Add ability to include a file in a project via a cache variable.

If a variable exists called CMAKE_PROJECT_<projectName>_INCLUDE,
the file pointed to by that variable will be included as the last step
of the project command.

2 files changed, 22 insertions, 1 deletions

diff --git a/Source/cmProjectCommand.cxx b/Source/cmProjectCommand.cxx
index 6e3b6af..4c1abcf 100644
--- a/Source/cmProjectCommand.cxx
+++ b/Source/cmProjectCommand.cxx
@@ -77,6 +77,24 @@ bool cmProjectCommand
     languages.push_back("CXX");
     }
   this->Makefile->EnableLanguage(languages, false);
+  std::string extraInclude = "CMAKE_PROJECT_" + args[0] + "_INCLUDE";
+  const char* include = this->Makefile->GetDefinition(extraInclude.c_str());
+  if(include)
+    {
+    std::string fullFilePath;
+    bool readit =
+      this->Makefile->ReadListFile( this->Makefile->GetCurrentListFile(),
+                                    include);
+    if(!readit && !cmSystemTools::GetFatalErrorOccured())
+      {
+      std::string m =
+        "could not find load file:\n"
+        "  ";
+      m += include;
+      this->SetError(m.c_str());
+      return false;
+      }
+    }
   return true;
 }
 
diff --git a/Source/cmProjectCommand.h b/Source/cmProjectCommand.h
index fc2b7a2..1e5fc09 100644
--- a/Source/cmProjectCommand.h
+++ b/Source/cmProjectCommand.h
@@ -68,7 +68,10 @@ public:
       "By default C and CXX are enabled.  E.g. if you do not have a "
       "C++ compiler, you can disable the check for it by explicitly listing "
       "the languages you want to support, e.g. C.  By using the special "
-      "language \"NONE\" all checks for any language can be disabled.";
+      "language \"NONE\" all checks for any language can be disabled. "
+      "If a variable exists called CMAKE_PROJECT_<projectName>_INCLUDE_FILE, "
+      "the file pointed to by that variable will be included as the last step "
+      "of the project command.";
     }
   
   cmTypeMacro(cmProjectCommand, cmCommand);