gh-121647: Define _Py_TYPEOF macro on more compilers · python/cpython@85e5cbd · GitHub
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gh-121647: Define _Py_TYPEOF macro on more compilers
Extend the _Py_TYPEOF macro to more implementations of __typeof__ and standardized equivalents on C23 and C++11. On MSVC, __typeof__ is enabled through _MSC_VER check; for others, an autoconf probe is implemented.
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‎Include/pyport.h‎

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‎configure‎

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‎configure.ac‎

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@@ -6983,6 +6983,19 @@ case "$ac_cv_computed_gotos" in yes*)
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[Define if the C compiler supports computed gotos.])
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esac
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AC_CACHE_CHECK([whether $CC supports __typeof__], [ac_cv_typeof],
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
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int i;
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__typeof__(i) *p = &i;
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]])],
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[ac_cv_typeof=yes],
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[ac_cv_typeof=no]))
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if test "$ac_cv_typeof" = yes
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then
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AC_DEFINE([HAVE_TYPEOF], [1],
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[Define if the C compiler supports __typeof__(expr)])
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fi
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case $ac_sys_system in
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AIX*)
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AC_DEFINE([HAVE_BROKEN_PIPE_BUF], [1],

‎pyconfig.h.in‎

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