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remove configure check for 'volatile' (#3281) 

This is a required feature is C99, which we require.
This commit is contained in:
Benjamin Peterson 2017-09-04 10:09:12 -07:00 committed by GitHub
parent 1c1f8f30c0
commit fc96f1e95e
3 changed files with 3 additions and 37 deletions
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26
configure vendored
View File

@ -13543,32 +13543,6 @@ $as_echo "#define const /**/" >>confdefs.h
fi
works=no
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working volatile" >&5
$as_echo_n "checking for working volatile... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
volatile int x; x = 0;
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
works=yes
else
$as_echo "#define volatile /**/" >>confdefs.h
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $works" >&5
$as_echo "$works" >&6; }
works=no
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working signed char" >&5
$as_echo_n "checking for working signed char... " >&6; }

8
configure.ac
View File

@ -4080,14 +4080,6 @@ fi
AC_C_CHAR_UNSIGNED
AC_C_CONST
works=no
AC_MSG_CHECKING(for working volatile)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[volatile int x; x = 0;]])],
[works=yes],
[AC_DEFINE(volatile, , [Define to empty if the keyword does not work.])]
)
AC_MSG_RESULT($works)
works=no
AC_MSG_CHECKING(for working signed char)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[signed char c;]])],

6
pyconfig.h.in
View File

@ -775,6 +775,9 @@
/* Define to 1 if you have the `sched_setscheduler' function. */
#undef HAVE_SCHED_SETSCHEDULER
/* Define to 1 if you have the `select' function. */
#undef HAVE_SELECT
/* Define to 1 if you have the `sem_getvalue' function. */
#undef HAVE_SEM_GETVALUE
@ -1505,9 +1508,6 @@
/* Define to `int' if <sys/types.h> doesn't define. */
#undef uid_t
/* Define to empty if the keyword does not work. */
#undef volatile
/* Define the macros needed if on a UnixWare 7.x system. */
#if defined(__USLC__) && defined(__SCO_VERSION__)