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-rw-r--r--ChangeLog16
-rw-r--r--libio/stdio.h2
-rw-r--r--math/bits/math-finite.h8
-rw-r--r--misc/sys/cdefs.h21
4 files changed, 33 insertions, 14 deletions
diff --git a/ChangeLog b/ChangeLog
index a40fb46..915b492 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,19 @@
+2014-09-16 Siddhesh Poyarekar <siddhesh@redhat.com>
+ Jakub Jelinek <jakub@redhat.com>
+
+ [BZ #17266]
+ * libio/stdio.h: Check definition of __fortify_function
+ instead of __extern_always_inline to include bits/stdio2.h.
+ * math/bits/math-finite.h [__USE_XOPEN || __USE_ISOC99]: Also
+ check if __extern_always_inline is defined.
+ [__USE_MISC || __USE_XOPEN]: Likewise.
+ [__USE_ISOC99] Likewise.
+ * misc/sys/cdefs.h (__fortify_function): Define only if
+ __extern_always_inline is defined.
+ [!__cplusplus || __GNUC_PREREQ (4,3)]: Revert to defining
+ __extern_always_inline and __extern_inline only for g++-4.3
+ and newer or a compatible gcc.
+
2014-09-15 Andreas Schwab <schwab@linux-m68k.org>
[BZ #17371]
diff --git a/libio/stdio.h b/libio/stdio.h
index d8c0bdb..1f4f837 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -932,7 +932,7 @@ extern void funlockfile (FILE *__stream) __THROW;
#ifdef __USE_EXTERN_INLINES
# include <bits/stdio.h>
#endif
-#if __USE_FORTIFY_LEVEL > 0 && defined __extern_always_inline
+#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
# include <bits/stdio2.h>
#endif
#ifdef __LDBL_COMPAT
diff --git a/math/bits/math-finite.h b/math/bits/math-finite.h
index aa755de..0656645 100644
--- a/math/bits/math-finite.h
+++ b/math/bits/math-finite.h
@@ -251,7 +251,8 @@ extern long double __REDIRECT_NTH (lgammal_r, (long double, int *),
# endif
#endif
-#if defined __USE_XOPEN || defined __USE_ISOC99
+#if ((defined __USE_XOPEN || defined __USE_ISOC99) \
+ && defined __extern_always_inline)
/* lgamma. */
__extern_always_inline double __NTH (lgamma (double __d))
{
@@ -284,7 +285,8 @@ __extern_always_inline long double __NTH (lgammal (long double __d))
# endif
#endif
-#if defined __USE_MISC || defined __USE_XOPEN
+#if ((defined __USE_MISC || defined __USE_XOPEN) \
+ && defined __extern_always_inline)
/* gamma. */
__extern_always_inline double __NTH (gamma (double __d))
{
@@ -422,7 +424,7 @@ extern long double __REDIRECT_NTH (sqrtl, (long double), __sqrtl_finite);
# endif
#endif
-#ifdef __USE_ISOC99
+#if defined __USE_ISOC99 && defined __extern_always_inline
/* tgamma. */
extern double __gamma_r_finite (double, int *);
__extern_always_inline double __NTH (tgamma (double __d))
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index 04db956..01e81ba 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -131,7 +131,6 @@
/* Fortify support. */
#define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1)
#define __bos0(ptr) __builtin_object_size (ptr, 0)
-#define __fortify_function __extern_always_inline __attribute_artificial__
#if __GNUC_PREREQ (4,3)
# define __warndecl(name, msg) \
@@ -318,12 +317,13 @@
# define __attribute_artificial__ /* Ignore */
#endif
-#ifdef __GNUC__
-/* One of these will be defined if the __gnu_inline__ attribute is
- available. In C++, __GNUC_GNU_INLINE__ will be defined even though
- __inline does not use the GNU inlining rules. If neither macro is
- defined, this version of GCC only supports GNU inline semantics. */
-# if defined __GNUC_STDC_INLINE__ || defined __GNUC_GNU_INLINE__
+/* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+ inline semantics, unless -fgnu89-inline is used. Using __GNUC_STDC_INLINE__
+ or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+ older than 4.3 may define these macros and still not guarantee GNU inlining
+ semantics. */
+#if !defined __cplusplus || __GNUC_PREREQ (4,3)
+# if defined __GNUC_STDC_INLINE__ || defined __cplusplus
# define __extern_inline extern __inline __attribute__ ((__gnu_inline__))
# define __extern_always_inline \
extern __always_inline __attribute__ ((__gnu_inline__))
@@ -331,9 +331,10 @@
# define __extern_inline extern __inline
# define __extern_always_inline extern __always_inline
# endif
-#else /* Not GCC. */
-# define __extern_inline /* Ignore */
-# define __extern_always_inline /* Ignore */
+#endif
+
+#ifdef __extern_always_inline
+# define __fortify_function __extern_always_inline __attribute_artificial__
#endif
/* GCC 4.3 and above allow passing all anonymous arguments of an