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CMake: MSVC build is cleaner now (and shows less warnings)

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- suppress some compiler warnings
- don't pass GCC/clang-specific flags to MSVC

(also made sure it still builds with MinGW)
This commit is contained in:
Daniel Gibson 2022-02-27 01:34:11 +01:00
parent 35232218e9
commit 16c97f6ece
1 changed files with 25 additions and 18 deletions
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43
CMakeLists.txt
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@ -28,6 +28,14 @@ endif()
# Add extended path for FreeBSD and Homebrew on OS X.
list(APPEND CMAKE_PREFIX_PATH /usr/local)
if (MSVC)
# ignore some compiler warnings
add_compile_options(/wd4244 /wd4305) # possible loss of data/truncation (double to float etc; ignore)
add_compile_options(/wd4018) # signed/unsigned missmatch
add_compile_options(/wd4996) # 'function': was declared deprecated (like all that secure CRT stuff)
# don't show me warnings for system headers, why the fuck isn't this default
add_compile_options(/experimental:external /external:W0)
else() # GCC/clang/mingw
# Enforce compiler flags:
# -Wall -> More warnings
# -fno-strict-aliasing -> Quake 2 is far away from strict aliasing
@ -35,7 +43,11 @@ list(APPEND CMAKE_PREFIX_PATH /usr/local)
# -fvisibility=hidden -> Force defaultsymbol visibility to hidden
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -Wall -fno-strict-aliasing -fwrapv -fvisibility=hidden")
# Switch of some annoying warnings
# Use -O2 as maximum optimization level. -O3 has it's problems with yquake2.
string(REPLACE "-O3" "-O2" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}")
endif() # MSVC'S else-case
# Switch off some annoying warnings
if (${CMAKE_C_COMPILER_ID} STREQUAL "Clang")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-missing-braces")
elseif (${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
@ -44,9 +56,6 @@ elseif (${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
endif()
endif()
# Use -O2 as maximum optimization level. -O3 has it's problems with yquake2.
string(REPLACE "-O3" "-O2" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}")
# Compilation time options.
option(CURL_SUPPORT "cURL support" ON)
option(OPENAL_SUPPORT "OpenAL support" ON)
@ -221,11 +230,15 @@ if(${OPENAL_SUPPORT})
endif()
# General linker flags.
list(APPEND yquake2LinkerFlags "-lm")
if(!MSVC)
list(APPEND yquake2LinkerFlags "-lm")
endif()
list(APPEND yquake2LinkerFlags ${CMAKE_DL_LIBS})
if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
list(APPEND yquake2LinkerFlags "-lws2_32 -lwinmm -static-libgcc")
if(!MSVC)
list(APPEND yquake2LinkerFlags "-static-libgcc")
endif()
else()
if (NOT ${CMAKE_SYSTEM_NAME} MATCHES "Haiku")
list(APPEND yquake2LinkerFlags "-rdynamic")
@ -238,10 +251,8 @@ else()
endif()
endif()
if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "OpenBSD")
list(APPEND yquake2LinkerFlags "-Wl,--no-undefined")
endif()
if(NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin" AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "OpenBSD" AND NOT WIN32)
list(APPEND yquake2LinkerFlags "-Wl,--no-undefined")
endif()
# With all of those libraries and user defined paths
@ -647,14 +658,6 @@ set(SOFT-Header
${COMMON_SRC_DIR}/header/shared.h
)
# Wrapper for the Windows binary
if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
set(Wrapper-Source
src/win-wrapper/wrapper.c
${BACKENDS_SRC_DIR}/windows/icon.rc
)
endif()
# Main Quake 2 executable
if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
@ -668,6 +671,10 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
${yquake2SDLLinkerFlags} ${yquake2ZLibLinkerFlags} ws2_32 winmm)
# Wrapper for the Windows binary
set(Wrapper-Source
src/win-wrapper/wrapper.c
${BACKENDS_SRC_DIR}/windows/icon.rc
)
add_executable(quake2 WIN32 ${Wrapper-Source})
set_target_properties(quake2 PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/release)
else()