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CompileFeatures: Record when CXX compilers have gained full support for 98

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Use the infrastructure added by commit 646fb1a646 (CompileFeatures:
memoize C++ compilers with full language level support, 2019-03-27) to
avoid using a `try_compile` to check for C++98 feature support when the
running compiler is known to have all features.
This commit is contained in:
Robert Maynard
2019-04-10 09:40:36 -04:00
committed by Brad King
parent 876680e94b
commit 239a8a0266
6 changed files with 8 additions and 0 deletions
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1
Modules/Compiler/AppleClang-CXX.cmake
View File

@@ -8,6 +8,7 @@ endif()
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0)
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")

2
Modules/Compiler/Clang-CXX.cmake
View File

@@ -19,6 +19,7 @@ if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.1)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 2.1)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++0x")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++0x")
@@ -59,6 +60,7 @@ elseif(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 3.9
# support for -std: flags.
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std:c++14")

1
Modules/Compiler/GNU-CXX.cmake
View File

@@ -19,6 +19,7 @@ endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.7)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.4)
# 4.3 supports 0x variants
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++0x")

2
Modules/Compiler/Intel-CXX.cmake
View File

@@ -30,6 +30,7 @@ if("x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
endif()
else()
@@ -64,6 +65,7 @@ else()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
endif()
endif()

1
Modules/Compiler/MSVC-CXX.cmake
View File

@@ -11,6 +11,7 @@ if ((CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19.0.24215.1 AND
# with the default and minimum level being C++14.
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "")
set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std:c++14")

1
Modules/Compiler/SunPro-CXX.cmake
View File

@@ -48,6 +48,7 @@ set(CMAKE_CXX_CREATE_STATIC_LIBRARY
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.13)
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++03")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=c++03")
set(CMAKE_CXX98_STANDARD__HAS_FULL_SUPPORT ON)
set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=c++11")
set(CMAKE_CXX_LINK_WITH_STANDARD_COMPILE_OPTION 1)