fix compilation of Grub2 on FreeBSD.

[Karel Gardas]

>From efa44e47a7d2f3fcb66c7bbedfd2b6e06f1cf54c Mon Sep 17 00:00:00 2001
From: Karel Gardas <karel at functional.vision>
Date: Thu, 11 Nov 2021 13:40:03 +0100
Subject: [PATCH 3/3] fix compilation of grub2 on FreeBSD

---
 source-builder/config/grub2.cfg | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source-builder/config/grub2.cfg
b/source-builder/config/grub2.cfg
index c9b9c22..65aba60 100644
--- a/source-builder/config/grub2.cfg
+++ b/source-builder/config/grub2.cfg
@@ -44,7 +44,8 @@ URL: 	   https://www.gnu.org/software/grub/index.html
     --includedir=%{_includedir} --libdir=%{_libdir} \
     --mandir=%{_mandir} --infodir=%{_infodir} \
     --with-platform=%{grub2_platform} \
-    --target=%{grub2_target}
+    --target=%{grub2_target} \
+    --disable-libzfs           # broken on FreeBSD and not needed at all

   %{__make} %{?_smp_mflags} all

-- 
2.25.1