xz: add from packages feed

Add xz (liblzma) to satisfy the dependency of exec-tools package

Signed-off-by: Weijie Gao <hackpascal@gmail.com>

package/utils/xz/Makefile

@@ -0,0 +1,125 @@
+#
+# Copyright (C) 2013-2015 OpenWrt.org
+# Copyright (C) 2017 Daniel Engberg <daniel.engberg.lists@pyret.net>
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=xz
+PKG_VERSION:=5.6.2
+PKG_RELEASE:=2
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
+PKG_SOURCE_URL:=@SF/lzmautils
+PKG_HASH:=e12aa03cbd200597bd4ce11d97be2d09a6e6d39a9311ce72c91ac7deacde3171
+
+PKG_MAINTAINER:=
+PKG_LICENSE:=Public-Domain LGPL-2.1-or-later GPL-2.0-or-later GPL-3.0-or-later
+PKG_LICENSE_FILES:=COPYING
+PKG_CPE_ID:=cpe:/a:tukaani:xz
+
+PKG_BUILD_PARALLEL:=1
+PKG_INSTALL:=1
+PKG_BUILD_FLAGS:=lto
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/xz/Default
+  SUBMENU:=Compression
+  SECTION:=utils
+  CATEGORY:=Utilities
+  URL:=https://tukaani.org/xz
+endef
+
+define Package/xz-utils
+$(call Package/xz/Default)
+  TITLE:=XZ Utils (meta)
+  MENU:=1
+endef
+
+define Package/liblzma
+$(call Package/xz/Default)
+  SECTION:=libs
+  CATEGORY:=Libraries
+  DEPENDS:=+libpthread
+  TITLE:=liblzma library from XZ Utils
+endef
+
+# $(1): package name & command in /usr/bin/
+# $(2): package dependencies
+# $(3): symbolic links to $(1) in /usr/bin/
+define BuildSubPackage
+
+  define Package/$(1)
+  $(call Package/xz/Default)
+    DEPENDS:=xz-utils $(2)
+    TITLE:=$(1) utility from XZ Utils
+    $(if $(3),ALTERNATIVES:=$(foreach f,$(1) $(3),300:/usr/bin/$(f):/usr/libexec/$(1)-lzmautils))
+  endef
+
+  define Package/$(1)/description
+   Contains: $(1) $(3)
+  endef
+
+  define Package/$(1)/install
+	$(INSTALL_DIR) $$(1)$(if $(3),/usr/libexec,/usr/bin)
+	$(CP) $(PKG_INSTALL_DIR)/usr/bin/$(1) $$(1)$(if $(3),/usr/libexec/$(1)-lzmautils,/usr/bin/$(1))
+  endef
+
+  $$(eval $$(call BuildPackage,$(1)))
+endef
+
+TARGET_LDFLAGS += -Wl,--gc-sections
+
+CONFIGURE_ARGS += \
+	--enable-small \
+	--enable-assume-ram=4 \
+	--disable-assembler \
+	--disable-debug \
+	--disable-doc \
+	--disable-rpath \
+	--disable-symbol-versions \
+	--disable-werror \
+	--with-pic
+
+CONFIGURE_VARS += \
+	gl_cv_posix_shell=/bin/sh
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(1)/usr/include
+	$(CP) \
+		$(PKG_INSTALL_DIR)/usr/include/lzma{,.h} \
+		$(1)/usr/include/
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) \
+		$(PKG_INSTALL_DIR)/usr/lib/liblzma.{a,so*} \
+		$(1)/usr/lib/
+	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
+	$(CP) \
+		$(PKG_INSTALL_DIR)/usr/lib/pkgconfig/liblzma.pc \
+		$(1)/usr/lib/pkgconfig/
+endef
+
+define Package/xz-utils/install
+	true
+endef
+
+define Package/liblzma/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/liblzma.so.* $(1)/usr/lib/
+endef
+
+
+$(eval $(call BuildPackage,xz-utils))
+$(eval $(call BuildPackage,liblzma))
+$(eval $(call BuildSubPackage,lzmadec, +liblzma,))
+$(eval $(call BuildSubPackage,lzmainfo, +liblzma,))
+$(eval $(call BuildSubPackage,xz, +liblzma, lzcat lzma unlzma unxz xzcat))
+$(eval $(call BuildSubPackage,xzdec, +liblzma,))
+$(eval $(call BuildSubPackage,xzdiff, +xz, lzcmp lzdiff xzcmp))
+$(eval $(call BuildSubPackage,xzgrep, +xz, lzegrep lzfgrep lzgrep xzegrep xzfgrep))
+$(eval $(call BuildSubPackage,xzless, +xz, lzless))
+$(eval $(call BuildSubPackage,xzmore, +xz, lzmore))

package/utils/xz/patches/001-relative-pkg-config-paths.patch

@@ -0,0 +1,13 @@
+--- a/src/liblzma/liblzma.pc.in
++++ b/src/liblzma/liblzma.pc.in
+@@ -3,8 +3,8 @@
+ 
+ prefix=@prefix@
+ exec_prefix=@exec_prefix@
+-libdir=@libdir@
+-includedir=@includedir@
++libdir=${exec_prefix}/lib
++includedir=${prefix}/include
+ 
+ Name: liblzma
+ Description: General purpose data compression library

package/utils/xz/patches/010-libtool.patch

@@ -0,0 +1,36 @@
+# Fix shared library building in XZ Utils 5.2.13, 5.4.7, and 5.6.2
+#
+# The releases were made with a development version of GNU Libtool
+# (2.5.0+1+g38c166c8). The benefit is that there tend to be fixes that
+# aren't in a stable release yet. At the same time there is a higher
+# risk of new bugs. Unfortunately there was a bug that breaks building
+# of shared libraries on some systems like mips64.
+#
+# This patch was made by taking the upstream commit to m4/libtool.m4
+# and then running "autoconf" to update the generated "configure".
+# This patch only modifies "configure" so that the changed timestamps
+# won't cause the build system to regenerate more files, which would
+# only work if one has all Autotools packages installed.
+#
+# https://git.savannah.gnu.org/cgit/libtool.git/commit/?id=9a4a02615c9e7cbcfd690ed31874822a7d6aaea2
+# https://lore.kernel.org/distributions/3299713.44csPzL39Z@pinacolada/
+
+--- a/configure
++++ b/configure
+@@ -9475,7 +9475,7 @@ do
+   esac
+     for ac_exec_ext in '' $ac_executable_extensions; do
+   if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+-    ac_cv_prog_FILECMD=":"
++    ac_cv_prog_FILECMD="file"
+     printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+     break 2
+   fi
+@@ -9483,6 +9483,7 @@ done
+   done
+ IFS=$as_save_IFS
+ 
++  test -z "$ac_cv_prog_FILECMD" && ac_cv_prog_FILECMD=":"
+ fi ;;
+ esac
+ fi