Add the target_compile_definitions command.

This is a convenience API to populate the corresponding properties.

Source/cmCommands.cxx

@@ -28,6 +28,7 @@
 #include "cmRemoveDefinitionsCommand.cxx"
 #include "cmSourceGroupCommand.cxx"
 #include "cmSubdirDependsCommand.cxx"
+#include "cmTargetCompileDefinitionsCommand.cxx"
 #include "cmTargetIncludeDirectoriesCommand.cxx"
 #include "cmTargetPropCommandBase.cxx"
 #include "cmUseMangledMesaCommand.cxx"
@@ -69,6 +70,7 @@ void GetPredefinedCommands(std::list<cmCommand*>&
   commands.push_back(new cmSourceGroupCommand);
   commands.push_back(new cmSubdirDependsCommand);
   commands.push_back(new cmTargetIncludeDirectoriesCommand);
+  commands.push_back(new cmTargetCompileDefinitionsCommand);
   commands.push_back(new cmUseMangledMesaCommand);
   commands.push_back(new cmUtilitySourceCommand);
   commands.push_back(new cmVariableRequiresCommand);

Source/cmTargetCompileDefinitionsCommand.cxx

@@ -0,0 +1,57 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2013 Stephen Kelly <steveire@gmail.com>
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+#include "cmTargetCompileDefinitionsCommand.h"
+
+#include "cmMakefileIncludeDirectoriesEntry.h"
+
+bool cmTargetCompileDefinitionsCommand
+::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
+{
+  return this->HandleArguments(args, "COMPILE_DEFINITIONS");
+}
+
+void cmTargetCompileDefinitionsCommand
+::HandleImportedTargetInvalidScope(const std::string &scope,
+                                   const std::string &tgt)
+{
+  cmOStringStream e;
+  e << "Cannot specify " << scope << " compile definitions for imported "
+       "target \"" << tgt << "\".  Compile definitions can only be "
+       "specified for an imported target in the INTERFACE mode.";
+  this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+}
+
+void cmTargetCompileDefinitionsCommand
+::HandleMissingTarget(const std::string &name)
+{
+  cmOStringStream e;
+  e << "Cannot specify compile definitions for target \"" << name << "\" "
+       "which is not built by this project.";
+  this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+}
+
+bool cmTargetCompileDefinitionsCommand
+::HandleNonTargetArg(std::string &content,
+                   const std::string &sep,
+                   const std::string &entry,
+                   const std::string &)
+{
+  content += sep + entry;
+  return true;
+}
+
+void cmTargetCompileDefinitionsCommand
+::HandleDirectContent(cmTarget *tgt, const std::string &content,
+                                   bool)
+{
+  tgt->AppendProperty("COMPILE_DEFINITIONS", content.c_str());
+}

Source/cmTargetCompileDefinitionsCommand.h

@@ -0,0 +1,91 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2013 Stephen Kelly <steveire@gmail.com>
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+
+#ifndef cmTargetCompileDefinitionsCommand_h
+#define cmTargetCompileDefinitionsCommand_h
+
+#include "cmTargetPropCommandBase.h"
+
+class cmTargetCompileDefinitionsCommand : public cmTargetPropCommandBase
+{
+public:
+  /**
+   * This is a virtual constructor for the command.
+   */
+  virtual cmCommand* Clone()
+    {
+    return new cmTargetCompileDefinitionsCommand;
+    }
+
+  /**
+   * This is called when the command is first encountered in
+   * the CMakeLists.txt file.
+   */
+  virtual bool InitialPass(std::vector<std::string> const& args,
+                           cmExecutionStatus &status);
+
+  /**
+   * The name of the command as specified in CMakeList.txt.
+   */
+  virtual const char* GetName() const { return "target_compile_definitions";}
+
+  /**
+   * Succinct documentation.
+   */
+  virtual const char* GetTerseDocumentation() const
+    {
+    return
+      "Add compile definitions to a target.";
+    }
+
+  /**
+   * More documentation.
+   */
+  virtual const char* GetFullDocumentation() const
+    {
+    return
+      "  target_compile_definitions(<target> "
+      "<INTERFACE|PUBLIC|PRIVATE> [items1...]\n"
+      "    [<INTERFACE|PUBLIC|PRIVATE> [items2...] ...])\n"
+      "Specify compile definitions or targets to use when compiling a given "
+      "target.  "
+      "The named <target> must have been created by a command such as "
+      "add_executable or add_library.  "
+      "The INTERFACE, PUBLIC and PRIVATE keywords are required to specify "
+      "the scope of the following arguments.  PRIVATE and PUBLIC items will "
+      "populate the COMPILE_DEFINITIONS property of <target>.  PUBLIC and "
+      "INTERFACE items will populate the INTERFACE_COMPILE_DEFINITIONS "
+      "property of <target>.   "
+      "The non-scope arguments specify compile definitions or targets to use "
+      "INTERFACE_COMPILE_DEFINITIONS from.  "
+      "Repeated calls for the same <target> append items in the order called."
+      "\n"
+      ;
+    }
+
+  cmTypeMacro(cmTargetCompileDefinitionsCommand, cmCommand);
+
+private:
+  virtual void HandleImportedTargetInvalidScope(const std::string &scope,
+                                   const std::string &tgt);
+  virtual void HandleMissingTarget(const std::string &name);
+
+  virtual bool HandleNonTargetArg(std::string &content,
+                          const std::string &sep,
+                          const std::string &entry,
+                          const std::string &tgt);
+
+  virtual void HandleDirectContent(cmTarget *tgt, const std::string &content,
+                                   bool prepend);
+};
+
+#endif

