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Allow disabling extra flags with MYPYC_NO_EXTRA_FLAGS env variable #20507

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Merged
ilevkivskyi merged 1 commit into from
Jan 1, 2026
+4 −2
Merged

Allow disabling extra flags with MYPYC_NO_EXTRA_FLAGS env variable #20507

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3 changes: 2 additions & 1 deletion mypyc/build_setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@
ccompiler.CCompiler.__spawn = ccompiler.CCompiler.spawn # type: ignore[attr-defined]
X86_64 = platform.machine() in ("x86_64", "AMD64", "amd64")
PYODIDE = "PYODIDE" in os.environ
NO_EXTRA_FLAGS = "MYPYC_NO_EXTRA_FLAGS" in os.environ


def spawn(self, cmd, **kwargs) -> None: # type: ignore[no-untyped-def]
Expand All @@ -46,7 +47,7 @@ def spawn(self, cmd, **kwargs) -> None: # type: ignore[no-untyped-def]
continue
if "base64/arch/" in str(argument):
new_cmd.extend(["-msimd128"])
else:
elif not NO_EXTRA_FLAGS:
compiler_type: str = self.compiler_type
extra_options = EXTRA_FLAGS_PER_COMPILER_TYPE_PER_PATH_COMPONENT.get(compiler_type, None)
new_cmd = list(cmd)
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3 changes: 2 additions & 1 deletion mypyc/lib-rt/build_setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@
ccompiler.CCompiler.__spawn = ccompiler.CCompiler.spawn # type: ignore[attr-defined]
X86_64 = platform.machine() in ("x86_64", "AMD64", "amd64")
PYODIDE = "PYODIDE" in os.environ
NO_EXTRA_FLAGS = "MYPYC_NO_EXTRA_FLAGS" in os.environ


def spawn(self, cmd, **kwargs) -> None: # type: ignore[no-untyped-def]
Expand All @@ -46,7 +47,7 @@ def spawn(self, cmd, **kwargs) -> None: # type: ignore[no-untyped-def]
continue
if "base64/arch/" in str(argument):
new_cmd.extend(["-msimd128"])
else:
elif not NO_EXTRA_FLAGS:
compiler_type: str = self.compiler_type
extra_options = EXTRA_FLAGS_PER_COMPILER_TYPE_PER_PATH_COMPONENT.get(compiler_type, None)
new_cmd = list(cmd)
Expand Down