btrfs-progs: add host package variant

This adds a new option to build the btrfs toolset for the host, which
can be useful to prepare a btrfs filesystem image for the target.

Signed-off-by: Robert J. Heywood <robert.heywood@codethink.co.uk>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/Config.in.host

@@ -2,6 +2,7 @@ menu "Host utilities"
 
 	source "package/aespipe/Config.in.host"
 	source "package/android-tools/Config.in.host"
+	source "package/btrfs-progs/Config.in.host"
 	source "package/cargo/Config.in.host"
 	source "package/cbootimage/Config.in.host"
 	source "package/checkpolicy/Config.in.host"

package/btrfs-progs/Config.in.host

@@ -0,0 +1,6 @@
+config BR2_PACKAGE_HOST_BTRFS_PROGS
+	bool "host btrfs-progs"
+	help
+	  Btrfs filesystem utilities
+
+	  https://btrfs.wiki.kernel.org/index.php/Main_Page

package/btrfs-progs/btrfs-progs.mk

@@ -21,4 +21,8 @@ BTRFS_PROGS_INSTALL_TARGET_OPTS = DESTDIR=$(TARGET_DIR) install-static
 BTRFS_PROGS_INSTALL_STAGING_OPTS = DESTDIR=$(STAGING_DIR) install-static
 endif
 
+HOST_BTRFS_PROGS_DEPENDENCIES = host-e2fsprogs host-lzo host-zlib
+HOST_BTRFS_PROGS_CONF_OPTS = --disable-backtrace --disable-zstd --disable-python
+
 $(eval $(autotools-package))
+$(eval $(host-autotools-package))