Add missing variable declaration for PPC code

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@159093 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_festival.c

@@ -129,6 +129,7 @@ static int send_waveform_to_fd(char *waveform, int length, int fd)
 	int res;
 #ifdef __PPC__ 
 	char c;
+	int x;
 #endif
 
 	res = ast_safe_fork(0);