Remove GCC version conditionals on -Wmaybe-uninitialized pragmas.

One common case of __GNUC_PREREQ (4, 7) conditionals is use of
diagnostic control pragmas for -Wmaybe-uninitialized, an option
introduced in GCC 4.7 where older GCC needed -Wuninitialized to be
controlled instead if the warning appeared with older GCC.  This patch
removes such conditionals.

(There remain several older uses of -Wno-uninitialized in makefiles
that still need to be converted to diagnostic control pragmas if the
issue is still present with current sources and supported GCC
versions, and it's likely that in most cases those pragmas also will
end up controlling -Wmaybe-uninitialized.)

Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch, except for libresolv
since res_send.c contains assertions whose line numbers are changed by
the patch).

	* resolv/res_send.c (send_vc) [__GNUC_PREREQ (4, 7)]: Make code
	unconditional.
	* soft-fp/fmadf4.c [__GNUC_PREREQ (4, 7)]: Likewise.
	[!__GNUC_PREREQ (4, 7)]: Remove conditional code.
	* soft-fp/fmasf4.c [__GNUC_PREREQ (4, 7)]: Make code
	unconditional.
	[!__GNUC_PREREQ (4, 7)]: Remove conditional code.
	* soft-fp/fmatf4.c [__GNUC_PREREQ (4, 7)]: Make code
	unconditional.
	[!__GNUC_PREREQ (4, 7)]: Remove conditional code.
	* stdlib/setenv.c
	[((__GNUC__ << 16) + __GNUC_MINOR__) >= ((4 << 16) + 7)]: Make
	code unconditional.
	[!(((__GNUC__ << 16) + __GNUC_MINOR__) >= ((4 << 16) + 7))]:
	Remove conditional code.
	* sysdeps/ieee754/dbl-64/e_lgamma_r.c
	(__ieee754_lgamma_r) [__GNUC_PREREQ (4, 7)]: Make code
	unconditional.
	(__ieee754_lgamma_r) [!__GNUC_PREREQ (4, 7)]: Remove conditional
	code.
	* sysdeps/ieee754/flt-32/e_lgammaf_r.c
	(__ieee754_lgammaf_r) [__GNUC_PREREQ (4, 7)]: Make code
	unconditional.
	(__ieee754_lgammaf_r) [!__GNUC_PREREQ (4, 7)]: Remove conditional
	code.
	* sysdeps/ieee754/ldbl-128/k_tanl.c
	(__kernel_tanl) [__GNUC_PREREQ (4, 7)]: Make code unconditional.
	(__kernel_tanl) [!__GNUC_PREREQ (4, 7)]: Remove conditional code.
	* sysdeps/ieee754/ldbl-128ibm/k_tanl.c
	(__kernel_tanl) [__GNUC_PREREQ (4, 7)]: Make code unconditional.
	(__kernel_tanl) [!__GNUC_PREREQ (4, 7)]: Remove conditional code.
	* sysdeps/ieee754/ldbl-96/e_lgammal_r.c
	(__ieee754_lgammal_r) [__GNUC_PREREQ (4, 7)]: Make code
	unconditional.
	(__ieee754_lgammal_r) [!__GNUC_PREREQ (4, 7)]: Remove conditional
	code.
	* sysdeps/ieee754/ldbl-96/k_tanl.c
	(__kernel_tanl) [__GNUC_PREREQ (4, 7)]: Make code unconditional.
	(__kernel_tanl) [!__GNUC_PREREQ (4, 7)]: Remove conditional code.

1 files changed, 0 insertions, 4 deletions

diff --git a/soft-fp/fmasf4.c b/soft-fp/fmasf4.c
index 359d49cdd9..9524913b13 100644
--- a/soft-fp/fmasf4.c
+++ b/soft-fp/fmasf4.c
@@ -34,11 +34,7 @@
    it may be where R is defined using a macro or it may be where the
    macro is defined.  */
 DIAG_PUSH_NEEDS_COMMENT;
-#if __GNUC_PREREQ (4, 7)
 DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wmaybe-uninitialized");
-#else
-DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wuninitialized");
-#endif
 #include <math.h>
 #include "soft-fp.h"
 #include "single.h"