@@ -1335,11 +1335,11 @@
 	AC_CHECK_FUNCS([fcntl nanosleep])
 	;;
 esac
 
 AC_CHECK_HEADERS(xlocale.h)
-AC_CHECK_FUNCS([strtod_l strtof_l asprintf_l])
+AC_CHECK_FUNCS([strtod_l strtof_l asprintf_l uselocale])
 AS_IF([test x"$gnu_source" != x"yes" -a \( \
     x"$ac_cv_func_strtod_l" = x"yes" -o x"$ac_cv_func_strtof_l" = x"yes" -o \
     x"$ac_cv_func_asprintf_l" = x"yes" \)], [
 	AC_MSG_CHECKING(whether *_l functions need _GNU_SOURCE)
 	AC_COMPILE_IFELSE([