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BUG#25601 Missing m4 macro MYSQL_CHECK_TIME_T

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df@pippilotta.erinye.com 2007-03-09 10:17:21 +01:00
parent 7665f50e9c
commit 43a57774d9
1 changed files with 24 additions and 0 deletions
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24
config/ac-macros/misc.m4
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@ -790,3 +790,27 @@ esac
AC_SUBST(AR) AC_SUBST(AR)
AC_SUBST(ARFLAGS) AC_SUBST(ARFLAGS)
]) ])
dnl
dnl Macro to check time_t range: according to C standard
dnl array index must be greater than 0 => if time_t is signed,
dnl the code in the macros below won't compile.
dnl
AC_DEFUN([MYSQL_CHECK_TIME_T],[
AC_MSG_CHECKING(if time_t is unsigned)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[
#include <time.h>
]],
[[
int array[(((time_t)-1) > 0) ? 1 : -1];
]] )
], [
AC_DEFINE([TIME_T_UNSIGNED], 1, [Define to 1 if time_t is unsigned])
AC_MSG_RESULT(yes)
],
[AC_MSG_RESULT(no)]
)
])