ENH: CMAKE_<LANG>_LINKER_PREFERENCE is now an integer priority, not a

two-step priority (None or Prefered)
Current order: ASM 0, C 10, Fortran 20, CXX 30, Java 40
This is the same order as automake choses:
http://www.gnu.org/software/automake/manual/html_node/How-the-Linker-is-Chosen.html

This change should be backward compatible:
if there is a project using fortran and CXX, they had to set the
LINKER_LANGUAGE explicitely, otherwise cmake complained (but still generated
the project files). Explicitely setting the linker language still overrides
automatic detection.
If somebody has a custom language for cmake and the PREFERENCE starts with
"P", its changed to 100, which gives it preference over all other languages
(except the other custom languages which have also "Prefered"). "None" is
converted to 0.

Alex

1 files changed, 2 insertions, 2 deletions

diff --git a/Source/cmGlobalGenerator.h b/Source/cmGlobalGenerator.h
index 959945c..ccf00d7 100644
--- a/Source/cmGlobalGenerator.h
+++ b/Source/cmGlobalGenerator.h
@@ -153,7 +153,7 @@ public:
   ///! is an extension to be ignored
   bool IgnoreFile(const char* ext);
   ///! What is the preference for linkers and this language (None or Prefered)
-  const char* GetLinkerPreference(const char* lang);
+  int GetLinkerPreference(const char* lang);
   ///! What is the object file extension for a given source file?
   const char* GetLanguageOutputExtension(cmSourceFile const&);
 
@@ -257,7 +257,7 @@ private:
   std::map<cmStdString, cmStdString> OutputExtensions;
   std::map<cmStdString, cmStdString> LanguageToOutputExtension;
   std::map<cmStdString, cmStdString> ExtensionToLanguage;
-  std::map<cmStdString, cmStdString> LanguageToLinkerPreference; 
+  std::map<cmStdString, int> LanguageToLinkerPreference; 
 
   // this is used to improve performance 
   std::map<cmStdString,cmTarget *> TotalTargets;