soft-float. Basically we add ".set hardfloat" so the assembler will
 > not disable the hard-float instructions. The build will of course
 > include some hard-float bits which shouldn't exist in a soft-float
 > build, and that may cause runtime problems. But that's what we already
 > had before and we had lived with it.

 > We choose to apply this temporary fix because it only affects MIPS
 > soft-float builds. Otherwise we would need to disable libffi and
 > recursively all the packages depending on it (python, libglib2...) for
 > MIPS soft-float, which would be a bit overkill.

 > Fixes:

 >   http://autobuild.buildroot.net/results/6b0607b7cb0ac5525c2e47e819301f38bd2d6b30/

 > Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
 > ---
 > Changes v1 -> v2:
 >  - Add autobuild URL

Committed, thanks.

-- 
Bye, Peter Korsgaard