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[PATCH] Fix sparc mathinline.h warnings

Hi!

Without this patch one gets:
/usr/include/bits/mathinline.h:107: warning: no previous prototype for `__signbitf'
/usr/include/bits/mathinline.h:116: warning: no previous prototype for `__signbit'
/usr/include/bits/mathinline.h:123: warning: no previous prototype for `__signbitl'
warnings with -Wmissing-prototypes (unless -std=c99 or -std=gnu99).

2001-11-28  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/sparc/fpu/bits/mathinline.h (__signbitf, __signbit,
	__signbitl): Only define for ISO C99.

--- libc/sysdeps/sparc/fpu/bits/mathinline.h	2001/07/06 04:56:04	1.8
+++ libc/sysdeps/sparc/fpu/bits/mathinline.h	2001/11/28 15:19:39
@@ -101,7 +101,10 @@
 /* The gcc, version 2.7 or below, has problems with all this inlining
    code.  So disable it for this version of the compiler.  */
 # if __GNUC_PREREQ (2, 8)
-   /* Test for negative number.  Used in the signbit() macro.  */
+
+#if defined __USE_ISOC99
+
+/* Test for negative number.  Used in the signbit() macro.  */
 __MATH_INLINE int
 __signbitf (float __x) __THROW
 {
@@ -142,6 +145,8 @@ __signbitl (long double __x) __THROW
 
 #endif /* sparc64 */
 
+#endif /* __USE_ISOC99 */
+
 #ifndef __NO_MATH_INLINES
 
 __MATH_INLINE double
@@ -171,7 +176,7 @@ sqrtl(long double __x) __THROW
 }
 #endif /* sparc64 */
 
-#endif
+#endif /* !__NO_MATH_INLINES */
 
 /* This code is used internally in the GNU libc.  */
 #ifdef __LIBC_INTERNAL_MATH_INLINES

	Jakub
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