diff --git a/libc/bionic/locale.cpp b/libc/bionic/locale.cpp
new file mode 100644
index 0000000..e20a1de
--- /dev/null
+++ b/libc/bionic/locale.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <locale.h>
+#include <pthread.h>
+#include <stdlib.h>
+
+static pthread_once_t locale_once = PTHREAD_ONCE_INIT;
+static lconv locale;
+
+static void __locale_init() {
+  locale.decimal_point = const_cast<char*>(".");
+
+  char* not_available = const_cast<char*>("");
+  locale.thousands_sep = not_available;
+  locale.grouping = not_available;
+  locale.int_curr_symbol = not_available;
+  locale.currency_symbol = not_available;
+  locale.mon_decimal_point = not_available;
+  locale.mon_thousands_sep = not_available;
+  locale.mon_grouping = not_available;
+  locale.positive_sign = not_available;
+  locale.negative_sign = not_available;
+
+  locale.int_frac_digits = CHAR_MAX;
+  locale.frac_digits = CHAR_MAX;
+  locale.p_cs_precedes = CHAR_MAX;
+  locale.p_sep_by_space = CHAR_MAX;
+  locale.n_cs_precedes = CHAR_MAX;
+  locale.n_sep_by_space = CHAR_MAX;
+  locale.p_sign_posn = CHAR_MAX;
+  locale.n_sign_posn = CHAR_MAX;
+  locale.int_p_cs_precedes = CHAR_MAX;
+  locale.int_p_sep_by_space = CHAR_MAX;
+  locale.int_n_cs_precedes = CHAR_MAX;
+  locale.int_n_sep_by_space = CHAR_MAX;
+  locale.int_p_sign_posn = CHAR_MAX;
+  locale.int_n_sign_posn = CHAR_MAX;
+}
+
+lconv* localeconv() {
+  pthread_once(&locale_once, __locale_init);
+  return &locale;
+}
+
+// setlocale(3) always fails on bionic.
+char* setlocale(int /*category*/, char const* /*locale*/) {
+  return NULL;
+}