Ignore errors when writing to event_fd in a better way

GCC was failing this because write is marked warn_unused_result.
Assigning it to a attribute unused variable is apparently "better"
than casting it to void...

Also, we avoid taking this path at all if event_fd is -1.

Closes: #32
Approved by: alexlarsson

1 files changed, 2 insertions, 0 deletions

diff --git a/utils.h b/utils.h
index e4d5dff..039546f 100644
--- a/utils.h
+++ b/utils.h
@@ -37,6 +37,8 @@
 #define __debug__(x)
 #endif
 
+#define UNUSED __attribute__((__unused__))
+
 #define N_ELEMENTS(arr)		(sizeof (arr) / sizeof ((arr)[0]))
 
 #define TRUE 1