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Improve compiler version extraction

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This commit is contained in:
MmAaXx500 2021-05-27 19:42:30 +02:00
parent ff648e2504
commit c759b7b235
2 changed files with 42 additions and 7 deletions
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36
SConstruct
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@ -409,14 +409,27 @@ if selected_platform in platform_list:
env.Prepend(CCFLAGS=["/std:c++17"])
# Enforce our minimal compiler version requirements
cc_version = methods.get_compiler_version(env) or [-1, -1]
cc_version_major = cc_version[0]
cc_version_minor = cc_version[1]
cc_version = methods.get_compiler_version(env) or {
"major": None,
"minor": None,
"patch": None,
"metadata1": None,
"metadata2": None,
"date": None,
}
cc_version_major = int(cc_version["major"] or -1)
cc_version_minor = int(cc_version["minor"] or -1)
cc_version_metadata1 = cc_version["metadata1"] or ""
if methods.using_gcc(env):
if cc_version_major == -1:
print(
"Couldn't detect compiler version, skipping version checks. "
"Build may fail if the compiler doesn't support C++17 fully."
)
# GCC 8 before 8.4 has a regression in the support of guaranteed copy elision
# which causes a build failure: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86521
if cc_version_major == 8 and cc_version_minor < 4:
elif cc_version_major == 8 and cc_version_minor < 4:
print(
"Detected GCC 8 version < 8.4, which is not supported due to a "
"regression in its C++17 guaranteed copy elision support. Use a "
@ -432,10 +445,23 @@ if selected_platform in platform_list:
"SCons command line."
)
Exit(255)
elif cc_version_metadata1 == "win32":
print(
"Detected mingw version is not using posix threads. Only posix "
"version of mingw is supported. "
'Use "update-alternatives --config <platform>-w64-mingw32-[gcc|g++]" '
"to switch to posix threads."
)
Exit(255)
elif methods.using_clang(env):
if cc_version_major == -1:
print(
"Couldn't detect compiler version, skipping version checks. "
"Build may fail if the compiler doesn't support C++17 fully."
)
# Apple LLVM versions differ from upstream LLVM version \o/, compare
# in https://en.wikipedia.org/wiki/Xcode#Toolchain_versions
if env["platform"] == "osx" or env["platform"] == "iphone":
elif env["platform"] == "osx" or env["platform"] == "iphone":
vanilla = methods.is_vanilla_clang(env)
if vanilla and cc_version_major < 6:
print(

13
methods.py
View File

@ -787,9 +787,18 @@ def get_compiler_version(env):
return None
else: # TODO: Implement for MSVC
return None
match = re.search("[0-9]+\.[0-9.]+", version)
match = re.search(
"(?:(?<=version )|(?<=\) )|(?<=^))"
"(?P<major>\d+)"
"(?:\.(?P<minor>\d*))?"
"(?:\.(?P<patch>\d*))?"
"(?:-(?P<metadata1>[0-9a-zA-Z-]*))?"
"(?:\+(?P<metadata2>[0-9a-zA-Z-]*))?"
"(?: (?P<date>[0-9]{8}|[0-9]{6})(?![0-9a-zA-Z]))?",
version,
)
if match is not None:
return list(map(int, match.group().split(".")))
return match.groupdict()
else:
return None