ENH: Added SYMBOLIC source file property to mark custom command outputs that are never actually created on disk. This is used by the Watcom WMake generator to generate the .SYMBOLIC mark on the files in the make system.

1 files changed, 23 insertions, 2 deletions

diff --git a/Source/cmMakefileTargetGenerator.cxx b/Source/cmMakefileTargetGenerator.cxx
index cc16069..449d37a 100644
--- a/Source/cmMakefileTargetGenerator.cxx
+++ b/Source/cmMakefileTargetGenerator.cxx
@@ -862,12 +862,25 @@ void cmMakefileTargetGenerator
   std::vector<std::string> depends;
   this->LocalGenerator->AppendCustomDepend(depends, cc);
 
+  // Check whether we need to bother checking for a symbolic output.
+  bool need_symbolic = this->GlobalGenerator->GetNeedSymbolicMark();
+
   // Write the rule.
   const std::vector<std::string>& outputs = cc.GetOutputs();
   std::vector<std::string>::const_iterator o = outputs.begin();
+  {
+  bool symbolic = false;
+  if(need_symbolic)
+    {
+    if(cmSourceFile* sf = this->Makefile->GetSource(o->c_str()))
+      {
+      symbolic = sf->GetPropertyAsBool("SYMBOLIC");
+      }
+    }
   this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, 0,
                                       o->c_str(), depends, commands,
-                                      false);
+                                      symbolic);
+  }
 
   // If the rule has multiple outputs, add a rule for the extra
   // outputs to just depend on the first output with no command.  Also
@@ -887,9 +900,17 @@ void cmMakefileTargetGenerator
     }
   for(++o; o != outputs.end(); ++o)
     {
+    bool symbolic = false;
+    if(need_symbolic)
+      {
+      if(cmSourceFile* sf = this->Makefile->GetSource(o->c_str()))
+        {
+        symbolic = sf->GetPropertyAsBool("SYMBOLIC");
+        }
+      }
     this->LocalGenerator->WriteMakeRule(*this->BuildFileStream, 0,
                                         o->c_str(), depends, commands,
-                                        false);
+                                        symbolic);
     gg->AddMultipleOutputPair(o->c_str(), depends[0].c_str());
     }
 }