diff --git a/libc/include/bits/strcasecmp.h b/libc/include/bits/strcasecmp.h
new file mode 100644
index 0000000..124f5cd
--- /dev/null
+++ b/libc/include/bits/strcasecmp.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#ifndef _BITS_STRCASECMP_H_
+#define _BITS_STRCASECMP_H_
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <xlocale.h>
+
+__BEGIN_DECLS
+
+int strcasecmp(const char*, const char*) __purefunc;
+int strcasecmp_l(const char*, const char*, locale_t) __purefunc;
+int strncasecmp(const char*, const char*, size_t) __purefunc;
+int strncasecmp_l(const char*, const char*, size_t, locale_t) __purefunc;
+
+__END_DECLS
+
+#endif
diff --git a/libc/include/string.h b/libc/include/string.h
index 32d4a18..dada52b 100644
--- a/libc/include/string.h
+++ b/libc/include/string.h
@@ -33,6 +33,8 @@
 #include <stddef.h>
 #include <xlocale.h>
 
+#include <bits/strcasecmp.h>
+
 __BEGIN_DECLS
 
 #if defined(__USE_BSD)
@@ -72,11 +74,6 @@
 extern char*  strcpy(char* __restrict, const char* __restrict);
 extern char*  strcat(char* __restrict, const char* __restrict);
 
-int strcasecmp(const char*, const char*) __purefunc;
-int strcasecmp_l(const char*, const char*, locale_t) __purefunc;
-int strncasecmp(const char*, const char*, size_t) __purefunc;
-int strncasecmp_l(const char*, const char*, size_t, locale_t) __purefunc;
-
 extern char*  strdup(const char *);
 
 extern char*  strstr(const char *, const char *) __purefunc;
diff --git a/libc/include/strings.h b/libc/include/strings.h
index 1253006..1200e77 100644
--- a/libc/include/strings.h
+++ b/libc/include/strings.h
@@ -43,6 +43,8 @@
 #include <sys/cdefs.h>
 #include <xlocale.h>
 
+#include <bits/strcasecmp.h>
+
 __BEGIN_DECLS
 #if defined(__BIONIC_FORTIFY)
 #define bcopy(b1, b2, len) (void)(__builtin___memmove_chk((b2), (b1), (len), __bos0(b2)))
@@ -54,11 +56,6 @@
 
 int ffs(int);
 
-int strcasecmp(const char*, const char*) __purefunc;
-int strcasecmp_l(const char*, const char*, locale_t) __purefunc;
-int strncasecmp(const char*, const char*, size_t) __purefunc;
-int strncasecmp_l(const char*, const char*, size_t, locale_t) __purefunc;
-
 __END_DECLS
 
 #endif /* !defined(_STRINGS_H_) */