b038fe556b
Visual C++ has a clang-based driver, available through the clang-cl wrapper (which provides the same interface as cl) - this generates objects binary-compatible with the default (traditional) driver, and can then be linked in the normal way. As such, this patch simply configures for MSVCC and then overwrites the cl compiler with clang-cl in the environment. Clang gives (subjectively) much more understandable compiler warnings and errors than MSVCC, which was my motivation for switching. Test-Information: Builds for me with VS2022, and my gdextension library builds and links.
72 lines
2.4 KiB
Python
72 lines
2.4 KiB
Python
import sys
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import my_spawn
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from SCons.Tool import msvc, mingw
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from SCons.Variables import *
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def options(opts):
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opts.Add(BoolVariable("use_mingw", "Use the MinGW compiler instead of MSVC - only effective on Windows", False))
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opts.Add(BoolVariable("use_clang_cl", "Use the clang driver instead of MSVC - only effective on Windows", False))
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def exists(env):
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return True
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def generate(env):
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base = None
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if not env["use_mingw"] and msvc.exists(env):
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if env["arch"] == "x86_64":
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env["TARGET_ARCH"] = "amd64"
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elif env["arch"] == "x86_32":
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env["TARGET_ARCH"] = "x86"
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env["is_msvc"] = True
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msvc.generate(env)
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env.Append(CPPDEFINES=["TYPED_METHOD_BIND"])
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env.Append(LINKFLAGS=["/WX"])
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if env["target"] == "debug":
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env.Append(CCFLAGS=["/Z7", "/Od", "/EHsc", "/D_DEBUG", "/MDd"])
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elif env["target"] == "release":
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env.Append(CCFLAGS=["/O2", "/EHsc", "/DNDEBUG", "/MD"])
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if env["use_clang_cl"]:
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env["CC"] = "clang-cl"
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env["CXX"] = "clang-cl"
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elif sys.platform == "win32" or sys.platform == "msys":
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env["use_mingw"] = True
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mingw.generate(env)
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# Still need to use C++17.
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env.Append(CCFLAGS=["-std=c++17"])
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# Don't want lib prefixes
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env["IMPLIBPREFIX"] = ""
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env["SHLIBPREFIX"] = ""
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# Want dll suffix
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env["SHLIBSUFFIX"] = ".dll"
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# Long line hack. Use custom spawn, quick AR append (to avoid files with the same names to override each other).
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my_spawn.configure(env)
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else:
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env["use_mingw"] = True
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# Cross-compilation using MinGW
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prefix = "i686" if env["arch"] == "x86_32" else env["arch"]
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env["CXX"] = prefix + "-w64-mingw32-g++"
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env["CC"] = prefix + "-w64-mingw32-gcc"
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env["AR"] = prefix + "-w64-mingw32-ar"
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env["RANLIB"] = prefix + "-w64-mingw32-ranlib"
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env["LINK"] = prefix + "-w64-mingw32-g++"
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# Want dll suffix
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env["SHLIBSUFFIX"] = ".dll"
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# These options are for a release build even using target=debug
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env.Append(CCFLAGS=["-O3", "-Wwrite-strings"])
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env.Append(
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LINKFLAGS=[
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"--static",
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"-Wl,--no-undefined",
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"-static-libgcc",
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"-static-libstdc++",
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]
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)
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