Introduce a cmGlobalGenerator::ResolveLanguageCompiler function

It is factored out of cmGlobalUnixMakefileGenerator3::EnableLanguage,
and may be used by other generators to resolve CMAKE_*_COMPILER
settings.

1 files changed, 1 insertions, 69 deletions

diff --git a/Source/cmGlobalUnixMakefileGenerator3.cxx b/Source/cmGlobalUnixMakefileGenerator3.cxx
index 169d77d..a23c0d8 100644
--- a/Source/cmGlobalUnixMakefileGenerator3.cxx
+++ b/Source/cmGlobalUnixMakefileGenerator3.cxx
@@ -39,7 +39,6 @@ void cmGlobalUnixMakefileGenerator3
                  bool optional)
 {
   this->cmGlobalGenerator::EnableLanguage(languages, mf, optional);
-  std::string path;
   for(std::vector<std::string>::const_iterator l = languages.begin();
       l != languages.end(); ++l)
     {
@@ -47,74 +46,7 @@ void cmGlobalUnixMakefileGenerator3
       {
       continue;
       }
-    const char* lang = l->c_str();
-    std::string langComp = "CMAKE_";
-    langComp += lang;
-    langComp += "_COMPILER";
-
-    if(!mf->GetDefinition(langComp.c_str()))
-      {
-      if(!optional)
-        {
-        cmSystemTools::Error(langComp.c_str(),
-                             " not set, after EnableLanguage");
-        }
-      continue;
-      }
-    const char* name = mf->GetRequiredDefinition(langComp.c_str());
-    if(!cmSystemTools::FileIsFullPath(name))
-      {
-      path = cmSystemTools::FindProgram(name);
-      }
-    else
-      {
-      path = name;
-      }
-    if((path.size() == 0 || !cmSystemTools::FileExists(path.c_str()))
-        && (optional==false))
-      {
-      std::string message = "your ";
-      message += lang;
-      message += " compiler: \"";
-      message +=  name;
-      message += "\" was not found.   Please set ";
-      message += langComp;
-      message += " to a valid compiler path or name.";
-      cmSystemTools::Error(message.c_str());
-      path = name;
-      }
-    std::string doc = lang;
-    doc += " compiler.";
-    const char* cname = this->GetCMakeInstance()->
-      GetCacheManager()->GetCacheValue(langComp.c_str());
-    std::string changeVars;
-    if(cname && (path != cname) && (optional==false))
-      {
-      std::string cnameString = cname;
-      std::string pathString = path;
-      // get rid of potentially multiple slashes:
-      cmSystemTools::ConvertToUnixSlashes(cnameString);
-      cmSystemTools::ConvertToUnixSlashes(pathString);
-      if (cnameString != pathString)
-        {
-        const char* cvars =
-          this->GetCMakeInstance()->GetProperty(
-            "__CMAKE_DELETE_CACHE_CHANGE_VARS_");
-        if(cvars)
-          {
-          changeVars += cvars;
-          changeVars += ";";
-          }
-        changeVars += langComp;
-        changeVars += ";";
-        changeVars += cname;
-        this->GetCMakeInstance()->SetProperty(
-          "__CMAKE_DELETE_CACHE_CHANGE_VARS_",
-          changeVars.c_str());
-        }
-      }
-    mf->AddCacheDefinition(langComp.c_str(), path.c_str(),
-                           doc.c_str(), cmCacheManager::FILEPATH);
+    this->ResolveLanguageCompiler(*l, mf, optional);
     }
 }