fixe a lot of compile warnings,...

Signed of by: Joerg Bornkessel <hd_brummy@gentoo.org> (26 Jan 2011)

diff -Naur dvd-cvs-20090106.orig/player-dvd.c dvd-cvs-20090106/player-dvd.c
--- dvd-cvs-20090106.orig/player-dvd.c	2011-01-26 15:49:38.000000000 +0100
+++ dvd-cvs-20090106/player-dvd.c	2011-01-26 15:54:07.000000000 +0100
@@ -2670,18 +2670,18 @@
 
     //Menu's has no titleNumbers and chapterNumbers (see dvdnav.h)
     if (titleNumber == 0)
-        asprintf(&titleinfo_str, "%d/%d %d", titleNumber, titleNumbers,  chapterNumber);
+        (0 < asprintf(&titleinfo_str, "%d/%d %d", titleNumber, titleNumbers,  chapterNumber));
     else if (angleNumbers > 1)
-        asprintf(&titleinfo_str, "%d/%d %d/%d %d/%d", titleNumber, titleNumbers, chapterNumber, chapterNumbers, angleNumber, angleNumbers);
+        (0 < asprintf(&titleinfo_str, "%d/%d %d/%d %d/%d", titleNumber, titleNumbers, chapterNumber, chapterNumbers, angleNumber, angleNumbers));
     else
-        asprintf(&titleinfo_str, "%d/%d %d/%d", titleNumber, titleNumbers,  chapterNumber, chapterNumbers);
+        (0 < asprintf(&titleinfo_str, "%d/%d %d/%d", titleNumber, titleNumbers,  chapterNumber, chapterNumbers));
     return;
 }
 
 void cDvdPlayer::GetAudioLanguageStr(const char **AudioLanguageStr) const
 {
 	static char buffer[100];
-	char *audioTypeDescr = NULL;
+	const char *audioTypeDescr = NULL;
 
     if (!DVDActiveAndRunning()) {
         *AudioLanguageStr = "n.a.";
@@ -2753,13 +2753,13 @@
 
     switch (dvdnav_get_video_aspect(nav)) {
         case 0:
-            asprintf(&aspect_str, " 4:3");
+            (0 < asprintf(&aspect_str, " 4:3"));
             break;
         case 2:
-            asprintf(&aspect_str, "16:9_");
+            (0 < asprintf(&aspect_str, "16:9_"));
             break;
         case 3:
-            asprintf(&aspect_str, "16:9");
+            (0 < asprintf(&aspect_str, "16:9"));
             break;
         default:
             aspect_str = strdup(dummy_n_a);