From: Chris Renshaw <osm0sis@outlook.com>
Date: Tue, 13 Sep 2016 00:24:56 -0300
Subject: [PATCH] blkdiscard; add missing linux/fs.h defines to libbb.h for ANDROID API <21

Imported from dorimanx's combined ported header toolchain:
https://github.com/dorimanx/android-busybox-ndk
---
 include/libbb.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/libbb.h b/include/libbb.h
index 657fff1..e55e575 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -65,6 +65,11 @@
 #if defined(ANDROID) || defined(__ANDROID__)
 # define endpwent() ((void)0)
 # define endgrent() ((void)0)
+# if __ANDROID_API__ < 21
+#  define BLKDISCARD _IO(0x12,119)
+#  define BLKDISCARDZEROES _IO(0x12,124)
+#  define BLKSECDISCARD _IO(0x12,125)
+# endif
 #endif
 #ifdef HAVE_MNTENT_H
 # include <mntent.h>
-- 
2.8.3