Weaken two NPTL configure link tests to compile tests.

4 files changed, 32 insertions, 33 deletions

diff --git a/NEWS b/NEWS
index 180aec41c9..9e94458a8e 100644
--- a/NEWS
+++ b/NEWS
@@ -11,10 +11,10 @@ Version 2.16
 
   174, 350, 411, 2541, 2547, 2548, 3335, 3976, 3992, 4026, 4108, 4596, 4822,
   5077, 5461, 5805, 5993, 6884, 6907, 9739, 9902, 10110, 10135, 10140,
-  10210, 10716, 11174, 11322, 11365, 11494, 12047, 13058, 13525, 13526,
-  13527, 13528, 13529, 13530, 13531, 13532, 13533, 13547, 13551, 13552,
-  13553, 13555, 13559, 13583, 13618, 13637, 13656, 13695, 13704, 13706,
-  13726, 13738, 13786, 13792
+  10210, 10545, 10716, 11174, 11322, 11365, 11494, 12047, 13058, 13525,
+  13526, 13527, 13528, 13529, 13530, 13531, 13532, 13533, 13547, 13551,
+  13552, 13553, 13555, 13559, 13583, 13618, 13637, 13656, 13695, 13704,
+  13706, 13726, 13738, 13786, 13792
 
 * ISO C11 support:
 
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index eb2e38daf9..dd6f334a3d 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,12 @@
+2012-03-07  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #10545]
+	* sysdeps/pthread/configure.in (libc_cv_forced_unwind): Change
+	link test to a compile test.
+	(libc_cv_c_cleanup): Likewise.  Declare puts rather than including
+	<stdio.h>.
+	* sysdeps/pthread/configure: Regenerated.
+
 2012-03-07  Ulrich Drepper  <drepper@gmail.com>
 
 	* Makefile (distribute): Remove variable.
diff --git a/nptl/sysdeps/pthread/configure b/nptl/sysdeps/pthread/configure
index 6b3c79b8f4..221ce9bbb1 100644
--- a/nptl/sysdeps/pthread/configure
+++ b/nptl/sysdeps/pthread/configure
@@ -81,21 +81,21 @@ $as_echo X/"$0" |
 }
 
 
-# ac_fn_c_try_link LINENO
-# -----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_link ()
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest$ac_exeext
-  if { { ac_try="$ac_link"
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
 eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
 $as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_link") 2>conftest.err
+  (eval "$ac_compile") 2>conftest.err
   ac_status=$?
   if test -s conftest.err; then
     grep -v '^ *+' conftest.err >conftest.er1
@@ -106,10 +106,7 @@ $as_echo "$ac_try_echo"; } >&5
   test $ac_status = 0; } && {
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then :
+       } && test -s conftest.$ac_objext; then :
   ac_retval=0
 else
   $as_echo "$as_me: failed program was:" >&5
@@ -117,15 +114,10 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 	ac_retval=1
 fi
-  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
-  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
-  # interfere with the next link command; also delete a directory that is
-  # left behind by Apple's compiler.  We do this before executing the actions.
-  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
   eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
-} # ac_fn_c_try_link
+} # ac_fn_c_try_compile
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
 
 if test "x$libc_cv_gcc___thread" != xyes; then
@@ -165,13 +157,12 @@ _Unwind_GetCFA (context)
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"; then :
   libc_cv_forced_unwind=yes
 else
   libc_cv_forced_unwind=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_forced_unwind" >&5
 $as_echo "$libc_cv_forced_unwind" >&6; }
@@ -188,25 +179,24 @@ else
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-#include <stdio.h>
+extern void some_function (void);
 void cl (void *a) { }
 int
 main ()
 {
 
   int a __attribute__ ((cleanup (cl)));
-  puts ("test")
+  some_function ()
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_c_try_compile "$LINENO"; then :
   libc_cv_c_cleanup=yes
 else
   libc_cv_c_cleanup=no
 fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_c_cleanup" >&5
 $as_echo "$libc_cv_c_cleanup" >&6; }
diff --git a/nptl/sysdeps/pthread/configure.in b/nptl/sysdeps/pthread/configure.in
index 17f18f0fbf..413af96799 100644
--- a/nptl/sysdeps/pthread/configure.in
+++ b/nptl/sysdeps/pthread/configure.in
@@ -23,7 +23,7 @@ dnl Iff <unwind.h> is available, make sure it is the right one and it
 dnl contains struct _Unwind_Exception.
 AC_CACHE_CHECK(dnl
 for forced unwind support, libc_cv_forced_unwind, [dnl
-AC_TRY_LINK([#include <unwind.h>], [
+AC_TRY_COMPILE([#include <unwind.h>], [
 struct _Unwind_Exception exc;
 struct _Unwind_Context *context;
 _Unwind_GetCFA (context)],
@@ -34,11 +34,11 @@ dnl Check for C cleanup handling.
   old_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -Werror -fexceptions"
   AC_CACHE_CHECK([for C cleanup handling], libc_cv_c_cleanup, [dnl
-  AC_TRY_LINK([
-#include <stdio.h>
+  AC_TRY_COMPILE([
+extern void some_function (void);
 void cl (void *a) { }], [
   int a __attribute__ ((cleanup (cl)));
-  puts ("test")],
+  some_function ()],
 libc_cv_c_cleanup=yes, libc_cv_c_cleanup=no)])
   CFLAGS="$old_CFLAGS"
   if test $libc_cv_c_cleanup = no; then