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-rw-r--r--Modules/CMakeBackwardCompatibilityCXX.cmake54
1 files changed, 54 insertions, 0 deletions
diff --git a/Modules/CMakeBackwardCompatibilityCXX.cmake b/Modules/CMakeBackwardCompatibilityCXX.cmake
new file mode 100644
index 000000000..707bbde50
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+++ b/Modules/CMakeBackwardCompatibilityCXX.cmake
@@ -0,0 +1,54 @@
+# - define a bunch of backwards compatibility variables
+# CMAKE_ANSI_CXXFLAGS - flag for ansi c++
+# CMAKE_HAS_ANSI_STRING_STREAM - has <strstream>
+# INCLUDE(TestForANSIStreamHeaders)
+# INCLUDE(CheckIncludeFileCXX)
+# INCLUDE(TestForSTDNamespace)
+# INCLUDE(TestForANSIForScope)
+
+#=============================================================================
+# Copyright 2002-2009 Kitware, Inc.
+#
+# 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.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+# License text for the above reference.)
+
+IF(NOT CMAKE_SKIP_COMPATIBILITY_TESTS)
+ # check for some ANSI flags in the CXX compiler if it is not gnu
+ IF(NOT CMAKE_COMPILER_IS_GNUCXX)
+ INCLUDE(TestCXXAcceptsFlag)
+ SET(CMAKE_TRY_ANSI_CXX_FLAGS "")
+ IF(CMAKE_SYSTEM MATCHES "IRIX.*")
+ SET(CMAKE_TRY_ANSI_CXX_FLAGS "-LANG:std")
+ ENDIF(CMAKE_SYSTEM MATCHES "IRIX.*")
+ IF(CMAKE_SYSTEM MATCHES "OSF.*")
+ SET(CMAKE_TRY_ANSI_CXX_FLAGS "-std strict_ansi -nopure_cname")
+ ENDIF(CMAKE_SYSTEM MATCHES "OSF.*")
+ # if CMAKE_TRY_ANSI_CXX_FLAGS has something in it, see
+ # if the compiler accepts it
+ IF( CMAKE_TRY_ANSI_CXX_FLAGS MATCHES ".+")
+ CHECK_CXX_ACCEPTS_FLAG(${CMAKE_TRY_ANSI_CXX_FLAGS} CMAKE_CXX_ACCEPTS_FLAGS)
+ # if the compiler liked the flag then set CMAKE_ANSI_CXXFLAGS
+ # to the flag
+ IF(CMAKE_CXX_ACCEPTS_FLAGS)
+ SET(CMAKE_ANSI_CXXFLAGS ${CMAKE_TRY_ANSI_CXX_FLAGS} CACHE INTERNAL
+ "What flags are required by the c++ compiler to make it ansi." )
+ ENDIF(CMAKE_CXX_ACCEPTS_FLAGS)
+ ENDIF( CMAKE_TRY_ANSI_CXX_FLAGS MATCHES ".+")
+ ENDIF(NOT CMAKE_COMPILER_IS_GNUCXX)
+ SET(CMAKE_CXX_FLAGS_SAVE ${CMAKE_CXX_FLAGS})
+ SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_ANSI_CXXFLAGS}")
+ INCLUDE(TestForANSIStreamHeaders)
+ INCLUDE(CheckIncludeFileCXX)
+ INCLUDE(TestForSTDNamespace)
+ INCLUDE(TestForANSIForScope)
+ INCLUDE(TestForSSTREAM)
+ SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_SAVE}")
+ENDIF(NOT CMAKE_SKIP_COMPATIBILITY_TESTS)
+