cmMakefile: Add filename context to ExpandArguments.

The cmListFileArgument currently stores a FilePath for use in this
method.  The filename is the same as the CMAKE_CURRENT_LIST_FILE,
except if executing a macro or function defined in another file.

Set the context filename when expanding the arguments of macros and
functions using the filename recorded when defining the prototype.

Source/cmFunctionCommand.cxx

@@ -215,7 +215,8 @@ ShouldRemove(const cmListFileFunction& lff, cmMakefile &mf)
   if(!cmSystemTools::Strucmp(lff.Name.c_str(),"endfunction"))
     {
     std::vector<std::string> expandedArguments;
-    mf.ExpandArguments(lff.Arguments, expandedArguments);
+    mf.ExpandArguments(lff.Arguments, expandedArguments,
+                       this->GetStartingContext().FilePath.c_str());
     // if the endfunction has arguments then make sure
     // they match the ones in the opening function command
     if ((expandedArguments.empty() ||

Source/cmMacroCommand.cxx

@@ -251,7 +251,8 @@ ShouldRemove(const cmListFileFunction& lff, cmMakefile &mf)
   if(!cmSystemTools::Strucmp(lff.Name.c_str(),"endmacro"))
     {
     std::vector<std::string> expandedArguments;
-    mf.ExpandArguments(lff.Arguments, expandedArguments);
+    mf.ExpandArguments(lff.Arguments, expandedArguments,
+                       this->GetStartingContext().FilePath.c_str());
     // if the endmacro has arguments make sure they
     // match the arguments of the macro
     if ((expandedArguments.empty() ||

Source/cmMakefile.cxx

@@ -3313,11 +3313,25 @@ bool cmMakefile::IsLoopBlock() const
   return !this->LoopBlockCounter.empty() && this->LoopBlockCounter.top() > 0;
 }
 
+std::string cmMakefile::GetExecutionFilePath() const
+{
+  if (this->CallStack.empty())
+    {
+    return std::string();
+    }
+  return this->CallStack.back().Context->FilePath;
+}
+
 //----------------------------------------------------------------------------
 bool cmMakefile::ExpandArguments(
   std::vector<cmListFileArgument> const& inArgs,
-  std::vector<std::string>& outArgs) const
+  std::vector<std::string>& outArgs, const char* filename) const
 {
+  std::string efp = this->GetExecutionFilePath();
+  if (!filename)
+    {
+    filename = efp.c_str();
+    }
   std::vector<cmListFileArgument>::const_iterator i;
   std::string value;
   outArgs.reserve(inArgs.size());
@@ -3332,8 +3346,7 @@ bool cmMakefile::ExpandArguments(
     // Expand the variables in the argument.
     value = i->Value;
     this->ExpandVariablesInString(value, false, false, false,
-                                  i->FilePath, i->Line,
-                                  false, false);
+                                  filename, i->Line, false, false);
 
     // If the argument is quoted, it should be one argument.
     // Otherwise, it may be a list of arguments.
@@ -3352,8 +3365,13 @@ bool cmMakefile::ExpandArguments(
 //----------------------------------------------------------------------------
 bool cmMakefile::ExpandArguments(
   std::vector<cmListFileArgument> const& inArgs,
-  std::vector<cmExpandedCommandArgument>& outArgs) const
+  std::vector<cmExpandedCommandArgument>& outArgs, const char* filename) const
 {
+  std::string efp = this->GetExecutionFilePath();
+  if (!filename)
+    {
+    filename = efp.c_str();
+    }
   std::vector<cmListFileArgument>::const_iterator i;
   std::string value;
   outArgs.reserve(inArgs.size());
@@ -3368,8 +3386,7 @@ bool cmMakefile::ExpandArguments(
     // Expand the variables in the argument.
     value = i->Value;
     this->ExpandVariablesInString(value, false, false, false,
-                                  i->FilePath, i->Line,
-                                  false, false);
+                                  filename, i->Line, false, false);
 
     // If the argument is quoted, it should be one argument.
     // Otherwise, it may be a list of arguments.

Source/cmMakefile.h

@@ -662,10 +662,12 @@ public:
    * variable replacement and list expansion.
    */
   bool ExpandArguments(std::vector<cmListFileArgument> const& inArgs,
-                       std::vector<std::string>& outArgs) const;
+                       std::vector<std::string>& outArgs,
+                       const char* filename = 0) const;
 
   bool ExpandArguments(std::vector<cmListFileArgument> const& inArgs,
-                       std::vector<cmExpandedCommandArgument>& outArgs) const;
+                       std::vector<cmExpandedCommandArgument>& outArgs,
+                       const char* filename = 0) const;
 
   /**
    * Get the instance
@@ -840,6 +842,8 @@ public:
 
   const char* GetDefineFlagsCMP0059() const;
 
+  std::string GetExecutionFilePath() const;
+
 protected:
   // add link libraries and directories to the target
   void AddGlobalLinkInformation(const std::string& name, cmTarget& target);