diff --git a/contrib/minizip/minizip.c b/contrib/minizip/minizip.c
index 7f937aa5b..5896e6f79 100644
--- a/contrib/minizip/minizip.c
+++ b/contrib/minizip/minizip.c
@@ -277,7 +277,7 @@ int main(argc,argv)
 
                 while ((*p)!='\0')
                 {
-                    char c=*(p++);;
+                    char c=*(p++);
                     if ((c=='o') || (c=='O'))
                         opt_overwrite = 1;
                     if ((c=='a') || (c=='A'))
diff --git a/examples/gzjoin.c b/examples/gzjoin.c
index 89e809844..d7cf21bb7 100644
--- a/examples/gzjoin.c
+++ b/examples/gzjoin.c
@@ -63,11 +63,10 @@
 #define local static
 
 /* exit with an error (return a value to allow use in an expression) */
-local int bail(char *why1, char *why2)
+local void bail(char *why1, char *why2)
 {
     fprintf(stderr, "gzjoin error: %s%s, output incomplete\n", why1, why2);
     exit(1);
-    return 0;
 }
 
 /* -- simple buffered file input with access to the buffer -- */
diff --git a/examples/gznorm.c b/examples/gznorm.c
index 68e0a0f29..40b75d0b2 100644
--- a/examples/gznorm.c
+++ b/examples/gznorm.c
@@ -83,7 +83,7 @@ local char *aprintf(char *fmt, ...) {
 // and assures that gzip_normalize applied a second time will not change the
 // input. The pad bits after stored block headers and after the final deflate
 // block are all forced to zeros.
-local int gzip_normalize(FILE *in, FILE *out, char **err) {
+local void gzip_normalize(FILE *in, FILE *out, char **err) {
     // initialize the inflate engine to process a gzip member
     z_stream strm;
     strm.zalloc = Z_NULL;
@@ -451,7 +451,6 @@ local int gzip_normalize(FILE *in, FILE *out, char **err) {
 
     // All good!
     *err = NULL;
-    return 0;
 }
 
 // Normalize the gzip stream on stdin, writing the result to stdout.
@@ -462,9 +461,8 @@ int main(void) {
 
     // Normalize from stdin to stdout, returning 1 on error, 0 if ok.
     char *err;
-    int ret = gzip_normalize(stdin, stdout, &err);
-    if (ret)
-        fprintf(stderr, "gznorm error: %s\n", err);
+    gzip_normalize(stdin, stdout, &err);
     free(err);
-    return ret;
+
+    return 0;
 }