re PR target/37610 (FAIL: g++.dg/eh/pr29166.C execution test)

	PR target/37610
	* configure.ac (gcc_cv_as_cfi_advance_working): Fall back to 'no'
	if readelf is nowhere to be found.
	* configure: Regenerate.

From-SVN: r142850

gcc/ChangeLog

+2008-12-20  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR target/37610
+	* configure.ac (gcc_cv_as_cfi_advance_working): Fall back to 'no'
+	if readelf is nowhere to be found.
+	* configure: Regenerate.
+
 2008-12-19  Andrew Haley  <aph@redhat.com>
 
 	* builtins.c, tree-ssa-loop-ivopts.c, fixed-value.c:

gcc/configure

@@ -21628,7 +21628,8 @@ echo "$as_me:$LINENO: result: $gcc_cv_as_cfi_advance_working" >&5
 echo "${ECHO_T}$gcc_cv_as_cfi_advance_working" >&6
 
 else
-  gcc_cv_as_cfi_advance_working=yes
+  # no readelf, err on the side of caution
+  gcc_cv_as_cfi_advance_working=no
 fi
 
 cat >>confdefs.h <<_ACEOF

gcc/configure.ac

@@ -2278,7 +2278,8 @@ fi
 changequote([,])dnl
 ])
 else
-  gcc_cv_as_cfi_advance_working=yes
+  # no readelf, err on the side of caution
+  gcc_cv_as_cfi_advance_working=no
 fi
 AC_DEFINE_UNQUOTED(HAVE_GAS_CFI_DIRECTIVE,
   [`if test $gcc_cv_as_cfi_directive = yes \