Tests/CMakeCommands/target_compile_definitions/CMakeLists.txt

@@ -0,0 +1,26 @@
+
+cmake_minimum_required(VERSION 2.8)
+
+project(target_compile_definitions)
+
+add_executable(target_compile_definitions
+  "${CMAKE_CURRENT_SOURCE_DIR}/main.cpp"
+)
+target_compile_definitions(target_compile_definitions
+  PRIVATE MY_PRIVATE_DEFINE
+  PUBLIC MY_PUBLIC_DEFINE
+  INTERFACE MY_INTERFACE_DEFINE
+)
+
+add_library(importedlib UNKNOWN IMPORTED)
+target_compile_definitions(importedlib
+  INTERFACE MY_IMPORTEDINTERFACE_DEFINE
+)
+
+add_executable(consumer
+  "${CMAKE_CURRENT_SOURCE_DIR}/consumer.cpp"
+)
+
+target_compile_definitions(consumer
+  PRIVATE target_compile_definitions importedlib
+)

Tests/CMakeCommands/target_compile_definitions/consumer.cpp

@@ -0,0 +1,18 @@
+
+#ifdef MY_PRIVATE_DEFINE
+#error Unexpected MY_PRIVATE_DEFINE
+#endif
+
+#ifndef MY_PUBLIC_DEFINE
+#error Expected MY_PUBLIC_DEFINE
+#endif
+
+#ifndef MY_INTERFACE_DEFINE
+#error Expected MY_INTERFACE_DEFINE
+#endif
+
+#ifndef MY_IMPORTEDINTERFACE_DEFINE
+#error Expected MY_IMPORTEDINTERFACE_DEFINE
+#endif
+
+int main() { return 0; }

Tests/CMakeCommands/target_compile_definitions/main.cpp

@@ -0,0 +1,14 @@
+
+#ifndef MY_PRIVATE_DEFINE
+#error Expected MY_PRIVATE_DEFINE
+#endif
+
+#ifndef MY_PUBLIC_DEFINE
+#error Expected MY_PUBLIC_DEFINE
+#endif
+
+#ifdef MY_INTERFACE_DEFINE
+#error Unexpected MY_INTERFACE_DEFINE
+#endif
+
+int main() { return 0; }

Tests/CMakeLists.txt

@@ -1931,6 +1931,7 @@ ${CMake_BINARY_DIR}/bin/cmake -DVERSION=master -P ${CMake_SOURCE_DIR}/Utilities/
 
   ADD_TEST_MACRO(CMakeCommands.target_link_libraries target_link_libraries)
   ADD_TEST_MACRO(CMakeCommands.target_include_directories target_include_directories)
+  ADD_TEST_MACRO(CMakeCommands.target_compile_definitions target_compile_definitions)
 
   configure_file(
     "${CMake_SOURCE_DIR}/Tests/CTestTestCrash/test.cmake.in"