diff --git a/docs/examples/anyauthput.c b/docs/examples/anyauthput.c
index 11c9d3c77c88abaf1a2311ec4d079d9bf89bb28c..dd5b5ddf7cf2897923c6987428ce7210e79736a7 100644
--- a/docs/examples/anyauthput.c
+++ b/docs/examples/anyauthput.c
@@ -13,7 +13,9 @@
 #ifdef WIN32
 #  include <io.h>
 #else
-#  include <stdint.h>
+#  ifndef __VMS
+#    include <stdint.h>
+#  endif
 #  include <unistd.h>
 #endif
 #include <sys/types.h>
diff --git a/docs/examples/debug.c b/docs/examples/debug.c
index 543a565eb93d07d52738dc0e582b810ddadacba5..30ce820cc005e037c4d1c6f9150ab017f3c668b8 100644
--- a/docs/examples/debug.c
+++ b/docs/examples/debug.c
@@ -29,11 +29,12 @@ void dump(const char *text,
     /* without the hex output, we can fit more on screen */
     width = 0x40;
 
-  fprintf(stream, "%s, %zd bytes (0x%zx)\n", text, size, size);
+  fprintf(stream, "%s, %010.10ld bytes (0x%08.8lx)\n",
+          text, (long)size, (long)size);
 
   for(i=0; i<size; i+= width) {
 
-    fprintf(stream, "%04zx: ", i);
+    fprintf(stream, "%04.4lx: ", (long)i);
 
     if(!nohex) {
       /* hex not disabled, show it */
diff --git a/docs/examples/ftpupload.c b/docs/examples/ftpupload.c
index 76fc92ebbe3c838133a3f6d65e7dc44459abeef2..a727924797b6be754b6d89f861d37bf78baaed22 100644
--- a/docs/examples/ftpupload.c
+++ b/docs/examples/ftpupload.c
@@ -65,7 +65,7 @@ int main(int argc, char **argv)
     printf("Couldnt open '%s': %s\n", LOCAL_FILE, strerror(errno));
     return 1;
   }
-  printf("Local file size: %ld bytes.\n", file_info.st_size);
+  printf("Local file size: %ld bytes.\n", (long)file_info.st_size);
 
   /* get a FILE * of the same file */
   hd_src = fopen(LOCAL_FILE, "rb");
diff --git a/docs/examples/multi-debugcallback.c b/docs/examples/multi-debugcallback.c
index 6a7403a8a1db25764a6589b38a0179c552fa4a20..22d26c7744c8c72daee061599415063109606a6b 100644
--- a/docs/examples/multi-debugcallback.c
+++ b/docs/examples/multi-debugcallback.c
@@ -38,11 +38,12 @@ void dump(const char *text,
     /* without the hex output, we can fit more on screen */
     width = 0x40;
 
-  fprintf(stream, "%s, %zd bytes (0x%zx)\n", text, size, size);
+  fprintf(stream, "%s, %010.10ld bytes (0x%08.8lx)\n",
+          text, (long)size, (long)size);
 
   for(i=0; i<size; i+= width) {
 
-    fprintf(stream, "%04zx: ", i);
+    fprintf(stream, "%04.4lx: ", (long)i);
 
     if(!nohex) {
       /* hex not disabled, show it */
@@ -74,7 +75,7 @@ void dump(const char *text,
 
 static
 int my_trace(CURL *handle, curl_infotype type,
-             char *data, size_t size,
+             unsigned char *data, size_t size,
              void *userp)
 {
   const char *text;