+
+ dnl ********************************
+ dnl *** Checks for timezone stuff **
+ dnl ********************************
+ AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
+ AC_TRY_COMPILE([
+ #include <time.h>
+ ], [
+ timezone = 1;
+ ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
+ if test $ac_cv_var_timezone = yes; then
+ AC_DEFINE(HAVE_TIMEZONE)
+ else
+ AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
+ AC_TRY_COMPILE([
+ #include <time.h>
+ ], [
+ struct tm tm;
+ tm.tm_gmtoff = 1;
+ ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no))
+ if test $ac_cv_struct_tm_gmtoff = yes; then
+ AC_DEFINE(HAVE_TM_GMTOFF)
+ else
+ AC_ERROR(unable to find a way to determine timezone)
+ fi
+ fi