cmTarget: Add CXX_STANDARD and CXX_EXTENSION target properties.

These are used to determine whether to add -std=c++11, -std=gnu++11
etc flags on the compile line.

5 files changed, 54 insertions, 0 deletions

diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 0e60ed1..aaa24c7 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -283,6 +283,19 @@ if(BUILD_TESTING)
     ADD_TEST_MACRO(ConfigSources ConfigSources)
   endif()
   ADD_TEST_MACRO(SourcesProperty SourcesProperty)
+  if(CMAKE_CXX_COMPILER_ID STREQUAL GNU
+      AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.6)
+    set(runCxxDialectTest 1)
+  endif()
+  if(CMAKE_CXX_COMPILER_ID STREQUAL Clang
+        AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 2.9)
+    if(NOT APPLE OR POLICY CMP0025)
+      set(runCxxDialectTest 1)
+    endif()
+  endif()
+  if(runCxxDialectTest)
+    ADD_TEST_MACRO(CxxDialect CxxDialect)
+  endif()
   set_tests_properties(EmptyLibrary PROPERTIES
     PASS_REGULAR_EXPRESSION "CMake Error: CMake can not determine linker language for target: test")
   ADD_TEST_MACRO(CrossCompile CrossCompile)
diff --git a/Tests/CxxDialect/CMakeLists.txt b/Tests/CxxDialect/CMakeLists.txt
new file mode 100644
index 0000000..0eb6f8f
--- /dev/null
+++ b/Tests/CxxDialect/CMakeLists.txt
@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 2.8.12)
+cmake_policy(SET CMP0025 NEW)
+project(CxxDialect)
+
+add_executable(use_typeof use_typeof.cxx)
+set_property(TARGET use_typeof PROPERTY CXX_STANDARD 98)
+set_property(TARGET use_typeof PROPERTY CXX_EXTENSIONS ON)
+
+add_executable(use_constexpr use_constexpr.cxx)
+set_property(TARGET use_constexpr PROPERTY CXX_STANDARD 11)
+
+add_executable(CxxDialect use_constexpr_and_typeof.cxx)
+set_property(TARGET CxxDialect PROPERTY CXX_STANDARD 11)
+set_property(TARGET CxxDialect PROPERTY CXX_EXTENSIONS ON)
diff --git a/Tests/CxxDialect/use_constexpr.cxx b/Tests/CxxDialect/use_constexpr.cxx
new file mode 100644
index 0000000..30ccc4c
--- /dev/null
+++ b/Tests/CxxDialect/use_constexpr.cxx
@@ -0,0 +1,10 @@
+
+constexpr int foo()
+{
+  return 0;
+}
+
+int main(int argc, char**)
+{
+  return foo();
+}
diff --git a/Tests/CxxDialect/use_constexpr_and_typeof.cxx b/Tests/CxxDialect/use_constexpr_and_typeof.cxx
new file mode 100644
index 0000000..af217b6
--- /dev/null
+++ b/Tests/CxxDialect/use_constexpr_and_typeof.cxx
@@ -0,0 +1,11 @@
+
+constexpr int foo()
+{
+  return 0;
+}
+
+int main(int argc, char**)
+{
+  typeof(argc) ret = foo();
+  return ret;
+}
diff --git a/Tests/CxxDialect/use_typeof.cxx b/Tests/CxxDialect/use_typeof.cxx
new file mode 100644
index 0000000..dabb61f
--- /dev/null
+++ b/Tests/CxxDialect/use_typeof.cxx
@@ -0,0 +1,6 @@
+
+int main(int argc, char**)
+{
+  typeof(argc) ret = 0;
+  return ret;
+}