Factor out custom command .rule file path generation

Add cmGlobalGenerator::GenerateRuleFile to compute a generator-specific
rule file location.  This will allow specific generators to override the
location of .rule files without changing the behavior of other
generators.

1 files changed, 4 insertions, 10 deletions

diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index f2865f6..17bb5ed 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -948,17 +948,11 @@ cmMakefile::AddCustomCommandToOutput(const std::vector<std::string>& outputs,
   // Generate a rule file if the main dependency is not available.
   if(!file)
     {
+    cmGlobalGenerator* gg = this->LocalGenerator->GetGlobalGenerator();
+
     // Construct a rule file associated with the first output produced.
-    std::string outName = outputs[0];
-    outName += ".rule";
-    const char* dir =
-      this->LocalGenerator->GetGlobalGenerator()->
-      GetCMakeCFGIntDir();
-    if(dir && dir[0] == '$')
-      {
-      cmSystemTools::ReplaceString(outName, dir,
-                                   cmake::GetCMakeFilesDirectory());
-      }
+    std::string outName = gg->GenerateRuleFile(outputs[0]);
+
     // Check if the rule file already exists.
     file = this->GetSource(outName.c_str());
     if(file && file->GetCustomCommand() && !replace)