From ad6f5f9ab52eeedca8cbdb325e78b33381bd0e2f Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Tue, 23 Oct 2018 23:11:38 +0000
Subject: [PATCH] Fix stand/ build after r339671.

ffs_subr.c requires calculate_crc32c() from libkern.  Unfortunately we
cannot just add libkern/crc32.c to libstand because crc32.o is already
compiled from contrib/zlib/crc32.c. Use the include trick to rename
the source.

Note that libstand also provides crc32.c which seems to be unused.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D17677
---
 stand/libsa/Makefile        | 4 ++--
 stand/libsa/crc32_libkern.c | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)
 create mode 100644 stand/libsa/crc32_libkern.c

diff --git a/stand/libsa/Makefile b/stand/libsa/Makefile
index 69df6be894a..d59db0fd51b 100644
--- a/stand/libsa/Makefile
+++ b/stand/libsa/Makefile
@@ -155,9 +155,9 @@ SRCS+=ffs_subr.c ffs_tables.c
 
 CFLAGS.bzipfs.c+= -I${SRCTOP}/contrib/bzip2
 
-# explicit_bzero
+# explicit_bzero and calculate_crc32c
 .PATH: ${SYSDIR}/libkern
-SRCS+=  explicit_bzero.c
+SRCS+=  explicit_bzero.c crc32_libkern.c
 
 # Maybe GELI
 .if ${MK_LOADER_GELI} == "yes"
diff --git a/stand/libsa/crc32_libkern.c b/stand/libsa/crc32_libkern.c
new file mode 100644
index 00000000000..995815294d5
--- /dev/null
+++ b/stand/libsa/crc32_libkern.c
@@ -0,0 +1,3 @@
+/* $FreeBSD$ */
+
+#include "../../sys/libkern/crc32.c"