-# strtoimax.m4 serial 6
-dnl Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+# strtoimax.m4 serial 14
+dnl Copyright (C) 2002-2004, 2006, 2009-2014 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_STRTOIMAX],
[
- dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.
- AC_REQUIRE([AC_PROG_CPP])
- AC_REQUIRE([AC_PROG_EGREP])
+ AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
- AC_CACHE_CHECK([whether <inttypes.h> defines strtoimax as a macro],
- gl_cv_func_strtoimax_macro,
- [AC_EGREP_CPP([inttypes_h_defines_strtoimax], [#include <inttypes.h>
-#ifdef strtoimax
- inttypes_h_defines_strtoimax
-#endif],
- gl_cv_func_strtoimax_macro=yes,
- gl_cv_func_strtoimax_macro=no)])
+ dnl On OSF/1 5.1 with cc, this function is declared but not defined.
+ AC_CHECK_FUNCS_ONCE([strtoimax])
+ AC_CHECK_DECLS_ONCE([strtoimax])
+ if test "$ac_cv_have_decl_strtoimax" != yes; then
+ HAVE_DECL_STRTOIMAX=0
+ fi
- if test "$gl_cv_func_strtoimax_macro" != yes; then
- AC_REPLACE_FUNCS(strtoimax)
- if test $ac_cv_func_strtoimax = no; then
- gl_PREREQ_STRTOIMAX
+ if test "$ac_cv_func_strtoimax" = yes; then
+ HAVE_STRTOIMAX=1
+ dnl On AIX 5.1, strtoimax() fails for values outside the 'int' range.
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ AC_CACHE_CHECK([whether strtoimax works], [gl_cv_func_strtoimax],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <errno.h>
+#include <string.h>
+#include <inttypes.h>
+int main ()
+{
+ if (sizeof (intmax_t) > sizeof (int))
+ {
+ const char *s = "4294967295";
+ char *p;
+ intmax_t res;
+ errno = 0;
+ res = strtoimax (s, &p, 10);
+ if (p != s + strlen (s))
+ return 1;
+ if (errno != 0)
+ return 2;
+ if (res != (intmax_t) 65535 * (intmax_t) 65537)
+ return 3;
+ }
+ else
+ {
+ const char *s = "2147483647";
+ char *p;
+ intmax_t res;
+ errno = 0;
+ res = strtoimax (s, &p, 10);
+ if (p != s + strlen (s))
+ return 1;
+ if (errno != 0)
+ return 2;
+ if (res != 2147483647)
+ return 3;
+ }
+ return 0;
+}
+]])],
+ [gl_cv_func_strtoimax=yes],
+ [gl_cv_func_strtoimax=no],
+ [case "$host_os" in
+ # Guess no on AIX 5.
+ aix5*) gl_cv_func_strtoimax="guessing no" ;;
+ # Guess yes otherwise.
+ *) gl_cv_func_strtoimax="guessing yes" ;;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_strtoimax" in
+ *no) REPLACE_STRTOIMAX=1 ;;
+ esac
+ else
+ if test "$ac_cv_have_decl_strtoimax" = yes; then
+ # HP-UX 11.11 has "#define strtoimax(...) ..." but no function.
+ REPLACE_STRTOIMAX=1
fi
+ HAVE_STRTOIMAX=0
fi
])
# Prerequisites of lib/strtoimax.c.
AC_DEFUN([gl_PREREQ_STRTOIMAX], [
- AC_CHECK_DECLS(strtoll)
+ AC_CHECK_DECLS([strtoll])
AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
])