From 121fa374a9f7361dfc6b0c726943251da7df4d71 Mon Sep 17 00:00:00 2001
From: Ken Martin <ken.martin@kitware.com>
Date: Mon, 27 Jun 2005 15:59:16 -0400
Subject: [PATCH] BUG: dont pass unverified char * to streams

---
 Source/cmMakefile.cxx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index ba57c3e5b..6eeefca82 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -1401,8 +1401,10 @@ const char *cmMakefile::ExpandVariablesInString(std::string& source,
       {
       cmOStringStream error;
       error << "Syntax error in cmake code at\n"
-        << filename << ":" << line << ":\n"
-        << parser.GetError() << ", when parsing string \"" << source.c_str() << "\"";
+            << (filename?filename:"(no filename given)") 
+            << ":" << line << ":\n"
+            << parser.GetError() << ", when parsing string \"" 
+            << source.c_str() << "\"";
       const char* versionValue
         = this->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
       int major = 0;