diff --git a/libc/Makefile b/libc/Makefile
index 4672bfd1..e6d695d0 100644
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -120,6 +120,7 @@ strspn.o \
strstr.o \
strtok.o \
strtok_r.o \
+strxfrm.o \
ungetc.o \
vfscanf.o \
vsscanf.o \
diff --git a/libc/include/string.h b/libc/include/string.h
index f6d01ba8..40173bf0 100644
--- a/libc/include/string.h
+++ b/libc/include/string.h
@@ -61,6 +61,7 @@ size_t strspn(const char*, const char*);
char* strstr(const char*, const char*);
char* strtok(char* restrict, const char* restrict);
char* strtok_r(char* restrict, const char* restrict, char** restrict);
+size_t strxfrm(char* restrict, const char* restrict, size_t);
/* TODO: These are not implemented in sortix libc yet. */
#if defined(__SORTIX_SHOW_UNIMPLEMENTED)
@@ -68,7 +69,6 @@ int strcoll_l(const char*, const char*, locale_t);
char* strerror_l(int, locale_t);
int strerror_r(int, char*, size_t);
char* strsignal(int);
-size_t strxfrm(char* restrict, const char* restrict, size_t);
size_t strxfrm_l(char* restrict, const char* restrict, size_t, locale_t);
#endif
diff --git a/libc/strxfrm.cpp b/libc/strxfrm.cpp
new file mode 100644
index 00000000..995746aa
--- /dev/null
+++ b/libc/strxfrm.cpp
@@ -0,0 +1,32 @@
+/*******************************************************************************
+
+ Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
+
+ This file is part of the Sortix C Library.
+
+ The Sortix C Library is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or (at your
+ option) any later version.
+
+ The Sortix C Library is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with the Sortix C Library. If not, see .
+
+ strxfrm.cpp
+ Transform a string such that the result of strcmp is the same as strcoll.
+
+*******************************************************************************/
+
+#include
+
+extern "C" size_t strxfrm(char* dest, const char* src, size_t n)
+{
+ size_t srclen = strlen(src);
+ strncpy(dest, src, n);
+ return srclen;
+}