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remove configure check for 'volatile' (#3281)

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This is a required feature is C99, which we require.
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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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8
configure.ac
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@ -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;]])],