On Tue, 5 Jan 2016, Bernd Edlinger wrote:
an in-tree mpfr build enables inline asm code, which makes the mips-bootstrap fail, because at least mpfr 2.4.2 uses the "=h" constraint but in config/mips/constraints.md we find: "Formerly the @code{hi} register. This constraint is no longer supported.".Using asm code is generally not desirable for in-tree mpfr builds. So I looked for a way to disable the asm code, and found it can be done, but differently than for in-tree gmp. See the attached patch.
Note that, at least with recent versions, if you configure gmp with --disable-assembly, the flag -DNO_ASM ends up in __GMP_CFLAGS (in gmp.h) and mpfr thus uses it automatically.
-- Marc Glisse
