1.1 --- a/src/palman.c	Mon Nov 21 12:12:23 2011 +0200
     1.2 +++ b/src/palman.c	Mon Nov 21 12:45:18 2011 +0200
     1.3 @@ -61,10 +61,14 @@
     1.4  {
     1.5  	int i, j;
     1.6  
     1.7 +	if(!ncol) {
     1.8 +		return -1;
     1.9 +	}
    1.10 +
    1.11  	/* gradient range for each color */
    1.12  	range = MAX_COLORS / ncol;
    1.13  
    1.14 -	if(range == 1) {
    1.15 +	if(range <= 1) {
    1.16  		memcpy(pal, colors, ncol * sizeof *pal);
    1.17  		return 0;
    1.18  	}