diff --git a/src/helper/command.h b/src/helper/command.h
old mode 100644
new mode 100755
index 2b9f1a1..01c50a2
--- a/src/helper/command.h
+++ b/src/helper/command.h
@@ -85,12 +85,12 @@ extern command_context_t* command_init(void);
 extern int command_done(command_context_t *context);
 
 extern void command_print(command_context_t *context, const char *format, ...)
-		__attribute__ ((format (printf, 2, 3)));
+		__attribute__ ((format (gnu_printf, 2, 3)));
 extern void command_print_sameline(command_context_t *context, const char *format, ...)
-		__attribute__ ((format (printf, 2, 3)));
+		__attribute__ ((format (gnu_printf, 2, 3)));
 extern int command_run_line(command_context_t *context, char *line);
 extern int command_run_linef(command_context_t *context, const char *format, ...)
-		__attribute__ ((format (printf, 2, 3)));
+		__attribute__ ((format (gnu_printf, 2, 3)));
 extern void command_output_text(command_context_t *context, const char *data);
 
 extern void process_jim_events(void);
diff --git a/src/helper/log.h b/src/helper/log.h
old mode 100644
new mode 100755
index 7fc5a88..11783d2
--- a/src/helper/log.h
+++ b/src/helper/log.h
@@ -52,10 +52,10 @@ enum log_levels
 
 extern void log_printf(enum log_levels level, const char *file, int line,
 	const char *function, const char *format, ...)
-__attribute__ ((format (printf, 5, 6)));
+__attribute__ ((format (gnu_printf, 5, 6)));
 extern void log_printf_lf(enum log_levels level, const char *file, int line,
 	const char *function, const char *format, ...)
-__attribute__ ((format (printf, 5, 6)));
+__attribute__ ((format (gnu_printf, 5, 6)));
 extern int log_register_commands(struct command_context_s *cmd_ctx);
 extern int log_init(struct command_context_s *cmd_ctx);
 extern int set_log_output(struct command_context_s *cmd_ctx, FILE *output);
diff --git a/src/target/arm11.h b/src/target/arm11.h
old mode 100644
new mode 100755
index 61c5f7f..1b9c8c2
--- a/src/target/arm11.h
+++ b/src/target/arm11.h
@@ -33,13 +33,15 @@
 	type * variable = calloc(1, sizeof(type) * items)
 
 /* For MinGW use 'I' prefix to print size_t (instead of 'z') */
+/* Except if __USE_MINGW_ANSI_STDIO is defined with MinGW    */
 
-#ifndef __MSVCRT__
+#if (!defined(__MSVCRT__) || defined(__USE_MINGW_ANSI_STDIO))
 #define ZU		"%zu"
 #else
 #define ZU		"%Iu"
 #endif
 
+
 #define ARM11_REGCACHE_MODEREGS		0
 #define ARM11_REGCACHE_FREGS		0