--- asterisk-11.2.1-orig/main/asterisk.c
+++ asterisk-11.2.1/main/asterisk.c
@@ -3891,11 +3891,41 @@
 #if HAVE_WORKING_FORK
 	if (ast_opt_always_fork || !ast_opt_no_fork) {
 #ifndef HAVE_SBIN_LAUNCHD
+#ifndef __UCLIBC__
 		if (daemon(1, 0) < 0) {
 			fprintf(stderr, "daemon() failed: %s\n", strerror(errno));
-		} else {
-			ast_mainpid = getpid();
 		}
+#else
+		/*
+		 * workaround for uClibc-0.9.29 mipsel bug:
+		 * recursive mutexes do not work if uClibc daemon() function has been called,
+		 * if parent thread locks a mutex
+		 * the child thread cannot acquire a lock with the same name
+		 * (same code works if daemon() is not called)
+		 * but duplication of uClibc daemon.c code in here does work.
+		 */
+		int fd;
+		switch (fork()) {
+			case -1:
+				exit(1);
+			case 0:
+				break;
+			default:
+				_exit(0);
+		}
+		if (setsid() == -1)
+			exit(1);
+		if (fork())
+			_exit(0);
+		if ((fd = open("/dev/null", O_RDWR, 0)) != -1) {
+			dup2(fd, STDIN_FILENO);
+			dup2(fd, STDOUT_FILENO);
+			dup2(fd, STDERR_FILENO);
+			if (fd > 2)
+				close(fd);
+		}
+#endif
+		ast_mainpid = getpid();
 #else
 		fprintf(stderr, "Mac OS X detected.  Use 'launchctl load /Library/LaunchDaemon/org.asterisk.asterisk.plist'.\n");
 #endif