diff --git a/Source/cmCableCommand.cxx b/Source/cmCableCommand.cxx
index 03e065666a..396a0fe050 100644
--- a/Source/cmCableCommand.cxx
+++ b/Source/cmCableCommand.cxx
@@ -81,23 +81,23 @@ void cmCableCommand::SetupCableData()
   
   // We must add a custom rule to cause the cable_config.xml to be re-built
   // when it is removed.  Rebuilding it means re-running CMake.
-  std::string cMakeLists = "\"";
-  cMakeLists += m_Makefile->GetStartDirectory();
+  std::string cMakeLists = m_Makefile->GetStartDirectory();
   cMakeLists += "/";
-  cMakeLists += "CMakeLists.txt\"";
+  cMakeLists += "CMakeLists.txt";
 
   std::string command;
 #if defined(_WIN32) && !defined(__CYGWIN__)
   command = "\"";
   command += m_Makefile->GetHomeDirectory();
-  command += "/CMake/Source/CMakeSetupCMD\" ";
+  command += "/CMake/Source/CMakeSetupCMD\" \"";
   command += cMakeLists;
-  command += " -DSP";
+  command += "\" -DSP";
 #else
   command = "\"";
   command += m_Makefile->GetHomeOutputDirectory();  
-  command += "/CMake/Source/CMakeBuildTargets\" ";
+  command += "/CMake/Source/CMakeBuildTargets\" \"";
   command += cMakeLists;
+  command += "\"";
 #endif
   command += " -H\"";
   command += m_Makefile->GetHomeDirectory();
diff --git a/Source/cmDSPMakefile.cxx b/Source/cmDSPMakefile.cxx
index 7a5f60aa82..766908bb06 100644
--- a/Source/cmDSPMakefile.cxx
+++ b/Source/cmDSPMakefile.cxx
@@ -322,7 +322,7 @@ void cmDSPMakefile::WriteCustomRule(std::ostream& fout,
       for(std::set<std::string>::const_iterator d = depends.begin();
           d != depends.end(); ++d)
         {
-        fout << " " << d->c_str();
+        fout << " \"" << d->c_str() << "\"";
         }
       fout << "\n  " << command << "\n\n";
       }
diff --git a/Source/cmDSPWriter.cxx b/Source/cmDSPWriter.cxx
index 7a5f60aa82..766908bb06 100644
--- a/Source/cmDSPWriter.cxx
+++ b/Source/cmDSPWriter.cxx
@@ -322,7 +322,7 @@ void cmDSPMakefile::WriteCustomRule(std::ostream& fout,
       for(std::set<std::string>::const_iterator d = depends.begin();
           d != depends.end(); ++d)
         {
-        fout << " " << d->c_str();
+        fout << " \"" << d->c_str() << "\"";
         }
       fout << "\n  " << command << "\n\n";
       }
diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index a606bb490b..957ee460a5 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -129,6 +129,22 @@ void cmSystemTools::ReplaceString(std::string& source,
     }
 }
 
+
+std::string cmSystemTools::EscapeSpaces(const char* str)
+{
+  std::string result = "";
+  for(const char* ch = str; *ch != '\0'; ++ch)
+    {
+    if(*ch == ' ')
+      {
+      result += '\\';
+      }
+    result += *ch;
+    }
+  return result;
+}
+
+
 // return true if the file exists
 bool cmSystemTools::FileExists(const char* filename)
 {
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index f872a2ccbd..04347fc4e5 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -42,6 +42,12 @@ public:
                             const char* replace,
                             const char* with);
 
+  /**
+   * Return a string equivalent to the input string, but with all " " replaced
+   * with "\ " to escape the spaces.
+   */
+  static std::string EscapeSpaces(const char*);
+  
   /**
    * Replace Windows file system slashes with Unix-style slashes.
    */
diff --git a/Source/cmUnixMakefileGenerator.cxx b/Source/cmUnixMakefileGenerator.cxx
index 012884894e..068d85f37b 100644
--- a/Source/cmUnixMakefileGenerator.cxx
+++ b/Source/cmUnixMakefileGenerator.cxx
@@ -436,7 +436,8 @@ void cmUnixMakefileGenerator::OutputCustomRules(std::ostream& fout)
                 commandFiles.m_Depends.begin();
               d != commandFiles.m_Depends.end(); ++d)
             {
-            fout << " " << d->c_str();
+            std::string dep = cmSystemTools::EscapeSpaces(d->c_str());
+            fout << " " << dep.c_str();
             }
           fout << "\n\t" << command.c_str() << "\n\n";
           }
diff --git a/Source/cmUtilitySourceCommand.cxx b/Source/cmUtilitySourceCommand.cxx
index e098d5d4bc..0cb83ddb3c 100644
--- a/Source/cmUtilitySourceCommand.cxx
+++ b/Source/cmUtilitySourceCommand.cxx
@@ -70,8 +70,8 @@ bool cmUtilitySourceCommand::Invoke(std::vector<std::string>& args)
   
   // Construct the cache entry for the executable's location.
   std::string utilityExecutable =
-    "\""+utilityDirectory+"/"+cmakeCFGout+"/"
-    +utilityName+cmSystemTools::GetExecutableExtension()+"\"";
+    utilityDirectory+"/"+cmakeCFGout+"/"
+    +utilityName+cmSystemTools::GetExecutableExtension();
   
   // Enter the value into the cache.
   cmCacheManager::GetInstance()->AddCacheEntry(cacheEntry.c_str(),