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Add c++20 support #153

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Merged
merged 1 commit into from
Jan 16, 2022
Merged

Add c++20 support #153

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10 changes: 8 additions & 2 deletions robotpy_build/command/build_ext.py
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Original file line number Diff line number Diff line change
Expand Up @@ -30,11 +30,16 @@ def has_flag(compiler, flagname):


def cpp_flag(compiler, pfx, sep="="):
"""Return the -std=c++[11/14/17] compiler flag.
"""Return the -std=c++[11/14/17/20] compiler flag.
The newer version is prefered over c++11 (when it is available).
"""

flags = [f"{pfx}std{sep}c++17", f"{pfx}std{sep}c++14", f"{pfx}std{sep}c++11"]
flags = [
f"{pfx}std{sep}c++20",
f"{pfx}std{sep}c++17",
f"{pfx}std{sep}c++14",
f"{pfx}std{sep}c++11",
]

for flag in flags:
if has_flag(compiler, flag):
Expand Down Expand Up @@ -75,6 +80,7 @@ def build_extensions(self):
opts.append("-fvisibility=hidden")
elif ct == "msvc":
opts.append(cpp_flag(self.compiler, "/", ":"))
opts.append("/Zc:__cplusplus")
for ext in self.extensions:
ext.define_macros.append(("PYBIND11_USE_SMART_HOLDER_AS_DEFAULT", "1"))
ext.extra_compile_args = opts
Expand Down