package/upx: new package

UPX is a free, portable, extendable, high-performance executable
packer for several executable formats.

This is needed for syslinux 6.x.

Note: upx is a host-only package. Although it supports quite a few
target architectures, the only use so far will be for use by syslinux,
which already has an x86-on-x86 requirement anyway. So we currently do
not care to have target-dependencies on host-upx.

Signed-off-by: Frank Hunleth <fhunleth@troodon-software.com>
[yann.morin.1998@free.fr: builds fine in parallel; fix build to
 locate libucl; fix installation; don't add a menuconfig entry]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/upx/upx.mk

@@ -0,0 +1,28 @@
+################################################################################
+#
+# upx
+#
+################################################################################
+
+UPX_VERSION = 3.91
+UPX_SITE = http://upx.sourceforge.net/download/
+UPX_SOURCE = upx-$(UPX_VERSION)-src.tar.bz2
+UPX_LICENSE = GPLv2+
+UPX_LICENSE_FILES = COPYING
+
+HOST_UPX_DEPENDENCIES = host-ucl
+
+# We need to specify all, otherwise the default target only prints a message
+# stating to "please choose a target for 'make'"... :-(
+define HOST_UPX_BUILD_CMDS
+	$(HOST_MAKE_ENV) $(MAKE) CPPFLAGS="$(HOST_CPPFLAGS)" \
+	    LDFLAGS="$(HOST_LDFLAGS)" UPX_UCLDIR=$(HOST_DIR)/usr \
+	    -C $(@D) all
+endef
+
+# UPX has no install procedure, so install it manually.
+define HOST_UPX_INSTALL_CMDS
+	$(INSTALL) -D -m 0755 $(@D)/src/upx.out $(HOST_DIR)/usr/bin/upx
+endef
+
+$(eval $(host-generic-package))