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| author | info@mode42.com <info@mode42.com> | 2026-08-08 03:54:55 +0000 |
|---|---|---|
| committer | info@mode42.com <info@mode42.com> | 2026-08-08 03:54:55 +0000 |
| commit | 20cb29c2f8c5c87bc590896854a20b1473ceb358 (patch) | |
| tree | 2857f41513a56ad41af97b57362639298aa7f033 /cmake/Compiler.cmake | |
#2
Diffstat (limited to 'cmake/Compiler.cmake')
| -rw-r--r-- | cmake/Compiler.cmake | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/cmake/Compiler.cmake b/cmake/Compiler.cmake new file mode 100644 index 0000000..bd0b352 --- /dev/null +++ b/cmake/Compiler.cmake @@ -0,0 +1,97 @@ +# HyBBX toolchain detection and portable warning flags. +# +# Supported compilers: GCC (primary), LLVM Clang. +# Supported OS families: Linux, *BSD (FreeBSD, NetBSD, OpenBSD, …), MacOS X+, +# Windows 10+ (MinGW/Clang), AmigaOS 3.9+ (cross-GCC). POSIX+ friendly. + +include(CheckCCompilerFlag) + +set(HYBBX_COMPILER_GCC FALSE) +set(HYBBX_COMPILER_CLANG FALSE) +set(HYBBX_COMPILER_APPLECLANG FALSE) + +if(CMAKE_C_COMPILER_ID STREQUAL "GNU") + set(HYBBX_COMPILER_GCC TRUE) +elseif(CMAKE_C_COMPILER_ID STREQUAL "Clang") + if(CMAKE_C_COMPILER_FRONTEND_VARIANT STREQUAL "MSVC") + message(FATAL_ERROR "HyBBX requires GCC or Clang.") + endif() + set(HYBBX_COMPILER_CLANG TRUE) +elseif(CMAKE_C_COMPILER_ID STREQUAL "AppleClang") + set(HYBBX_COMPILER_CLANG TRUE) + set(HYBBX_COMPILER_APPLECLANG TRUE) +elseif(CMAKE_C_COMPILER_ID STREQUAL "MSVC") + message(FATAL_ERROR "HyBBX requires GCC or Clang.") +else() + message(WARNING + "HyBBX is developed with GCC (primary) and Clang. " + "Compiler '${CMAKE_C_COMPILER_ID}' is untested.") +endif() + +function(hybbx_probe_c_flag flag out_var) + string(REGEX REPLACE "[^a-zA-Z0-9]+" "_" flag_id "${flag}") + set(cache_var "HYBBX_C_FLAG_${flag_id}") + if(NOT DEFINED ${cache_var}) + check_c_compiler_flag("${flag}" ${cache_var}) + endif() + if(${cache_var}) + set(${out_var} TRUE PARENT_SCOPE) + else() + set(${out_var} FALSE PARENT_SCOPE) + endif() +endfunction() + +function(hybbx_collect_supported_c_flags) + set(_candidates + -Wall + -Wextra + -Wpedantic + -Wformat=2 + -Wstrict-prototypes + -Wmissing-prototypes + -Wwrite-strings + -Wshadow + -fno-strict-aliasing + ) + + if(NOT HYBBX_PLATFORM_AMIGAOS) + list(APPEND _candidates -fstack-protector-strong) + endif() + + if(HYBBX_COMPILER_GCC) + list(APPEND _candidates + -Wduplicated-cond + -Wnull-dereference + -Wlogical-op + -Wformat-signedness + ) + if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 8.0 AND NOT HYBBX_PLATFORM_AMIGAOS) + list(APPEND _candidates -fstack-clash-protection) + endif() + endif() + + if(HYBBX_COMPILER_CLANG AND NOT HYBBX_COMPILER_APPLECLANG) + list(APPEND _candidates -Wno-gnu-zero-variadic-macro-arguments) + endif() + + set(_supported "") + foreach(flag IN LISTS _candidates) + hybbx_probe_c_flag("${flag}" _ok) + if(_ok) + list(APPEND _supported "${flag}") + endif() + endforeach() + + set(HYBBX_SUPPORTED_C_FLAGS "${_supported}" CACHE INTERNAL + "C warning/security flags supported by ${CMAKE_C_COMPILER_ID}") +endfunction() + +hybbx_collect_supported_c_flags() + +if(HYBBX_COMPILER_GCC) + message(STATUS "HyBBX compiler: GCC ${CMAKE_C_COMPILER_VERSION} (primary)") +elseif(HYBBX_COMPILER_CLANG) + message(STATUS "HyBBX compiler: Clang ${CMAKE_C_COMPILER_VERSION}") +else() + message(STATUS "HyBBX compiler: ${CMAKE_C_COMPILER_ID} ${CMAKE_C_COMPILER_VERSION}") +endif() |