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cmake: improve handling of compiler flags

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This commit is contained in:
Steffen Vogel 2018-07-03 18:25:47 +02:00
parent b10235ffab
commit 4f7b1ba7ad
1 changed files with 14 additions and 29 deletions
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43
CMakeLists.txt
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@ -22,13 +22,16 @@
cmake_minimum_required(VERSION 3.3)
# Policies
cmake_policy(SET CMP0068 NEW)
project(VILLASnode C CXX)
# Several CMake settings/defaults
set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_THREAD_PREFER_PTHREAD ON)
set(CMAKE_SKIP_INSTALL_RPATH ON)
#set(CMAKE_SKIP_INSTALL_RPATH ON)
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
if(APPLE)
@ -38,43 +41,25 @@ endif()
include(FindPkgConfig)
include(CheckIncludeFile)
include(FeatureSummary)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(GNUInstallDirs)
# Compiler flags
if(BUILD32)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -m32")
set(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} -m32")
add_compile_options(-m32)
link_libraries(-m32)
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fdiagnostics-color=auto -D_POSIX_C_SOURCE=200809L -D_GNU_SOURCE=1")
if(APPLE)
add_definitions(-D_DARWIN_C_SOURCE)
endif()
add_definitions(-D_POSIX_C_SOURCE=200809L -D_GNU_SOURCE)
add_compile_options(-fdiagnostics-color=auto)
if(MSVC)
check_c_compiler_flag("/W4 /WX" C_SUPPORTS_WERROR)
check_cxx_compiler_flag("/W4 /WX" CXX_SUPPORTS_WERROR)
if(C_SUPPORTS_WERROR)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W4 /WX")
endif()
if(CXX_SUPPORTS_WERROR)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /WX")
endif()
add_compile_options(/W4 /WX)
else()
check_c_compiler_flag("-Wall -Werror" C_SUPPORTS_WERROR)
check_cxx_compiler_flag("-Wall -Werror" CXX_SUPPORTS_WERROR)
if(C_SUPPORTS_WERROR)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Werror")
endif()
if(CXX_SUPPORTS_WERROR)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror")
endif()
add_compile_options(-Wall -Werror)
endif()
# Check OS