(Optional) logf support

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6538 a1c6a512-1295-4272-9138-f99709370657

3 files changed, 13 insertions, 0 deletions

diff --git a/firmware/SOURCES b/firmware/SOURCES
index b6eeaec3f1..0ea55b382f 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -1,3 +1,4 @@
+logf.c
 #ifndef SIMULATOR
 backlight.c
 #endif
diff --git a/firmware/export/logf.h b/firmware/export/logf.h
index af7d7eeb34..f74f50377e 100644
--- a/firmware/export/logf.h
+++ b/firmware/export/logf.h
@@ -18,6 +18,9 @@
  ****************************************************************************/
 #ifndef LOGF_H
 #define LOGF_H
+#include <config.h>
+
+#ifdef ROCKBOX_HAS_LOGF
 
 #define MAX_LOGF_LINES 1000
 #define MAX_LOGF_DATASIZE (16*MAX_LOGF_LINES)
@@ -27,5 +30,9 @@ extern int logfindex;
 extern bool logfwrap;
 
 void logf(const char *format, ...);
+#else
+/* built without logf() support enabled */
+#define logf(...)
+#endif
 
 #endif /* LOGF_H */
diff --git a/firmware/logf.c b/firmware/logf.c
index ac25d65690..ab3d621428 100644
--- a/firmware/logf.c
+++ b/firmware/logf.c
@@ -33,6 +33,9 @@
 #include "lcd-remote.h"
 #include "logf.h"
 
+/* Only provide all this if asked to */
+#ifdef ROCKBOX_HAS_LOGF
+
 unsigned char logfbuffer[MAX_LOGF_LINES][16];
 int logfindex;
 bool logfwrap;
@@ -96,3 +99,5 @@ void logf(const char *format, ...)
 
     displayremote();
 }
+
+#endif