Put files only used for debugging under #if (DEBUGLEVEL > 0)

lib/common/cmp_debug.c

@@ -16,6 +16,7 @@
  * @brief compression/decompression debugging printing functions
  */
 
+#if (DEBUGLEVEL > 0)
 
 #ifndef ICU_ASW
 #  include <stdio.h>
@@ -85,3 +86,5 @@ void cmp_debug_print_impl(const char *fmt, ...)
 
 	cmp_debug_puts(print_buffer);
 }
+
+#endif /* (DEBUGLEVEL > 0) */

lib/common/cmp_debug.h

@@ -23,19 +23,23 @@
 /* DEBUGLEVEL should be externally defined, usually via the compiler command
  * line.  Its value must be a numeric value. */
 #ifndef DEBUGLEVEL
+#  ifdef DEBUG
+#    define DEBUGLEVEL 1
+#  else
 #    define DEBUGLEVEL 0
 #  endif
+#endif
 
 
 #define PRINT_BUFFER_SIZE 256
 
 __extension__
-#if (defined(DEBUG) || DEBUGLEVEL > 0)
+#if (DEBUGLEVEL > 0)
 #  define debug_print(...) cmp_debug_print_impl(__VA_ARGS__)
+void cmp_debug_print_impl(const char *fmt, ...);
 #else
 #  define debug_print(...) do {} while (0)
 #endif
 
-void cmp_debug_print_impl(const char *fmt, ...);
 
 #endif /* CMP_DEBUG_H */

lib/common/vsnprintf.c

@@ -27,6 +27,8 @@
  *        reentrant!
  */
 
+#if (DEBUGLEVEL > 0)
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <stddef.h>
@@ -883,3 +885,4 @@ int my_vsnprintf(char* buffer, size_t count, const char* format, va_list va)
 	return _vsnprintf(_out_buffer, buffer, count, format, va);
 }
 
+#endif /* (DEBUGLEVEL > 0) */

lib/common/vsnprintf.h

@@ -20,6 +20,8 @@
 #ifndef VSNPRINTF_H
 #define VSNPRINTF_H
 
+#if (DEBUGLEVEL > 0)
 int my_vsnprintf(char* buffer, size_t count, const char* format, va_list va);
+#endif
 
 #endif /* VSNPRINTF_H */