error_constants.h (posix_errno): Guard not_supported use of ENOTSUP.

2008-02-14  Benjamin Kosnik  <bkoz@redhat.com>

	* config/os/generic/error_constants.h (posix_errno): Guard
	not_supported use of ENOTSUP.
	* acinclude.m4 (GLIBCXX_CHECK_SYSTEM_ERROR): Add check for ENOTSUP
	for OpenBSD.
	* aclocal.m4: Regenerate.
	* configure: Rengerate.
	* config.h.in: Same.

From-SVN: r132319

1 files changed, 65 insertions, 1 deletions

diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index e6d0836..e23e3df 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -17742,6 +17742,70 @@ _ACEOF
 
   fi
 
+  echo "$as_me:$LINENO: checking for ENOTSUP" >&5
+echo $ECHO_N "checking for ENOTSUP... $ECHO_C" >&6
+  if test "${ac_system_error_13+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <errno.h>
+int
+main ()
+{
+ int i = ENOTSUP;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_system_error_13=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_system_error_13=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
+  echo "$as_me:$LINENO: result: $ac_system_error_13" >&5
+echo "${ECHO_T}$ac_system_error_13" >&6
+  if test x"$ac_system_error_13" = x"yes"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_ENOTSUP 1
+_ACEOF
+
+  fi
+
 
 # No surprises, no surprises...
 
@@ -17784,7 +17848,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
   # Fake what AC_TRY_COMPILE does.  XXX Look at redoing this new-style.
     cat > conftest.$ac_ext << EOF
-#line 17787 "configure"
+#line 17851 "configure"
 int main()
 {
   // NB: _Atomic_word not necessarily int.