Fix -Wundef warnings for _ABI* on MIPS.

This patch fixes -Wundef warnings related to the _ABI* macros on MIPS.
GCC predefines only the _ABI* macro related to the ABI actually in
use, meaning that a conditional such as "#if _MIPS_SIM == _ABI64" is
true only for the ABI in question (all the macros are nonzero), but
produces a -Wundef warning for the other ABIs.  The normal approach to
using these macros is to include <sgidefs.h>, which ensures that all
three _ABI* macros are defined rather than just one; this patch does
so in the places that caused warnings (the bulk of the warnings
arising from <bits/wordsize.h>).  Tested that the warnings are fixed.

	* sysdeps/mips/bits/wordsize.h: Include <sgidefs.h>.
	* sysdeps/unix/sysv/linux/mips/getrlimit64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/setrlimit64.c: Likewise.

diff --git a/ChangeLog b/ChangeLog
index e360149..720183f 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2014-03-21  Joseph Myers  <joseph@codesourcery.com>
 
+       * sysdeps/mips/bits/wordsize.h: Include <sgidefs.h>.
+       * sysdeps/unix/sysv/linux/mips/getrlimit64.c: Likewise.
+       * sysdeps/unix/sysv/linux/mips/setrlimit64.c: Likewise.
+
        [BZ #16731]
        * sysdeps/i386/fpu/e_log.S (__ieee754_log): Take absolute value
        when x - 1 is zero.

diff --git a/sysdeps/mips/bits/wordsize.h b/sysdeps/mips/bits/wordsize.h
index 3f05c7d..2c29d81 100644 (file)
--- a/sysdeps/mips/bits/wordsize.h
+++ b/sysdeps/mips/bits/wordsize.h
@@ -15,6 +15,8 @@
    License along with the GNU C Library.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
+#include <sgidefs.h>
+
 #define __WORDSIZE     _MIPS_SZPTR
 #if _MIPS_SIM == _ABI64
 # define __WORDSIZE_TIME64_COMPAT32    1

diff --git a/sysdeps/unix/sysv/linux/mips/getrlimit64.c b/sysdeps/unix/sysv/linux/mips/getrlimit64.c
index f3b3331..b4a449b 100644 (file)
--- a/sysdeps/unix/sysv/linux/mips/getrlimit64.c
+++ b/sysdeps/unix/sysv/linux/mips/getrlimit64.c
@@ -15,6 +15,8 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#include <sgidefs.h>
+
 #if _MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIN32
 
 # include <shlib-compat.h>

diff --git a/sysdeps/unix/sysv/linux/mips/setrlimit64.c b/sysdeps/unix/sysv/linux/mips/setrlimit64.c
index 73d6095..26bf138 100644 (file)
--- a/sysdeps/unix/sysv/linux/mips/setrlimit64.c
+++ b/sysdeps/unix/sysv/linux/mips/setrlimit64.c
@@ -15,6 +15,7 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#include <sgidefs.h>
 
 #if _MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIN32