ENH: Added support for multiple outputs generated by a single custom command. For Visual Studio generators the native tool provides support. For Xcode and Makefile generators a simple trick is used. The first output is considered primary and has the build rule attached. Other outputs simply depend on the first output with no build rule. During cmake_check_build_system CMake detects when a secondary output is missing and removes the primary output to make sure all outputs are regenerated. This approach always builds the custom command at the right time and only once even during parallel builds.

1 files changed, 3 insertions, 3 deletions

diff --git a/Source/cmCustomCommand.h b/Source/cmCustomCommand.h
index a33f123..4fc300c 100644
--- a/Source/cmCustomCommand.h
+++ b/Source/cmCustomCommand.h
@@ -32,14 +32,14 @@ public:
   cmCustomCommand(const cmCustomCommand& r);
 
   /** Main constructor specifies all information for the command.  */
-  cmCustomCommand(const char* output,
+  cmCustomCommand(const std::vector<std::string>& outputs,
                   const std::vector<std::string>& depends,
                   const cmCustomCommandLines& commandLines,
                   const char* comment,
                   const char* workingDirectory);
 
   /** Get the output file produced by the command.  */
-  const char* GetOutput() const;
+  const std::vector<std::string>& GetOutputs() const;
 
   /** Get the working directory.  */
   const char* GetWorkingDirectory() const;
@@ -58,7 +58,7 @@ public:
   bool IsUsed() { return this->Used;};
  
 private:
-  std::string Output;
+  std::vector<std::string> Outputs;
   std::vector<std::string> Depends;
   cmCustomCommandLines CommandLines;
   std::string Comment;