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CXX: Compile when possible with explicit Cxx language flag set

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Issue: #14516, #20716
This commit is contained in:
Robert Maynard
2020-05-22 10:40:50 -04:00
parent 644d3b86eb
commit 457170a476
6 changed files with 12 additions and 3 deletions
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2
Modules/Compiler/AppleClang-CXX.cmake
View File

@@ -1,6 +1,8 @@
include(Compiler/Clang)
__compiler_clang(CXX)
set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c++)
if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
endif()

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

@@ -2,7 +2,9 @@ include(Compiler/Clang)
__compiler_clang(CXX)
__compiler_clang_cxx_standards(CXX)
if("x${CMAKE_CXX_COMPILER_FRONTEND_VARIANT}" STREQUAL "xGNU")
set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c++)
set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
endif()

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

@@ -1,6 +1,8 @@
include(Compiler/GNU)
__compiler_gnu(CXX)
set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c++)
if (WIN32)
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.6)
set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fno-keep-inline-dllexport")

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

@@ -37,6 +37,8 @@ if("x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
else()
set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c++)
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.0.0)
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++17")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++17")

5
Modules/Compiler/XL-CXX.cmake
View File

@@ -6,6 +6,8 @@ string(APPEND CMAKE_CXX_FLAGS_MINSIZEREL_INIT " -DNDEBUG")
# -qthreaded = Ensures that all optimizations will be thread-safe
string(APPEND CMAKE_CXX_FLAGS_INIT " -qthreaded")
set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -+)
if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 10.1)
if(CMAKE_SYSTEM MATCHES "Linux")
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
@@ -32,6 +34,3 @@ if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 10.1)
endif ()
__compiler_check_default_language_standard(CXX 10.1 98)
set(CMAKE_CXX_COMPILE_OBJECT
"<CMAKE_CXX_COMPILER> -+ <DEFINES> <INCLUDES> <FLAGS> -o <OBJECT> -c <SOURCE>")

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

@@ -1,6 +1,8 @@
include(Compiler/XLClang)
__compiler_xlclang(CXX)
set(CMAKE_CXX_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c++)
if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 13.1.1)
set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")