cccp.c (main): Check 'dir' for a NULL pointer before passing it to strcmp.

2000-02-04  Neil Booth  <NeilB@earthling.net>

	* cccp.c (main): Check 'dir' for a NULL pointer before passing
	it to strcmp.

From-SVN: r31802

gcc/ChangeLog

+2000-02-04  Neil Booth  <NeilB@earthling.net>
+
+	* cccp.c (main): Check 'dir' for a NULL pointer before passing
+	it to strcmp.
+
 2000-02-04  Zack Weinberg  <zack@wolery.cumb.org>
 
  	* recog.h: Remove NO_MD_PROTOTYPES ifdefs.

gcc/cccp.c

@@ -1715,7 +1715,7 @@ main (argc, argv)
 	  struct file_name_list *dirtmp;
 	  char *dir = argv[i][2] ? argv[i] + 2 : argv[++i];
 
-	  if (! ignore_srcdir && !strcmp (dir, "-")) {
+	  if (! ignore_srcdir && dir && !strcmp (dir, "-")) {
 	    ignore_srcdir = 1;
 	    /* Don't use any preceding -I directories for #include <...>.  */
 	    first_bracket_include = 0;