Remove unused variables

fractal.c

@@ -38,7 +38,6 @@ usage(void)
 int
 main(int argc, char *argv[])
 {
-	char *end;
 	long seed;
 	int ch;
 

fun-gen.c

@@ -27,8 +27,6 @@
 
 #define MAX_DEGREE 1000
 
-static char *argv0;
-
 struct poly {
 	unsigned int degree;
 	double *coefs;
@@ -239,12 +237,8 @@ do_newton(int argc, char *argv[])
 int
 main(int argc, char *argv[])
 {
-	struct poly p, q;
-	char *end;
-	unsigned int i, j, p_degree, q_degree;
 	int ch, nflag;
 
-	argv0 = argv[0];
 	nflag = 0;
 	while ((ch = getopt(argc, argv, "n")) != -1)
 		switch (ch) {

julia.c

@@ -73,7 +73,7 @@ iterate(long double complex z, long double complex c, long double *rit)
 {
 	long double complex dz = 1.0L;
 	long double t;
-	unsigned long ci, i;
+	unsigned long i;
 
 	for (i = 0; i < niters && cabsl(z) < bailout; i++) {
 		dz = df(z) * dz;
@@ -100,7 +100,7 @@ static long
 fast_iterate(long double complex z, long double complex c, long double *rit)
 {
 	long double t;
-	unsigned long ci, i;
+	unsigned long i;
 
 	for (i = 0; i < niters && cabsl(z) < bailout; i++) {
 		z = f(z) + c;
@@ -139,7 +139,6 @@ julia_main(int argc, char *argv[])
 		long long it;
 		long double rit;
 	} *rescache;
-	char *end;
 	struct color color;
 	long double complex crit, julia, z;
 	long double julia_x = 0.0,
@@ -151,7 +150,6 @@ julia_main(int argc, char *argv[])
 	    displacement = 0,
 	    zoom = 1.0,
 	    light, light_x, light_y, light_z, rit, sec_h, zx, zy;
-	intmax_t v;
 	long long it, idx, ritnum;
 	unsigned int palette_size = 720,
 	    width = 640,

palette.c

@@ -83,8 +83,6 @@ int
 palette_main(int argc, char *argv[])
 {
 	struct color *palette;
-	char *end;
-	uintmax_t v;
 	unsigned int width, height;
 	int ch, i, j;
 

util.c

@@ -46,9 +46,7 @@ void
 errx(int eval, const char *fmt, ...)
 {
 	va_list ap;
-	int saved_errno;
 
-	saved_errno = errno;
 	va_start(ap, fmt);
 	if (fmt != NULL) {
 		fprintf(stderr, "%s: ", xgetprogname());