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-rw-r--r--Modules/CMakeBackwardCompatibilityCXX.cmake39
1 files changed, 18 insertions, 21 deletions
diff --git a/Modules/CMakeBackwardCompatibilityCXX.cmake b/Modules/CMakeBackwardCompatibilityCXX.cmake
index cfc1d91f9..cbd5ea76c 100644
--- a/Modules/CMakeBackwardCompatibilityCXX.cmake
+++ b/Modules/CMakeBackwardCompatibilityCXX.cmake
@@ -1,38 +1,35 @@
-# - 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)
+# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
-#=============================================================================
-# Copyright 2002-2009 Kitware, Inc.
+#.rst:
+# CMakeBackwardCompatibilityCXX
+# -----------------------------
#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
+# define a bunch of backwards compatibility variables
#
-# 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.)
+# ::
+#
+# CMAKE_ANSI_CXXFLAGS - flag for ansi c++
+# CMAKE_HAS_ANSI_STRING_STREAM - has <strstream>
+# include(TestForANSIStreamHeaders)
+# include(CheckIncludeFileCXX)
+# include(TestForSTDNamespace)
+# include(TestForANSIForScope)
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.*")
+ if(CMAKE_SYSTEM_NAME MATCHES "IRIX")
set(CMAKE_TRY_ANSI_CXX_FLAGS "-LANG:std")
endif()
- if(CMAKE_SYSTEM MATCHES "OSF.*")
+ if(CMAKE_SYSTEM_NAME MATCHES "OSF")
set(CMAKE_TRY_ANSI_CXX_FLAGS "-std strict_ansi -nopure_cname")
endif()
# if CMAKE_TRY_ANSI_CXX_FLAGS has something in it, see
# if the compiler accepts it
- if( CMAKE_TRY_ANSI_CXX_FLAGS MATCHES ".+")
+ if(NOT CMAKE_TRY_ANSI_CXX_FLAGS STREQUAL "")
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
@@ -43,7 +40,7 @@ if(NOT CMAKE_SKIP_COMPATIBILITY_TESTS)
endif()
endif()
set(CMAKE_CXX_FLAGS_SAVE ${CMAKE_CXX_FLAGS})
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_ANSI_CXXFLAGS}")
+ string(APPEND CMAKE_CXX_FLAGS " ${CMAKE_ANSI_CXXFLAGS}")
include(TestForANSIStreamHeaders)
include(CheckIncludeFileCXX)
include(TestForSTDNamespace)