Index: libcfa/src/concurrency/preemption.cfa
===================================================================
--- libcfa/src/concurrency/preemption.cfa	(revision 926d358b53f0244704a93146d6216eb9d7932107)
+++ libcfa/src/concurrency/preemption.cfa	(revision c63f470d0c230caae911c9a24e792e36cc17034f)
@@ -352,5 +352,5 @@
 	sigset_t oldset;
 	int ret;
-	ret = pthread_sigmask(0, ( const sigset_t * ) 0p, &oldset);  // workaround trac#208: cast should be unnecessary
+	ret = __cfaabi_pthread_sigmask(0, ( const sigset_t * ) 0p, &oldset);  // workaround trac#208: cast should be unnecessary
 	if(ret != 0) { abort("ERROR sigprocmask returned %d", ret); }
 
@@ -385,5 +385,5 @@
 	sigaddset( &mask, sig );
 
-	if ( pthread_sigmask( SIG_UNBLOCK, &mask, 0p ) == -1 ) {
+	if ( __cfaabi_pthread_sigmask( SIG_UNBLOCK, &mask, 0p ) == -1 ) {
 	    abort( "internal error, pthread_sigmask" );
 	}
@@ -396,5 +396,5 @@
 	sigaddset( &mask, sig );
 
-	if ( pthread_sigmask( SIG_BLOCK, &mask, 0p ) == -1 ) {
+	if ( __cfaabi_pthread_sigmask( SIG_BLOCK, &mask, 0p ) == -1 ) {
 		abort( "internal error, pthread_sigmask" );
 	}
@@ -404,5 +404,5 @@
 static void preempt( processor * this ) {
 	sigval_t value = { PREEMPT_NORMAL };
-	pthread_sigqueue( this->kernel_thread, SIGUSR1, value );
+	__cfaabi_pthread_sigqueue( this->kernel_thread, SIGUSR1, value );
 }
 
@@ -415,5 +415,5 @@
 	sigset_t oldset;
 	int ret;
-	ret = pthread_sigmask(0, ( const sigset_t * ) 0p, &oldset);  // workaround trac#208: cast should be unnecessary
+	ret = __cfaabi_pthread_sigmask(0, ( const sigset_t * ) 0p, &oldset);  // workaround trac#208: cast should be unnecessary
 	if(ret != 0) { abort("ERROR sigprocmask returned %d", ret); }
 
@@ -434,5 +434,5 @@
 	sigset_t oldset;
 	int ret;
-	ret = pthread_sigmask(0, ( const sigset_t * ) 0p, &oldset);  // workaround trac#208: cast should be unnecessary
+	ret = __cfaabi_pthread_sigmask(0, ( const sigset_t * ) 0p, &oldset);  // workaround trac#208: cast should be unnecessary
 	if(ret != 0) { abort("ERROR sigprocmask returned %d", ret); }
 
@@ -505,5 +505,5 @@
 	sigval val;
 	val.sival_int = 0;
-	pthread_sigqueue( alarm_thread, SIGALRM, val );
+	__cfaabi_pthread_sigqueue( alarm_thread, SIGALRM, val );
 
 	// Wait for the preemption thread to finish
@@ -579,5 +579,5 @@
 	static_assert( sizeof( sigset_t ) == sizeof( cxt->uc_sigmask ), "Expected cxt->uc_sigmask to be of sigset_t" );
 	#endif
-	if ( pthread_sigmask( SIG_SETMASK, (sigset_t *)&(cxt->uc_sigmask), 0p ) == -1 ) {
+	if ( __cfaabi_pthread_sigmask( SIG_SETMASK, (sigset_t *)&(cxt->uc_sigmask), 0p ) == -1 ) {
 		abort( "internal error, sigprocmask" );
 	}
@@ -607,5 +607,5 @@
 	sigset_t mask;
 	sigfillset(&mask);
-	if ( pthread_sigmask( SIG_BLOCK, &mask, 0p ) == -1 ) {
+	if ( __cfaabi_pthread_sigmask( SIG_BLOCK, &mask, 0p ) == -1 ) {
 	    abort( "internal error, pthread_sigmask" );
 	}