- 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)])
-
- if test "$gl_cv_func_strtoumax_macro" != yes; then
- AC_REPLACE_FUNCS(strtoumax)
- if test $ac_cv_func_strtoumax = no; then
- gl_PREREQ_STRTOUMAX
+ dnl On OSF/1 5.1 with cc, this function is declared but not defined.
+ AC_CHECK_FUNCS_ONCE([strtoumax])
+ AC_CHECK_DECLS_ONCE([strtoumax])
+ if test "$ac_cv_have_decl_strtoumax" = yes; then
+ if test "$ac_cv_func_strtoumax" != yes; then
+ # HP-UX 11.11 has "#define strtoimax(...) ..." but no function.
+ REPLACE_STRTOUMAX=1