Weaken PIE configure test to a compile test.

diff --git a/ChangeLog b/ChangeLog
index ee68357..bc1401b 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2012-05-30  Joseph Myers  <joseph@codesourcery.com>
+
+       * configure.in (libc_cv_fpie): Weaken to a compile test using
+       LIBC_TRY_CC_OPTION.
+       * configure: Regenerated.
+
 2012-05-29  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 
        * sysdeps/unix/sysv/linux/s390/s390-32/nptl/ld.abilist: Refreshed.

diff --git a/configure b/configure
index c92d4a5..4d5d9e4 100755 (executable)
--- a/configure
+++ b/configure
@@ -6490,23 +6490,17 @@ $as_echo_n "checking for -fpie... " >&6; }
 if ${libc_cv_fpie+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat > conftest.c <<EOF
-int foo;
-main () { return 0;}
-EOF
-if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -pie -fpie
-                           -o conftest conftest.c 1>&5'
+  if { ac_try='${CC-cc} -fpie -xc /dev/null -S -o /dev/null'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }
-then
+  test $ac_status = 0; }; }; then :
   libc_cv_fpie=yes
 else
   libc_cv_fpie=no
 fi
-rm -f conftest*
+
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_fpie" >&5
 $as_echo "$libc_cv_fpie" >&6; }

diff --git a/configure.in b/configure.in
index 6fac085..81b14c9 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1618,18 +1618,8 @@ rm -f conftest*])
 AC_SUBST(libc_cv_z_execstack)
 
 AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl
-cat > conftest.c <<EOF
-int foo;
-main () { return 0;}
-EOF
-if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -pie -fpie
-                           -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD])
-then
-  libc_cv_fpie=yes
-else
-  libc_cv_fpie=no
-fi
-rm -f conftest*])
+LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no])
+])
 
 AC_SUBST(libc_cv_fpie)