2008-03-04 Manuel Lopez-Ibanez <manu@gcc.gnu.org>

	PR 28322
	* opts.c (handle_option): Postpone 'unknown option' errors only for
	warning options.
testsuite/
	* gcc.dg/pr28322-3.c: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@132870 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 38b3b1a..f0425f8 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-03-04  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
+
+       PR 28322
+       * opts.c (handle_option): Postpone 'unknown option' errors only for
+       warning options.
+
 2008-03-04  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR target/35453

diff --git a/gcc/opts.c b/gcc/opts.c
index 445cec3..528c8b8 100644 (file)
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -505,7 +505,7 @@ handle_option (const char **argv, unsigned int lang_mask)
       opt = dup;
       value = 0;
       opt_index = find_opt (opt + 1, lang_mask | CL_COMMON | CL_TARGET);
-      if (opt_index == cl_options_count)
+      if (opt_index == cl_options_count && opt[1] == 'W')
        {
          /* We don't generate errors for unknown -Wno-* options
              unless we issue diagnostics.  */

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 1f364ee..da4f316 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-03-04  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>
+
+       PR 28322
+       * gcc.dg/pr28322-3.c: New.
+
 2008-03-04  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR target/35453

diff --git a/gcc/testsuite/gcc.dg/pr28322-3.c b/gcc/testsuite/gcc.dg/pr28322-3.c
new file mode 100644 (file)
index 0000000..7a5a4c5
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr28322-3.c
@@ -0,0 +1,10 @@
+/* PR28322: ignore unknown -Wno-* if no warning is emitted.  */
+/* { dg-do compile } */
+/* { dg-options " -fno-foobar -mno-foobar" } */
+
+void foo(void)
+{
+  int i =  1;
+}
+/* { dg-message "unrecognized command line option .-fno-foobar." "" { target *-*-* } 0 } */
+/* { dg-message "unrecognized command line option .-mno-foobar." "" { target *-*-* } 0 } */