Pre-compute object file names before Makefile generation

Add a virtual cmGlobalGenerator::ComputeTargetObjects method invoked
during cmGeneratorTarget construction.  Implement it in the Makefile
generator to pre-compute all object file names for each target.  Use
the results during generation instead of re-computing it later.

1 files changed, 32 insertions, 0 deletions

diff --git a/Source/cmGlobalUnixMakefileGenerator3.cxx b/Source/cmGlobalUnixMakefileGenerator3.cxx
index a23c0d8..059692e 100644
--- a/Source/cmGlobalUnixMakefileGenerator3.cxx
+++ b/Source/cmGlobalUnixMakefileGenerator3.cxx
@@ -17,6 +17,7 @@
 #include "cmGeneratedFileStream.h"
 #include "cmSourceFile.h"
 #include "cmTarget.h"
+#include "cmGeneratorTarget.h"
 
 cmGlobalUnixMakefileGenerator3::cmGlobalUnixMakefileGenerator3()
 {
@@ -71,6 +72,37 @@ void cmGlobalUnixMakefileGenerator3
 }
 
 //----------------------------------------------------------------------------
+void
+cmGlobalUnixMakefileGenerator3
+::ComputeTargetObjects(cmGeneratorTarget* gt) const
+{
+  cmTarget* target = gt->Target;
+  cmLocalUnixMakefileGenerator3* lg =
+    static_cast<cmLocalUnixMakefileGenerator3*>(gt->LocalGenerator);
+
+  // Compute full path to object file directory for this target.
+  std::string dir_max;
+  dir_max += gt->Makefile->GetCurrentOutputDirectory();
+  dir_max += "/";
+  dir_max += gt->LocalGenerator->GetTargetDirectory(*target);
+  dir_max += "/";
+
+  // Compute the name of each object file.
+  for(std::vector<cmSourceFile*>::iterator
+        si = gt->ObjectSources.begin();
+      si != gt->ObjectSources.end(); ++si)
+    {
+    cmSourceFile* sf = *si;
+    bool hasSourceExtension = true;
+    std::string objectName = gt->LocalGenerator
+      ->GetObjectFileNameWithoutTarget(*sf, dir_max,
+                                       &hasSourceExtension);
+    gt->Objects[sf] = objectName;
+    lg->AddLocalObjectFile(target, sf, objectName, hasSourceExtension);
+    }
+}
+
+//----------------------------------------------------------------------------
 std::string EscapeJSON(const std::string& s) {
   std::string result;
   for (std::string::size_type i = 0; i < s.size(); ++i) {