Fix problem reported by Dan Berlin on gcc list.

* c-opt.c (c_common_post_options): If this_input_filename is NULL,
increment errorcount and return false instead of true.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@80678 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 5 insertions, 1 deletions

diff --git a/gcc/c-opts.c b/gcc/c-opts.c
index 7aa21c4458f..c63913671fb 100644
--- a/gcc/c-opts.c
+++ b/gcc/c-opts.c
@@ -1171,8 +1171,12 @@ c_common_post_options (const char **pfilename)
 
   *pfilename = this_input_filename
     = cpp_read_main_file (parse_in, in_fnames[0]);
+  /* Don't do any compilation or preprocessing if there is no input file.  */
   if (this_input_filename == NULL)
-    return true;
+    {
+      errorcount++;
+      return false;
+    }
 
   if (flag_working_directory
       && flag_preprocess_only && ! flag_no_line_commands)