3 # autoconf tests required for use of xstrtoumax.c
5 AC_DEFUN(jm_AC_PREREQ_XSTRTOUMAX,
7 AC_REQUIRE([jm_AC_HEADER_INTTYPES_H])
8 AC_REQUIRE([jm_AC_TYPE_UNSIGNED_LONG_LONG])
9 AC_CHECK_HEADERS(stdlib.h)
10 AC_CHECK_FUNCS(strtoull strtoumax strtouq)
11 AC_REPLACE_FUNCS(strtoumax)
13 dnl We don't need (and can't compile) the replacement strtoull
14 dnl unless the type `unsigned long long' exists.
15 dnl Also, only the replacement strtoumax invokes strtoull,
16 dnl so we need the replacement strtoull only if strtoumax does not exist.
17 case "$ac_cv_type_unsigned_long_long,$ac_cv_func_strtoumax" in
19 AC_REPLACE_FUNCS(strtoull)