Don't include headers already included by system.h:

Don't include errno.h.

diff --git a/src/tr.c b/src/tr.c
index 545f0df060dbfbddef1917ed46866d2142a05e86..27f6a4a4c7664df1eef548fc10ba703cf800f8db 100644 (file)
--- a/src/tr.c
+++ b/src/tr.c
@@ -21,7 +21,6 @@
 
 #include <stdio.h>
 #include <assert.h>
-#include <errno.h>
 #include <sys/types.h>
 #include <getopt.h>