Mine

Index: terrain.c
===================================================================
--- terrain.c	(Revision 420)
+++ terrain.c	(Arbeitskopie)
@@ -31,6 +31,7 @@
 float *pointtable;
 int brushnum = 0;
 int pointsize = 200;
+int verbose = 1;
 //

 /*
@@ -43,7 +44,8 @@
 // runtime printing to screen - lets the user know something is actually happening.
 void write_vec(vec3 v)
 {
-	printf("(%3.f %3.f %3.f) \n",
+	if (verbose)
+		printf("(%3.f %3.f %3.f) \n",
 			v[0], v[1], v[2]);
 }

@@ -359,7 +361,7 @@
 unsigned int		bytesPerPixel;

 int loadImage(char *filename)
-{
+{
 	unsigned char		TGAheader[12]={0,0,2,0,0,0,0,0,0,0,0,0};
 	unsigned char		TGAcompare[12];
 	unsigned char		header[6];
@@ -394,7 +396,7 @@

 	width  = header[1] * 256 + header[0];			// Determine The TGA Width	(highbyte*256+lowbyte)
 	height = header[3] * 256 + header[2];			// Determine The TGA Height	(highbyte*256+lowbyte)
-
+
  	if(	width	<=0	||								// Is The Width Less Than Or Equal To Zero
 		height	<=0	||								// Is The Height Less Than Or Equal To Zero
 		(header[4]!=24 && header[4]!=32))					// Is The TGA 24 or 32 Bit?
@@ -506,13 +508,13 @@
 		if (!strcmp(argv[i], "-image"))
 		{
 			int pos;
+			char *ext;
 			strcpy(imagename, argv[++i]);
 			pos = strlen(imagename);
-			imagename[pos++] = '.';
-			imagename[pos++] = 't';
-			imagename[pos++] = 'g';
-			imagename[pos++] = 'a';
-			imagename[pos++] = 0;
+			ext = strstr(imagename, ".");
+			if (ext)
+				*ext = '\0';
+			strcat(imagename, ".tga");
 			continue;
 		}

@@ -556,7 +558,11 @@
 		sprintf (buf, "terrain.map"); // should never really happen

 	success = loadImage(imagename);
-
+	if (!success)
+	{
+		printf ("Could not load image: %s\n", imagename);
+	}
+
 	file = fopen(buf, "wt");

 #ifdef _WIN32
@@ -829,6 +835,11 @@
 			continue;
 		}

+		if (!strcmp(argv[i], "-silent"))
+		{
+			verbose = 0;
+		}
+
 		if (!strcmp(argv[i], "-image"))
 		{
 			return main3(argc, argv);