From: bje <bje@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 19 Nov 2009 21:16:45 +0000 (+0000)
Subject: 	* pex-unix.c (pex_child_error): Define writeerr macro to avoid
X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=12ac5344274cfcf1e8010b5168ae80c3565627da

	* pex-unix.c (pex_child_error): Define writeerr macro to avoid
	unused result warnings from write(3) calls.  Undefine writeerr
	after all uses.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@154344 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 05e594e7cf0..fbc03fe83a9 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,9 @@
+2009-11-20  Ben Elliston  <bje@au.ibm.com>
+
+	* pex-unix.c (pex_child_error): Define writeerr macro to avoid
+	unused result warnings from write(3) calls.  Undefine writeerr
+	after all uses.
+
 2009-10-08  Daniel Gutson  <dgutson@codesourcery.com>
 	Daniel Jacobowitz  <dan@codesourcery.com>
 	Pedro Alves  <pedro@codesourcery.com>
diff --git a/libiberty/pex-unix.c b/libiberty/pex-unix.c
index baf2bb4995b..3753812b314 100644
--- a/libiberty/pex-unix.c
+++ b/libiberty/pex-unix.c
@@ -368,7 +368,7 @@ static void
 pex_child_error (struct pex_obj *obj, const char *executable,
 		 const char *errmsg, int err)
 {
-#define writeerr(s) (void) write (STDERR_FILE_NO, s, strlen (s))
+#define writeerr(s) if (write (STDERR_FILE_NO, s, strlen (s))) {}
   writeerr (obj->pname);
   writeerr (": error trying to exec '");
   writeerr (executable);
@@ -377,6 +377,7 @@ pex_child_error (struct pex_obj *obj, const char *executable,
   writeerr (": ");
   writeerr (xstrerror (err));
   writeerr ("\n");
+#undef writeerr
   _exit (-1);
 }