- AC_REQUIRE([AC_SYS_LARGEFILE]) dnl for a sufficently-wide off_t
-
- AC_CACHE_CHECK([whether off_t can be used in a switch statement],
- [gl_cv_type_off_t_switch],
- [AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [AC_INCLUDES_DEFAULT],
- [[off_t o = -1;
- switch (o)
- {
- case -2:
- return 1;
- case -1:
- return 2;
- default:
- return 0;
- }
- ]])],
- [gl_cv_type_off_t_switch=yes],
- [gl_cv_type_off_t_switch=no])])
- if test $gl_cv_type_off_t_switch = yes; then
- AC_DEFINE([_REGEX_LARGE_OFFSETS], 1,
- [Define if you want regoff_t to be at least as wide POSIX requires.])
- fi
-