--- a/include/locale
+++ b/include/locale
@@ -10,7 +10,6 @@
 
 #ifndef _LIBCPP_LOCALE
 #define _LIBCPP_LOCALE
-
 /*
     locale synopsis
 
@@ -871,7 +870,7 @@ __num_get_signed_integral(const char* __a, const char* __a_end,
         typename remove_reference<decltype(errno)>::type __save_errno = errno;
         errno = 0;
         char *__p2;
-        long long __ll = strtoll_l(__a, &__p2, __base, _LIBCPP_GET_C_LOCALE);
+        long long __ll = strtoll(__a, &__p2, __base);
         typename remove_reference<decltype(errno)>::type __current_errno = errno;
         if (__current_errno == 0)
             errno = __save_errno;
@@ -911,7 +910,7 @@ __num_get_unsigned_integral(const char* __a, const char* __a_end,
         typename remove_reference<decltype(errno)>::type __save_errno = errno;
         errno = 0;
         char *__p2;
-        unsigned long long __ll = strtoull_l(__a, &__p2, __base, _LIBCPP_GET_C_LOCALE);
+        unsigned long long __ll = strtoull(__a, &__p2, __base);
         typename remove_reference<decltype(errno)>::type __current_errno = errno;
         if (__current_errno == 0)
             errno = __save_errno;
@@ -941,7 +940,7 @@ __num_get_float(const char* __a, const char* __a_end, ios_base::iostate& __err)
         typename remove_reference<decltype(errno)>::type __save_errno = errno;
         errno = 0;
         char *__p2;
-        long double __ld = strtold_l(__a, &__p2, _LIBCPP_GET_C_LOCALE);
+        long double __ld = strtold(__a, &__p2);
         typename remove_reference<decltype(errno)>::type __current_errno = errno;
         if (__current_errno == 0)
             errno = __save_errno;
--- a/src/locale.cpp
+++ b/src/locale.cpp
@@ -1010,7 +1010,7 @@ ctype<char>::do_narrow(const char_type* low, const char_type* high, char dfault,
     return low;
 }
 
-#if defined(__EMSCRIPTEN__)
+#ifdef __linux__
 extern "C" const unsigned short ** __ctype_b_loc();
 extern "C" const int ** __ctype_tolower_loc();
 extern "C" const int ** __ctype_toupper_loc();
@@ -1112,20 +1112,8 @@ ctype<char>::classic_table()  _NOEXCEPT
     return _ctype+1; // internal ctype mask table defined in msvcrt.dll
 // This is assumed to be safe, which is a nonsense assumption because we're
 // going to end up dereferencing it later...
-#elif defined(__EMSCRIPTEN__)
-    return *__ctype_b_loc();
-#elif defined(_NEWLIB_VERSION)
-    // Newlib has a 257-entry table in ctype_.c, where (char)0 starts at [1].
-    return _ctype_ + 1;
-#elif defined(_AIX)
-    return (const unsigned int *)__lc_ctype_ptr->obj->mask;
 #else
-    // Platform not supported: abort so the person doing the port knows what to
-    // fix
-# warning  ctype<char>::classic_table() is not implemented
-    printf("ctype<char>::classic_table() is not implemented\n");
-    abort();
-    return NULL;
+    return (const unsigned long *)*__ctype_b_loc();
 #endif
 }
 #endif