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[CMAKE] Make vc6 debug compatible with retail #1217

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[CMAKE] Make vc6 debug compatible with retail #1217

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1 change: 1 addition & 0 deletions CMakePresets.json
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
"generator": "NMake Makefiles",
"hidden": false,
"binaryDir": "${sourceDir}/build/${presetName}",
"toolchainFile": "${sourceDir}/cmake/vc6toolchain.cmake",
"cacheVariables": {
"CMAKE_EXPORT_COMPILE_COMMANDS": "ON",
"CMAKE_MSVC_RUNTIME_LIBRARY": "MultiThreaded$<$<CONFIG:Debug>:Debug>DLL",
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6 changes: 5 additions & 1 deletion cmake/config-build.cmake
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Expand Up @@ -61,7 +61,11 @@ if(UNIX)
endif()

if(RTS_BUILD_OPTION_DEBUG)
target_compile_definitions(core_config INTERFACE RTS_DEBUG WWDEBUG DEBUG)
if(NOT IS_VS6_BUILD)
target_compile_definitions(core_config INTERFACE RTS_DEBUG WWDEBUG DEBUG)
else()
target_compile_definitions(core_config INTERFACE RTS_DEBUG WWDEBUG)
endif()
else()
target_compile_definitions(core_config INTERFACE RTS_RELEASE)

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63 changes: 63 additions & 0 deletions cmake/vc6toolchain.cmake
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Original file line number Diff line number Diff line change
@@ -0,0 +1,63 @@
# Setting C++ default compiler flags for VC6

string(JOIN " " VC6_CXX_FLAGS
"/DWIN32" # Define WIN32 macro
"/D_WINDOWS" # Define _WINDOWS macro
"/Zm800" # Cap precompiled header memory allocation to prevent running out of heap space
"/Gd" # __cdecl calling convention for all functions (C/C++ standard behaviour)
"/GR" # Enable RTTI (Run-Time Type Information, needed for things like dynamic_cast)
"/EHs" # Synchronous C++ exception handling (ISO-standard C++ exception handling)
"/EHc" # Assume extern "C" functions never throw (safe for release)
)
string(JOIN " " VC6_CXX_FLAGS_RELEASE
"/O2" # Optimize for speed
"/Ob2" # Inline any suitable function
"/Oy" # Omit frame pointer (smaller/faster code)
"/DNDEBUG"
"/O2" # Optimize for speed
"/nologo" # Suppress copyright message
)
string(JOIN " " VC6_CXX_FLAGS_DEBUG
"/Og /Oi /Gs" # Optimize for speed (for compatibility)
"/Ob2" # Inline any suitable function (for compatibility)
"/Oy-" # Don't omit frame pointer
"/DNDEBUG" # (for compatibility)
)
string(JOIN " " VC6_EXE_LINKER_FLAGS
"/machine:IX86" # Target x86 architecture
"/LARGEADDRESSAWARE"# Allow addresses larger than 2 gigabytes"
)
string(JOIN " " VC6_EXE_LINKER_FLAGS_RELEASE
"/RELEASE" # Set the checksum in the header and mark as release
"/OPT:REF,ICF" # Remove unreferenced code/data, COMDAT folding
"/NOLOGO" # Suppress linker startup banner
)
string(JOIN " " VC6_EXE_LINKER_FLAGS_DEBUG
"/DEBUG" # Generate debug info
"/OPT:NOREF,ICF" # Don't remove unreferenced code/data, COMDAT folding
)
set(CMAKE_CXX_FLAGS "${VC6_CXX_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_CXX_FLAGS_RELEASE "${VC6_CXX_FLAGS_RELEASE}" CACHE STRING "" FORCE)
set(CMAKE_CXX_FLAGS_DEBUG "${VC6_CXX_FLAGS_DEBUG}" CACHE STRING "" FORCE)
set(CMAKE_C_FLAGS "${VC6_CXX_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_C_FLAGS_RELEASE "${VC6_CXX_FLAGS_RELEASE}" CACHE STRING "" FORCE)
set(CMAKE_C_FLAGS_DEBUG "${VC6_CXX_FLAGS_DEBUG}" CACHE STRING "" FORCE)


set(CMAKE_EXE_LINKER_FLAGS "${VC6_EXE_LINKER_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_SHARED_LINKER_FLAGS "${VC6_EXE_LINKER_FLAGS}" CACHE STRING "" FORCE)
set(CMAKE_MODULE_LINKER_FLAGS "${VC6_EXE_LINKER_FLAGS}" CACHE STRING "" FORCE)

set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${VC6_EXE_LINKER_FLAGS_DEBUG}" CACHE STRING "" FORCE)
set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${VC6_EXE_LINKER_FLAGS_DEBUG}" CACHE STRING "" FORCE)
set(CMAKE_MODULE_LINKER_FLAGS_DEBUG "${VC6_EXE_LINKER_FLAGS_DEBUG}" CACHE STRING "" FORCE)

set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${VC6_EXE_LINKER_FLAGS_RELEASE}" CACHE STRING "" FORCE)
set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${VC6_EXE_LINKER_FLAGS_RELEASE}" CACHE STRING "" FORCE)
set(CMAKE_SHARED_MODULE_FLAGS_RELEASE "${VC6_EXE_LINKER_FLAGS_RELEASE}" CACHE STRING "" FORCE)

set(CMAKE_STATIC_LINKER_FLAGS "/machine:IX86" CACHE STRING "" FORCE)
set(CMAKE_STATIC_LINKER_FLAGS_RELEASE "" CACHE STRING "" FORCE)
set(CMAKE_STATIC_LINKER_FLAGS_DEBUG "" CACHE STRING "" FORCE)


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