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#serial 16
dnl This macro is intended to be used solely in this file.
dnl These are the prerequisite macros for GNU's strftime.c replacement.
AC_DEFUN(_jm_STRFTIME_PREREQS,
[
dnl strftime.c uses localtime_r and the underyling system strftime
dnl if they exist.
AC_CHECK_FUNCS(localtime_r strftime)
AC_CHECK_HEADERS(limits.h)
AC_CHECK_FUNCS(bcopy tzset mempcpy memcpy memset)
# This defines (or not) HAVE_TZNAME and HAVE_TM_ZONE.
AC_STRUCT_TIMEZONE
AC_CHECK_FUNCS(mblen mbrlen)
AC_CHECK_MEMBER([struct tm.tm_gmtoff],
[AC_DEFINE(HAVE_TM_GMTOFF, 1,
[Define if struct tm has the tm_gmtoff member.])],
,
[#include <time.h>])
])
dnl From Jim Meyering.
dnl
AC_DEFUN(jm_FUNC_GNU_STRFTIME,
[AC_REQUIRE([AC_HEADER_TIME])dnl
_jm_STRFTIME_PREREQS
AC_REQUIRE([AC_C_CONST])dnl
AC_REQUIRE([AC_HEADER_STDC])dnl
AC_CHECK_HEADERS(sys/time.h)
AC_DEFINE([my_strftime], [nstrftime],
[Define to the name of the strftime replacement function.])
])
AC_DEFUN(jm_FUNC_STRFTIME,
[
_jm_STRFTIME_PREREQS
])
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