diff --git a/src/syscall/mkerrors.sh b/src/syscall/mkerrors.sh
index d25527bbf9..438de6e5d8 100755
--- a/src/syscall/mkerrors.sh
+++ b/src/syscall/mkerrors.sh
@@ -87,7 +87,9 @@ includes_FreeBSD='
 includes_Linux='
 #define _LARGEFILE_SOURCE
 #define _LARGEFILE64_SOURCE
+#ifndef __LP64__
 #define _FILE_OFFSET_BITS 64
+#endif
 #define _GNU_SOURCE
 
 #include <bits/sockaddr.h>
diff --git a/src/syscall/zerrors_linux_ppc64le.go b/src/syscall/zerrors_linux_ppc64le.go
index fdecdf24dd..17c4c4cf3a 100644
--- a/src/syscall/zerrors_linux_ppc64le.go
+++ b/src/syscall/zerrors_linux_ppc64le.go
@@ -366,9 +366,9 @@ const (
 	F_SETFD                          = 0x2
 	F_SETFL                          = 0x4
 	F_SETLEASE                       = 0x400
-	F_SETLK                          = 0xd
+	F_SETLK                          = 0x6
 	F_SETLK64                        = 0xd
-	F_SETLKW                         = 0xe
+	F_SETLKW                         = 0x7
 	F_SETLKW64                       = 0xe
 	F_SETOWN                         = 0x8
 	F_SETOWN_EX                      = 0xf
diff --git a/src/syscall/ztypes_linux_ppc64le.go b/src/syscall/ztypes_linux_ppc64le.go
index c6b6f1615d..0de1770f7f 100644
--- a/src/syscall/ztypes_linux_ppc64le.go
+++ b/src/syscall/ztypes_linux_ppc64le.go
@@ -549,7 +549,7 @@ type Sysinfo_t struct {
 	Totalhigh uint64
 	Freehigh  uint64
 	Unit      uint32
-	X_f       [0]byte
+	X_f       [0]uint8
 	Pad_cgo_1 [4]byte
 }