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#serial 1
dnl Cloned from xstrtoumax.m4. Keep these files in sync.
# autoconf tests required for use of xstrtoimax.c
AC_DEFUN([jm_AC_PREREQ_XSTRTOIMAX],
[
AC_REQUIRE([jm_AC_TYPE_INTMAX_T])
AC_REQUIRE([jm_AC_HEADER_INTTYPES_H])
AC_REQUIRE([jm_AC_TYPE_LONG_LONG])
AC_CHECK_DECLS([strtol, strtoll])
AC_CHECK_HEADERS(limits.h stdlib.h)
AC_CACHE_CHECK([whether <inttypes.h> defines strtoimax as a macro],
jm_cv_func_strtoimax_macro,
AC_EGREP_CPP([inttypes_h_defines_strtoimax], [#include <inttypes.h>
#ifdef strtoimax
inttypes_h_defines_strtoimax
#endif],
jm_cv_func_strtoimax_macro=yes,
jm_cv_func_strtoimax_macro=no))
if test "$jm_cv_func_strtoimax_macro" != yes; then
AC_REPLACE_FUNCS(strtoimax)
fi
dnl We don't need (and can't compile) the replacement strtoll
dnl unless the type `long long' exists.
dnl Also, only the replacement strtoimax invokes strtoll,
dnl so we need the replacement strtoll only if strtoimax does not exist.
case "$ac_cv_type_long_long,$jm_cv_func_strtoimax_macro,$ac_cv_func_strtoimax" in
yes,no,no)
AC_REPLACE_FUNCS(strtoll)
dnl Check for strtol. Mainly as a cue to cause automake to include
dnl strtol.c -- that file is included by each of strtoul.c and strtoull.c.
AC_REPLACE_FUNCS(strtol)
;;
esac
case "$jm_cv_func_strtoimax_macro,$ac_cv_func_strtoimax" in
no,no)
AC_REPLACE_FUNCS(strtoul)
dnl See explanation above.
AC_REPLACE_FUNCS(strtol)
;;
esac
])
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