1 files changed, 15 insertions, 0 deletions

diff --git a/include/i3lock.h b/include/i3lock.h
new file mode 100644
index 0000000..6cf7694
--- /dev/null
+++ b/include/i3lock.h
@@ -0,0 +1,15 @@
+#ifndef _I3LOCK_H
+#define _I3LOCK_H
+
+/* This macro will only print debug output when started with --debug.
+ * This is important because xautolock (for example) closes stdout/stderr by
+ * default, so just printing something to stdout will lead to the data ending
+ * up on the X11 socket (!). */
+#define DEBUG(fmt, ...)                                            \
+    do {                                                           \
+        if (debug_mode) {                                          \
+            fprintf(stderr, "[i3lock-extended-debug] " fmt, ##__VA_ARGS__); \
+        }                                                          \
+    } while (0)
+
+#endif