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| author | Robert Maynard <robert.maynard@kitware.com> | 2020-05-22 14:39:52 (GMT) |
|---|---|---|
| committer | Robert Maynard <robert.maynard@kitware.com> | 2020-06-09 20:20:53 (GMT) |
| commit | 644d3b86ebb4be108172765e96251162e2537344 (patch) | |
| tree | 88b4d602c6883f336b335c6fde8bdb8a562c35db /Modules/Compiler | |
| parent | c08ee5e74e4ee19989a99a405936a1cb61d33534 (diff) | |
| download | CMake-644d3b86ebb4be108172765e96251162e2537344.zip CMake-644d3b86ebb4be108172765e96251162e2537344.tar.gz CMake-644d3b86ebb4be108172765e96251162e2537344.tar.bz2 | |
C: Compile when possible with explicit `C` language flag set
Issue: #14516, #20716
Diffstat (limited to 'Modules/Compiler')
| -rw-r--r-- | Modules/Compiler/AppleClang-C.cmake | 2 | ||||
| -rw-r--r-- | Modules/Compiler/Clang-C.cmake | 2 | ||||
| -rw-r--r-- | Modules/Compiler/GNU-C.cmake | 2 | ||||
| -rw-r--r-- | Modules/Compiler/Intel-C.cmake | 2 | ||||
| -rw-r--r-- | Modules/Compiler/XL-C.cmake | 2 | ||||
| -rw-r--r-- | Modules/Compiler/XLClang-C.cmake | 2 |
6 files changed, 12 insertions, 0 deletions
diff --git a/Modules/Compiler/AppleClang-C.cmake b/Modules/Compiler/AppleClang-C.cmake index 2794f52..26a4bbd 100644 --- a/Modules/Compiler/AppleClang-C.cmake +++ b/Modules/Compiler/AppleClang-C.cmake @@ -1,6 +1,8 @@ include(Compiler/Clang) __compiler_clang(C) +set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c) + if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.0) set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90") set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90") diff --git a/Modules/Compiler/Clang-C.cmake b/Modules/Compiler/Clang-C.cmake index 7c4a263..fb6ffa7 100644 --- a/Modules/Compiler/Clang-C.cmake +++ b/Modules/Compiler/Clang-C.cmake @@ -8,6 +8,8 @@ endif() if("x${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "xMSVC") set(CMAKE_C_CLANG_TIDY_DRIVER_MODE "cl") +elseif("x${CMAKE_CXX_COMPILER_FRONTEND_VARIANT}" STREQUAL "xGNU") + set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c) endif() if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 3.4) diff --git a/Modules/Compiler/GNU-C.cmake b/Modules/Compiler/GNU-C.cmake index ca286b3..8105a77 100644 --- a/Modules/Compiler/GNU-C.cmake +++ b/Modules/Compiler/GNU-C.cmake @@ -1,6 +1,8 @@ include(Compiler/GNU) __compiler_gnu(C) +set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c) + if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.5) set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90") set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90") diff --git a/Modules/Compiler/Intel-C.cmake b/Modules/Compiler/Intel-C.cmake index ec3bfd8..322f63d 100644 --- a/Modules/Compiler/Intel-C.cmake +++ b/Modules/Compiler/Intel-C.cmake @@ -28,6 +28,8 @@ if("x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC") else() + set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c) + if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 15.0.0) set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11") set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11") diff --git a/Modules/Compiler/XL-C.cmake b/Modules/Compiler/XL-C.cmake index 2077bda..78c44d5 100644 --- a/Modules/Compiler/XL-C.cmake +++ b/Modules/Compiler/XL-C.cmake @@ -6,6 +6,8 @@ string(APPEND CMAKE_C_FLAGS_MINSIZEREL_INIT " -DNDEBUG") # -qthreaded = Ensures that all optimizations will be thread-safe string(APPEND CMAKE_C_FLAGS_INIT " -qthreaded") +set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -qsourcetype=c) + if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10.1) set(CMAKE_C90_STANDARD_COMPILE_OPTION "-qlanglvl=stdc89") set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-qlanglvl=extc89") diff --git a/Modules/Compiler/XLClang-C.cmake b/Modules/Compiler/XLClang-C.cmake index 54c18a6..1668a4d 100644 --- a/Modules/Compiler/XLClang-C.cmake +++ b/Modules/Compiler/XLClang-C.cmake @@ -1,6 +1,8 @@ include(Compiler/XLClang) __compiler_xlclang(C) +set(CMAKE_C_COMPILE_OPTIONS_EXPLICIT_LANGUAGE -x c) + if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 13.1.1) set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c89") set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu89") |