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Add support for compiling with VS clang-cl toolset

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This commit is contained in:
Alula
2024-05-24 15:07:22 +02:00
committed by Thaddeus Crews
parent f648de1a83
commit 346cbc7f1f
13 changed files with 92 additions and 36 deletions
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35
platform/windows/detect.py
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@@ -381,6 +381,15 @@ def configure_msvc(env: "SConsEnvironment", vcvars_msvc_config):
## Compile/link flags
if env["use_llvm"]:
env["CC"] = "clang-cl"
env["CXX"] = "clang-cl"
env["LINK"] = "lld-link"
env["AR"] = "llvm-lib"
env.AppendUnique(CPPDEFINES=["R128_STDC_ONLY"])
env.extra_suffix = ".llvm" + env.extra_suffix
env["MAXLINELENGTH"] = 8192 # Windows Vista and beyond, so always applicable.
if env["silence_msvc"] and not env.GetOption("clean"):
@@ -465,7 +474,6 @@ def configure_msvc(env: "SConsEnvironment", vcvars_msvc_config):
env.AppendUnique(CCFLAGS=["/Gd", "/GR", "/nologo"])
env.AppendUnique(CCFLAGS=["/utf-8"]) # Force to use Unicode encoding.
env.AppendUnique(CXXFLAGS=["/TP"]) # assume all sources are C++
# Once it was thought that only debug builds would be too large,
# but this has recently stopped being true. See the mingw function
# for notes on why this shouldn't be enabled for gcc
@@ -590,6 +598,9 @@ def configure_msvc(env: "SConsEnvironment", vcvars_msvc_config):
if env["target"] in ["editor", "template_debug"]:
LIBS += ["psapi", "dbghelp"]
if env["use_llvm"]:
LIBS += [f"clang_rt.builtins-{env['arch']}"]
env.Append(LINKFLAGS=[p + env["LIBSUFFIX"] for p in LIBS])
if vcvars_msvc_config:
@@ -605,14 +616,22 @@ def configure_msvc(env: "SConsEnvironment", vcvars_msvc_config):
if env["lto"] != "none":
if env["lto"] == "thin":
print_error("ThinLTO is only compatible with LLVM, use `use_llvm=yes` or `lto=full`.")
sys.exit(255)
env.AppendUnique(CCFLAGS=["/GL"])
env.AppendUnique(ARFLAGS=["/LTCG"])
if env["progress"]:
env.AppendUnique(LINKFLAGS=["/LTCG:STATUS"])
if not env["use_llvm"]:
print("ThinLTO is only compatible with LLVM, use `use_llvm=yes` or `lto=full`.")
sys.exit(255)
env.Append(CCFLAGS=["-flto=thin"])
env.Append(LINKFLAGS=["-flto=thin"])
elif env["use_llvm"]:
env.Append(CCFLAGS=["-flto"])
env.Append(LINKFLAGS=["-flto"])
else:
env.AppendUnique(LINKFLAGS=["/LTCG"])
env.AppendUnique(CCFLAGS=["/GL"])
env.AppendUnique(ARFLAGS=["/LTCG"])
if env["progress"]:
env.AppendUnique(LINKFLAGS=["/LTCG:STATUS"])
else:
env.AppendUnique(LINKFLAGS=["/LTCG"])
if vcvars_msvc_config:
env.Prepend(CPPPATH=[p for p in str(os.getenv("INCLUDE")).split(";")])