re PR libgcc/58710 (HAVE_GETIPINFO is incorrectly set on Mac OS X 10.4)

	PR target/58710
	* configure.ac: Use AC_LINK_IFELSE in check for
	_Unwind_GetIPInfo.
	* configure: Regenerate.

From-SVN: r207612

libbacktrace/ChangeLog

+2014-02-07  Misty De Meo  <misty@brew.sh>
+
+	PR target/58710
+	* configure.ac: Use AC_LINK_IFELSE in check for
+	_Unwind_GetIPInfo.
+	* configure: Regenerate.
+
 2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>
 
 	Update copyright years

libbacktrace/Makefile.in

@@ -16,7 +16,7 @@
 @SET_MAKE@
 
 # Makefile.am -- Backtrace Makefile.
-# Copyright (C) 2012-2013 Free Software Foundation, Inc.
+# Copyright (C) 2012-2014 Free Software Foundation, Inc.
 
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are

libbacktrace/configure

@@ -11675,12 +11675,13 @@ return _Unwind_GetIPInfo (context, &ip_before_insn);
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_c_try_link "$LINENO"; then :
   have_unwind_getipinfo=yes
 else
   have_unwind_getipinfo=no
 fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
   CFLAGS="$ac_save_CFLAGS"
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_unwind_getipinfo" >&5
 $as_echo "$have_unwind_getipinfo" >&6; }

libbacktrace/configure.ac

@@ -144,7 +144,7 @@ else
   ac_save_CFFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
   AC_MSG_CHECKING([for _Unwind_GetIPInfo])
-  AC_COMPILE_IFELSE(
+  AC_LINK_IFELSE(
     [AC_LANG_PROGRAM(
        [#include "unwind.h"
 	struct _Unwind_Context *context;