1 files changed, 112 insertions, 3 deletions

diff --git a/Source/cmBuildCommand.cxx b/Source/cmBuildCommand.cxx
index b9ce561..3722ab6 100644
--- a/Source/cmBuildCommand.cxx
+++ b/Source/cmBuildCommand.cxx
@@ -14,25 +14,135 @@
 #include "cmLocalGenerator.h"
 #include "cmGlobalGenerator.h"
 
-// cmBuildCommand
+//----------------------------------------------------------------------
 bool cmBuildCommand
 ::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
 {
+  // Support the legacy signature of the command:
+  //
+  if(2 == args.size())
+    {
+    return this->TwoArgsSignature(args);
+    }
+
+  return this->MainSignature(args);
+}
+
+//----------------------------------------------------------------------
+bool cmBuildCommand
+::MainSignature(std::vector<std::string> const& args)
+{
+  if(args.size() < 1)
+    {
+    this->SetError("requires at least one argument naming a CMake variable");
+    return false;
+    }
+
+  // The cmake variable in which to store the result.
+  const char* variable = args[0].c_str();
+
+  // Parse remaining arguments.
+  const char* configuration = 0;
+  const char* project_name = 0;
+  const char* target = 0;
+  enum Doing { DoingNone, DoingConfiguration, DoingProjectName, DoingTarget };
+  Doing doing = DoingNone;
+  for(unsigned int i=1; i < args.size(); ++i)
+    {
+    if(args[i] == "CONFIGURATION")
+      {
+      doing = DoingConfiguration;
+      }
+    else if(args[i] == "PROJECT_NAME")
+      {
+      doing = DoingProjectName;
+      }
+    else if(args[i] == "TARGET")
+      {
+      doing = DoingTarget;
+      }
+    else if(doing == DoingConfiguration)
+      {
+      doing = DoingNone;
+      configuration = args[i].c_str();
+      }
+    else if(doing == DoingProjectName)
+      {
+      doing = DoingNone;
+      project_name = args[i].c_str();
+      }
+    else if(doing == DoingTarget)
+      {
+      doing = DoingNone;
+      target = args[i].c_str();
+      }
+    else
+      {
+      cmOStringStream e;
+      e << "unknown argument \"" << args[i] << "\"";
+      this->SetError(e.str().c_str());
+      return false;
+      }
+    }
+
+  const char* makeprogram
+    = this->Makefile->GetDefinition("CMAKE_MAKE_PROGRAM");
+
+  // If null/empty CONFIGURATION argument, GenerateBuildCommand uses 'Debug'
+  // in the currently implemented multi-configuration global generators...
+  // so we put this code here to end up with the same default configuration
+  // as the original 2-arg build_command signature:
+  //
+  if(!configuration || !*configuration)
+    {
+    configuration = getenv("CMAKE_CONFIG_TYPE");
+    }
+  if(!configuration || !*configuration)
+    {
+    configuration = "Release";
+    }
+
+  // If null/empty PROJECT_NAME argument, use the Makefile's project name:
+  //
+  if(!project_name || !*project_name)
+    {
+    project_name = this->Makefile->GetProjectName();
+    }
+
+  // If null/empty TARGET argument, GenerateBuildCommand omits any mention
+  // of a target name on the build command line...
+  //
+  std::string makecommand = this->Makefile->GetLocalGenerator()
+    ->GetGlobalGenerator()->GenerateBuildCommand
+    (makeprogram, project_name, 0, target, configuration, true, false);
+
+  this->Makefile->AddDefinition(variable, makecommand.c_str());
+
+  return true;
+}
+
+//----------------------------------------------------------------------
+bool cmBuildCommand
+::TwoArgsSignature(std::vector<std::string> const& args)
+{
   if(args.size() < 2 )
     {
-    this->SetError("called with incorrect number of arguments");
+    this->SetError("called with less than two arguments");
     return false;
     }
+
   const char* define = args[0].c_str();
   const char* cacheValue
     = this->Makefile->GetDefinition(define);
   std::string makeprogram = args[1];
+
   std::string configType = "Release";
   const char* cfg = getenv("CMAKE_CONFIG_TYPE");
   if ( cfg )
     {
     configType = cfg;
     }
+
   std::string makecommand = this->Makefile->GetLocalGenerator()
     ->GetGlobalGenerator()->GenerateBuildCommand
     (makeprogram.c_str(), this->Makefile->GetProjectName(), 0,
@@ -49,4 +159,3 @@ bool cmBuildCommand
                                  cmCacheManager::STRING);
   return true;
 }
-