Quick implementation of sigwait. Doesn't handle thread cancelation

yet, but should work...

libc/signal/Makefile

@@ -1,7 +1,6 @@
 # Makefile for uClibc
 #
-# Copyright (C) 2000 by Lineo, inc.
-# Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org>
+# Copyright (C) 2000-2003 Erik Andersen <andersen@uclibc.org>
 #
 # This program is free software; you can redistribute it and/or modify it under
 # the terms of the GNU Library General Public License as published by the Free
@@ -16,10 +15,6 @@
 # You should have received a copy of the GNU Library General Public License
 # along with this program; if not, write to the Free Software Foundation, Inc.,
 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-#
-# Derived in part from the Linux-8086 C library, the GNU C Library, and several
-# other sundry sources.  Files within this library are copyright by their
-# respective copyright holders.
 
 TOPDIR=../../
 include $(TOPDIR)Rules.mak
@@ -28,7 +23,7 @@ CSRC= allocrtsig.c killpg.c raise.c sigaction.c sigaddset.c sigandset.c \
 	sigblock.c sigdelset.c sigempty.c sigfillset.c siggetmask.c sighold.c \
 	sigignore.c sigintr.c sigisempty.c sigismem.c sigjmp.c signal.c \
 	sigorset.c sigpause.c sigrelse.c sigset.c sigsetmask.c sigsetops.c \
-	sysv_signal.c
+	sysv_signal.c sigwait.c
 COBJS=$(patsubst %.c,%.o, $(CSRC))
 
 OBJS=$(COBJS)

libc/signal/sigwait.c

@@ -0,0 +1,33 @@
+/* vi: set sw=4 ts=4: */
+/* sigwait
+ *
+ * Copyright (C) 2003 by Erik Andersen <andersen@uclibc.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program 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 Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+
+int sigwait (const sigset_t *set, int *sig)
+{
+    int ret = 1;
+    if ((ret = sigwaitinfo(set, NULL)) != -1) {
+	*sig = ret;
+	return 0;
+    }
+    return 1;
+}