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Merge pull request #631 from getchoo/better-msvc-flags

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flow 2022-12-17 05:53:17 -08:00 committed by Sefa Eyeoglu
parent 040774d67b
commit bcf506488f
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1 changed files with 13 additions and 4 deletions
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17
CMakeLists.txt
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@ -28,19 +28,28 @@ set(CMAKE_CXX_STANDARD 17)
set(CMAKE_C_STANDARD 11)
include(GenerateExportHeader)
if(MSVC)
# Use /W4 as /Wall includes unnesserey warnings such as added padding to structs
# /permissive- specify standards-conforming compiler behavior, also enabled by Qt6, default on with std:c++20
# /GS Adds buffer security checks, default on but incuded anyway to mirror gcc's fstack-protector flag
set(CMAKE_CXX_FLAGS "/W4 /permissive- /GS ${CMAKE_CXX_FLAGS}")
# /permissive- specify standards-conforming compiler behavior, also enabled by Qt6, default on with std:c++20
# Use /W4 as /Wall includes unnesserey warnings such as added padding to structs
set(CMAKE_CXX_FLAGS "/GS /permissive- /W4 ${CMAKE_CXX_FLAGS}")
# LINK accepts /SUBSYSTEM whics sets if we are a WINDOWS (gui) or a CONSOLE programs
# This implicitly selects an entrypoint specific to the subsystem selected
# qtmain/QtEntryPointLib provides the correct entrypoint (wWinMain) for gui programs
# Additinaly LINK autodetects we use a GUI so we can omit /SUBSYSTEM
# This allows tests to still use have console without using seperate linker flags
# /LTCG allows for linking wholy optimizated programs
# /MANIFEST:NO disables generating a manifest file, we instead provide our own
# /STACK sets the stack reserve size, ATL's pack list needs 3-4 MiB as of November 2022, provide 8 MiB
set(CMAKE_EXE_LINKER_FLAGS "/MANIFEST:NO /STACK:8388608 ${CMAKE_EXE_LINKER_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "/LTCG /MANIFEST:NO /STACK:8388608 ${CMAKE_EXE_LINKER_FLAGS}")
# /GL enables whole program optimizations
# /Gw helps reduce binary size
# /Gy allows the compiler to package individual functions
# /guard:cf enables control flow guard
foreach(lang C CXX)
set("CMAKE_${lang}_FLAGS_RELEASE" "/GL /Gw /Gy /guard:cf")
endforeach()
# See https://github.com/ccache/ccache/issues/1040
# Note, CMake 3.25 replaces this with CMAKE_MSVC_DEBUG_INFORMATION_FORMAT