diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e74ee16fbd7..3734528f6b0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+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.
diff --git a/gcc/cccp.c b/gcc/cccp.c
index 8771d0d3844..7f2f58483c0 100644
--- a/gcc/cccp.c
+++ b/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;