package/f2fs-tools: add host variant

Having a host variant of this package is useful to create f2fs
filesystem images.

Signed-off-by: Grzegorz Blach <grzegorz@blach.pl>
[Thomas: add explicit --without-blkid and --without-selinux options,
following the review from Yann E. Morin.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -891,6 +891,7 @@ F:	package/sofia-sip/
 
 N:	Grzegorz Blach <grzegorz@blach.pl>
 F:	package/bluez5_utils-headers/
+F:	package/f2fs-tools/
 F:	package/pigpio/
 F:	package/python-falcon/
 F:	package/python-mimeparse/

package/Config.in.host

@@ -16,6 +16,7 @@ menu "Host utilities"
 	source "package/dtc/Config.in.host"
 	source "package/e2fsprogs/Config.in.host"
 	source "package/e2tools/Config.in.host"
+	source "package/f2fs-tools/Config.in.host"
 	source "package/faketime/Config.in.host"
 	source "package/fwup/Config.in.host"
 	source "package/genext2fs/Config.in.host"

package/f2fs-tools/Config.in.host

@@ -0,0 +1,7 @@
+config BR2_PACKAGE_HOST_F2FS_TOOLS
+	bool "host f2fs-tools"
+	select BR2_PACKAGE_HOST_UTIL_LINUX
+	help
+	  Tools for Flash-Friendly File System (F2FS)
+
+	  https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git

package/f2fs-tools/f2fs-tools.mk

@@ -9,6 +9,7 @@ F2FS_TOOLS_SITE = http://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-to
 F2FS_TOOLS_SITE_METHOD = git
 F2FS_TOOLS_CONF_ENV = ac_cv_file__git=no
 F2FS_TOOLS_DEPENDENCIES = host-pkgconf util-linux
+HOST_F2FS_TOOLS_DEPENDENCIES = host-pkgconf host-util-linux
 # GIT version, shipped without configure
 F2FS_TOOLS_AUTORECONF = YES
 F2FS_TOOLS_INSTALL_STAGING = YES
@@ -29,4 +30,12 @@ else
 F2FS_TOOLS_CONF_OPTS += --without-blkid
 endif
 
+# blkid is only used to detect if we're overwriting a filesystem
+# during mkfs, which only makes sense on the target, so we disable
+# blkid support even if we have host-util-linux
+HOST_F2FS_TOOLS_CONF_OPTS = \
+	--without-selinux \
+	--without-blkid
+
 $(eval $(autotools-package))
+$(eval $(host-autotools-package))