[PATCH] tools/attr.c: Add missing libgen.h include for basename(3)

[Haelwenn (lanodan) Monnier]

Fixes compilation issue with musl and modern C99 compilers.

See: https://bugs.gentoo.org/926294
---
 tools/attr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/attr.c b/tools/attr.c
index f12e4af..6a3c1e9 100644
--- a/tools/attr.c
+++ b/tools/attr.c
@@ -28,6 +28,7 @@
 #include <errno.h>
 #include <string.h>
 #include <locale.h>
+#include <libgen.h>
 
 #include <attr/attributes.h>
 
-- 
2.43.2