From 788d3a1926b47a26db7b2db4be40e42acbadd009 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= <thomas@t-8ch.de>
Date: Sat, 11 Apr 2026 19:39:09 +0200
Subject: [PATCH] pidutils: gracefully handle systems without sys/vfs.h /
 statfs()
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Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
---
 lib/pidfd-utils.c | 6 ++++++
 1 file changed, 6 insertions(+)

--- a/lib/pidfd-utils.c
+++ b/lib/pidfd-utils.c
@@ -6,7 +6,9 @@
  */
 #include <stdlib.h>
 #include <sys/stat.h>
+#ifdef HAVE_SYS_VFS_H
 #include <sys/vfs.h>
+#endif
 #include <sys/types.h>
 #include <errno.h>
 #include <err.h>
@@ -22,6 +24,7 @@
  */
 int pfd_is_pidfs(int pidfd)
 {
+#ifdef HAVE_SYS_VFS_H
 	struct statfs stfs;
 	int rc;
 
@@ -30,6 +33,9 @@ int pfd_is_pidfs(int pidfd)
 		return 0;
 
 	return F_TYPE_EQUAL(stfs.f_type, STATFS_PIDFS_MAGIC);
+#else
+	return 1;
+#endif
 }
 
 #ifdef USE_PIDFD_INO_SUPPORT