Don't use -Wno-uninitialized in math/

[Andreas Schwab]

Joseph Myers <joseph@codesourcery.com> writes:

> 	* math/Makefile (CFLAGS): Don't add -Wno-uninitialized.

That breaks aarch64.

In file included from ../include/fpu_control.h:1:0,
                 from ../sysdeps/aarch64/fpu/math_private.h:23,
                 from ../sysdeps/ieee754/dbl-64/e_exp.c:41:
../sysdeps/ieee754/dbl-64/e_exp.c: In function '__ieee754_exp':
../sysdeps/aarch64/fpu/fpu_control.h:28:3: error: 'ctx.env.__fpcr' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   __asm__ __volatile__ ("msr fpcr, %0" : : "r" (fpcr))
   ^
In file included from ../sysdeps/ieee754/flt-32/math_private.h:3:0,
                 from ../sysdeps/ieee754/dbl-64/wordsize-64/math_private.h:3,
                 from ../sysdeps/aarch64/fpu/math_private.h:326,
                 from ../sysdeps/ieee754/dbl-64/e_exp.c:41:
../sysdeps/generic/math_private.h:652:17: note: 'ctx.env.__fpcr' was declared here
   struct rm_ctx ctx __attribute__((cleanup (CLEANUPFUNC ## _ctx))); \
                 ^
../sysdeps/generic/math_private.h:661:3: note: in expansion of macro 'SET_RESTORE_ROUND_GENERIC'
   SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround, libc_feresetround)
   ^
../sysdeps/ieee754/dbl-64/e_exp.c:63:5: note: in expansion of macro 'SET_RESTORE_ROUND'
     SET_RESTORE_ROUND (FE_TONEAREST);
     ^

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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