CMake: Use add_compile_options instead of appending to CMAKE_CXX_FLAGS

Problem:
- Appending to CMAKE_CXX_FLAGS for everything is cumbersome.

Solution:
- Use the `add_compile_options` built-in function to handle adding
  compiler options (and even de-duplicating).
This commit is contained in:
Lenny Maiorani 2020-12-21 18:04:46 -07:00 committed by Andreas Kling
parent ded0b5a93c
commit 6fac1abac4

View file

@ -46,11 +46,12 @@ set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unknown-warning-option -Wall -Wextra -Werror -Wmissing-declarations -fdiagnostics-color=always -ftls-model=initial-exec")
add_compile_options(-Wno-unknown-warning-option -Wall -Wextra -Werror -Wmissing-declarations -fdiagnostics-color=always -ftls-model=initial-exec)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fconcepts")
add_compile_options(-fconcepts)
elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-overloaded-virtual")
add_compile_options(-Wno-overloaded-virtual)
endif()
if (ALL_THE_DEBUG_MACROS)
@ -264,10 +265,10 @@ set(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS "-shared")
#FIXME: -fstack-protector
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Os -g1 -fno-exceptions -fno-rtti -Wno-address-of-packed-member -Wundef -Wcast-qual -Wwrite-strings -Wimplicit-fallthrough -Wno-nonnull-compare -Wno-deprecated-copy -Wno-expansion-to-defined")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffile-prefix-map=${CMAKE_SOURCE_DIR}=.")
add_compile_options(-Os -g1 -fno-exceptions -fno-rtti -Wno-address-of-packed-member -Wundef -Wcast-qual -Wwrite-strings -Wimplicit-fallthrough -Wno-nonnull-compare -Wno-deprecated-copy -Wno-expansion-to-defined)
add_compile_options(-ffile-prefix-map=${CMAKE_SOURCE_DIR}=.)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DDEBUG -DSANITIZE_PTRS")
add_compile_definitions(DEBUG SANITIZE_PTRS)
set(CMAKE_CXX_FLAGS_STATIC "${CMAKE_CXX_FLAGS} -static")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -nostartfiles -pie -fpic")