gptfdisk: Add host package

This tool which is useful for scripts that create flash images with
multiple partitions.  The host-parted package can do this too, but is
missing a number of features that the gptfdisk program has for dealing
with GPT.

The interactive gdisk and curses based sgdisk aren't built.  Just the
scriptable tool sgdisk.  The target package allows configuring which
tools are built, but this seem unnecessarily complex for the host
tool.

[Thomas: minor reformatting tweaks.]

Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/Config.in.host

@@ -12,6 +12,7 @@ menu "Host utilities"
 	source "package/genext2fs/Config.in.host"
 	source "package/genimage/Config.in.host"
 	source "package/genpart/Config.in.host"
+	source "package/gptfdisk/Config.in.host"
 	source "package/imx-usb-loader/Config.in.host"
 	source "package/jq/Config.in.host"
 	source "package/lpc3250loader/Config.in.host"

package/gptfdisk/Config.in.host

@@ -0,0 +1,11 @@
+config BR2_PACKAGE_HOST_GPTFDISK
+	bool "host gptfdisk"
+	select BR2_PACKAGE_HOST_UTIL_LINUX
+	help
+          GPT fdisk (consisting of the gdisk and sgdisk programs) is a
+          text-mode partitioning tool that works on Globally Unique
+          Identifier (GUID) Partition Table (GPT) disks, rather than
+          on the more common (through 2010) Master Boot Record (MBR)
+          partition tables.
+
+          http://www.rodsbooks.com/gdisk/

package/gptfdisk/gptfdisk.mk

@@ -46,4 +46,15 @@ define GPTFDISK_INSTALL_TARGET_CMDS
 	done
 endef
 
+HOST_GPTFDISK_DEPENDENCIES = host-util-linux host-popt
+
+define HOST_GPTFDISK_BUILD_CMDS
+	$(HOST_MAKE_ENV) $(MAKE) $(HOST_CONFIGURE_OPTS) -C $(@D) sgdisk
+endef
+
+define HOST_GPTFDISK_INSTALL_CMDS
+	$(INSTALL) -D -m 0755 $(@D)/sgdisk $(HOST_DIR)/usr/sbin/sgdisk
+endef
+
 $(eval $(generic-package))
+$(eval $(host-generic-package))