AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(long long)
+dnl
+dnl Check for large file support. This check needs to come fairly
+dnl early because it could (in principle) affect whether functions and
+dnl headers are available, whether they work, etc.
+dnl
+AC_SYS_LARGEFILE
+AC_CHECK_SIZEOF(off_t)
+
dnl
dnl Checks for non-universal or system-specific types.
dnl
dnl
AC_FUNC_ALLOCA
AC_FUNC_MMAP
+AC_FUNC_FSEEKO
AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
-AC_CHECK_FUNCS(usleep select sigblock sigsetjmp signal symlink access isatty)
+AC_CHECK_FUNCS(usleep select ftello sigblock sigsetjmp signal)
+AC_CHECK_FUNCS(symlink access isatty)
dnl
dnl Call Wget's local macros defined in aclocal.