diff --git a/libpthread/Makefile b/libpthread/Makefile
index 22247d94..46c79323 100644
--- a/libpthread/Makefile
+++ b/libpthread/Makefile
@@ -13,6 +13,8 @@ CXXFLAGS:=$(CXXFLAGS) -Wall -Wextra -fno-exceptions -fno-rtti
OBJS=\
pthread_equal.o \
pthread_initialize.o \
+pthread_mutexattr_destroy.o \
+pthread_mutexattr_init.o \
pthread_mutex_destroy.o \
pthread_mutex_init.o \
pthread_mutex_lock.o \
diff --git a/libpthread/include/__/pthread.h b/libpthread/include/__/pthread.h
index 249c03ee..8c96fa94 100644
--- a/libpthread/include/__/pthread.h
+++ b/libpthread/include/__/pthread.h
@@ -63,7 +63,15 @@ typedef struct
} __pthread_mutex_t;
#endif
-typedef int __pthread_mutexattr_t;
+#if defined(__is_sortix_libpthread)
+typedef struct
+{
+} __pthread_mutexattr_t;
+#else
+typedef struct
+{
+} __pthread_mutexattr_t;
+#endif
typedef int __pthread_once_t;
diff --git a/libpthread/include/pthread.h b/libpthread/include/pthread.h
index d4b1367e..d2e8fac8 100644
--- a/libpthread/include/pthread.h
+++ b/libpthread/include/pthread.h
@@ -213,13 +213,13 @@ int pthread_mutex_lock(pthread_mutex_t*);
/* TODO: pthread_mutex_timedlock */
int pthread_mutex_trylock(pthread_mutex_t*);
int pthread_mutex_unlock(pthread_mutex_t*);
-/* TODO: pthread_mutexattr_destroy */
+int pthread_mutexattr_destroy(pthread_mutexattr_t*);
/* TODO: pthread_mutexattr_getprioceiling */
/* TODO: pthread_mutexattr_getprotocol */
/* TODO: pthread_mutexattr_getpshared */
/* TODO: pthread_mutexattr_getrobust */
/* TODO: pthread_mutexattr_gettype */
-/* TODO: pthread_mutexattr_init */
+int pthread_mutexattr_init(pthread_mutexattr_t*);
/* TODO: pthread_mutexattr_setprioceiling */
/* TODO: pthread_mutexattr_setprotocol */
/* TODO: pthread_mutexattr_setpshared */
diff --git a/libpthread/pthread_mutexattr_destroy.c++ b/libpthread/pthread_mutexattr_destroy.c++
new file mode 100644
index 00000000..0df7d363
--- /dev/null
+++ b/libpthread/pthread_mutexattr_destroy.c++
@@ -0,0 +1,30 @@
+/*******************************************************************************
+
+ Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+ This file is part of Sortix libpthread.
+
+ Sortix libpthread 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.
+
+ Sortix libpthread 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 Sortix libpthread. If not, see .
+
+ pthread_mutexattr_destroy.c++
+ Destroys a mutex attributes object.
+
+*******************************************************************************/
+
+#include
+
+extern "C" int pthread_mutexattr_destroy(pthread_mutexattr_t* /*attr*/)
+{
+ return 0;
+}
diff --git a/libpthread/pthread_mutexattr_init.c++ b/libpthread/pthread_mutexattr_init.c++
new file mode 100644
index 00000000..4debce55
--- /dev/null
+++ b/libpthread/pthread_mutexattr_init.c++
@@ -0,0 +1,32 @@
+/*******************************************************************************
+
+ Copyright(C) Jonas 'Sortie' Termansen 2013.
+
+ This file is part of Sortix libpthread.
+
+ Sortix libpthread 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.
+
+ Sortix libpthread 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 Sortix libpthread. If not, see .
+
+ pthread_mutexattr_init.c++
+ Initialize a mutex attributes object.
+
+*******************************************************************************/
+
+#include
+#include
+
+extern "C" int pthread_mutexattr_init(pthread_mutexattr_t* attr)
+{
+ memset(attr, 0, sizeof(*attr));
+ return 0;
+}