Add pthread_equal(3).

libpthread/Makefile

@@ -11,6 +11,7 @@ CPPFLAGS:=$(CPPFLAGS) -D__is_sortix_libpthread -I include
 CXXFLAGS:=$(CXXFLAGS) -Wall -Wextra -fno-exceptions -fno-rtti
 
 OBJS=\
+pthread_equal.o \
 pthread_initialize.o \
 pthread_self.o \
 

libpthread/include/pthread.h

@@ -191,7 +191,7 @@ void pthread_initialize(void);
 /* TODO: pthread_condattr_setpshared */
 /* TODO: pthread_create */
 /* TODO: pthread_detach */
-/* TODO: pthread_equal */
+int pthread_equal(pthread_t, pthread_t);
 /* TODO: pthread_exit */
 /* TODO: pthread_getconcurrency */
 /* TODO: pthread_getcpuclockid */

libpthread/pthread_equal.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 <http://www.gnu.org/licenses/>.
+
+    pthread_equal.c++
+    Compares thread identities.
+
+*******************************************************************************/
+
+#include <pthread.h>
+
+extern "C" int pthread_equal(pthread_t t1, pthread_t t2)
+{
+	return t1 == t2 ? 1 : 0;
+}