Suppress the "unused function" warning for select_strerror_r

We only ever use one of the two overloads, so to avoid breaking -Werror
builds, supress the warning.

gdb/ChangeLog:

2019-12-10  Christian Biesinger  <cbiesinger@google.com>

	* gdbsupport/safe-strerror.c: Supress the unused function warning
	for select_strerror_r.

Change-Id: I344869a382bb36fe181b5b2a31838d1d20f58169

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a6e299d905311be670c093bc8b82b515cb1d2309..c4e8109b7c5b17debb738726e59fbb3cc074cc6e 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2019-12-10  Christian Biesinger  <cbiesinger@google.com>
+
+       * gdbsupport/safe-strerror.c: Supress the unused function warning
+       for select_strerror_r.
+
 2019-12-10  Christian Biesinger  <cbiesinger@google.com>
 
        * config.in: Regenerate.

diff --git a/gdb/gdbsupport/safe-strerror.c b/gdb/gdbsupport/safe-strerror.c
index 7425af590f789c1625013c9dc51b505a324ad7fd..9973fa678577c3ff1d9188a6679a0c8cecfd5d26 100644 (file)
--- a/gdb/gdbsupport/safe-strerror.c
+++ b/gdb/gdbsupport/safe-strerror.c
@@ -18,6 +18,7 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "common-defs.h"
+#include "diagnostics.h"
 #include <string.h>
 
 /* There are two different versions of strerror_r; one is GNU-specific, the
@@ -26,6 +27,11 @@
    to solve this for us because IPA does not use Gnulib but uses this
    function.  */
 
+/* We only ever use one of the two overloads, so suppress the warning for
+   an unused function.  */
+DIAGNOSTIC_PUSH
+DIAGNOSTIC_IGNORE_UNUSED_FUNCTION
+
 /* Called if we have a XSI-compliant strerror_r.  */
 static char *
 select_strerror_r (int res, char *buf)
@@ -40,6 +46,8 @@ select_strerror_r (char *res, char *)
   return res;
 }
 
+DIAGNOSTIC_POP
+
 /* Implementation of safe_strerror as defined in common-utils.h.  */
 
 const char *