- AC_CACHE_CHECK([whether <inttypes.h> defines strtoumax as a macro],
- gl_cv_func_strtoumax_macro,
- [AC_EGREP_CPP([inttypes_h_defines_strtoumax], [#include <inttypes.h>
-#ifdef strtoumax
- inttypes_h_defines_strtoumax
-#endif],
- gl_cv_func_strtoumax_macro=yes,
- gl_cv_func_strtoumax_macro=no)])
+ AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
+
+ AC_CHECK_DECLS_ONCE([strtoumax])
+ if test "$ac_cv_have_decl_strtoumax" != yes; then
+ HAVE_DECL_STRTOUMAX=0