Try to work towards the breakage

Author: ldionne

libcxx/include/__locale_dir/locale_base_api/bsd_locale_defaults.h

@@ -27,7 +27,9 @@
 #define __libcpp_mbrtowc_l(pwc, s, n, ps, l) mbrtowc_l(pwc, s, n, ps, l)
 #define __libcpp_mbtowc_l(pwc, pmb, max, l) mbtowc_l(pwc, pmb, max, l)
 #define __libcpp_mbrlen_l(s, n, ps, l) mbrlen_l(s, n, ps, l)
-#define __libcpp_localeconv_l(l) localeconv_l(l)
+inline _LIBCPP_HIDE_FROM_ABI lconv* __libcpp_localeconv_l(locale_t __loc) {
+    return localeconv_l(__loc);
+}
 #define __libcpp_mbsrtowcs_l(dest, src, len, ps, l) mbsrtowcs_l(dest, src, len, ps, l)
 #define __libcpp_snprintf_l(...) snprintf_l(__VA_ARGS__)
 #define __libcpp_asprintf_l(...) asprintf_l(__VA_ARGS__)