treewide: revise library packaging

- Annotate versionless libraries (such as libubox, libuci etc.) with a fixed
  ABI_VERSION resembling the source date of the last incompatible change
- Annotate packages shipping versioned library objects with ABI_VERSION
- Stop shipping unversioned library symlinks for packages with ABI_VERSION

Ref: https://openwrt.org/docs/guide-developer/package-policies#shared_libraries
Ref: https://github.com/KanjiMonster/maintainer-tools/blob/master/check-abi-versions.pl
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

package/libs/elfutils/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=elfutils
 PKG_VERSION:=0.175
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=https://sourceware.org/$(PKG_NAME)/ftp/$(PKG_VERSION)
@@ -33,6 +33,7 @@ define Package/elfutils/Default
   CATEGORY:=Libraries
   TITLE:=ELF manipulation libraries
   URL:=https://fedorahosted.org/elfutils/
+  ABI_VERSION:=1
 endef
 
 define Package/libasm
@@ -79,17 +80,17 @@ endef
 
 define Package/libasm/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libasm*.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libasm*.so.* $(1)/usr/lib/
 endef
 
 define Package/libdw/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libdw*.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libdw*.so.* $(1)/usr/lib/
 endef
 
 define Package/libelf1/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libelf*.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libelf*.so.* $(1)/usr/lib/
 endef
 
 $(eval $(call BuildPackage,libasm))

package/libs/gettext-full/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gettext-full
 PKG_VERSION:=0.19.8.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=gettext-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@GNU/gettext
@@ -34,6 +34,7 @@ define Package/libintl-full
   CATEGORY:=Libraries
   TITLE:=GNU Internationalization library
   URL:=http://www.gnu.org/software/gettext/
+  ABI_VERSION:=8
 endef
 
 TARGET_CFLAGS += $(FPIC)
@@ -94,7 +95,7 @@ endef
 
 define Package/libintl-full/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libintl.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libintl.so.* $(1)/usr/lib/
 endef
 
 $(eval $(call HostBuild))

package/libs/gmp/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gmp
 PKG_VERSION:=6.1.2
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)$(PKG_REVISION).tar.xz
 PKG_SOURCE_URL:=@GNU/gmp/
@@ -30,6 +30,7 @@ define Package/libgmp
   CATEGORY:=Libraries
   TITLE:=GNU multiprecision arithmetic library
   URL:=http://gmplib.org/
+  ABI_VERSION:=10
 endef
 
 define Package/libgmp/description

package/libs/libbsd/Makefile

@@ -2,7 +2,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libbsd
 PKG_VERSION:=0.8.7
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_HASH:=f548f10e5af5a08b1e22889ce84315b1ebe41505b015c9596bad03fd13a12b31
@@ -19,6 +19,7 @@ define Package/libbsd
   SECTION:=libs
   CATEGORY:=Libraries
   TITLE:=common BSD library
+  ABI_VERSION:=0
 endef
 
 define Package/libbsd/description
@@ -36,7 +37,7 @@ endef
 
 define Package/libbsd/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libbsd.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libbsd.so.* $(1)/usr/lib/
 endef
 
 $(eval $(call BuildPackage,libbsd))

package/libs/libconfig/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libconfig
 PKG_VERSION:=1.7.2
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://hyperrealm.github.io/libconfig/dist/
@@ -28,6 +28,7 @@ define Package/libconfig
   CATEGORY:=Libraries
   TITLE:=Configuration File Library
   URL:=http://www.hyperrealm.com/libconfig/
+  ABI_VERSION:=11
 endef
 
 define Package/libconfig/description
@@ -53,7 +54,7 @@ endef
 
 define Package/libconfig/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libconfig.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libconfig.so.* $(1)/usr/lib/
 endef
 
 $(eval $(call BuildPackage,libconfig))

package/libs/libevent2/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libevent2
 PKG_VERSION:=2.1.8
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=libevent-$(PKG_VERSION)-stable.tar.gz
 PKG_SOURCE_URL:=https://github.com/libevent/libevent/releases/download/release-$(PKG_VERSION)-stable
@@ -31,6 +31,7 @@ define Package/libevent2/Default
   CATEGORY:=Libraries
   TITLE:=Event notification
   URL:=http://libevent.org
+  ABI_VERSION:=6
 endef
 
 define Package/libevent2/Default/description

package/libs/libiconv-full/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libiconv-full
 PKG_VERSION:=1.11.1
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_MAINTAINER:=Jo-Philipp Wich <jo@mein.io>
 
@@ -34,13 +34,15 @@ define Package/libiconv-full
   SECTION:=libs
   CATEGORY:=Libraries
   TITLE+= library
+  ABI_VERSION:=2
 endef
 
 define Package/libcharset
   $(call Package/libiconv-full/Default)
   SECTION:=libs
   CATEGORY:=Libraries
   TITLE+= library
+  ABI_VERSION:=1
 endef
 
 define Package/iconv
@@ -77,12 +79,12 @@ endef
 
 define Package/libcharset/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libcharset.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libcharset.so.* $(1)/usr/lib/
 endef
 
 define Package/libiconv-full/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libiconv.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libiconv.so.* $(1)/usr/lib/
 endef
 
 define Package/iconv/install

package/libs/libjson-c/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=json-c
 PKG_VERSION:=0.12.1
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-nodoc.tar.gz
 PKG_SOURCE_URL:=https://s3.amazonaws.com/json-c_releases/releases/
@@ -38,6 +38,7 @@ define Package/libjson-c
   CATEGORY:=Libraries
   TITLE:=javascript object notation
   URL:=https://json-c.github.io/json-c/
+  ABI_VERSION:=2
 endef
 
 define Package/libjson-c/description

package/libs/libmnl/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libmnl
 PKG_VERSION:=1.0.4
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:= \
@@ -30,6 +30,7 @@ define Package/libmnl
   CATEGORY:=Libraries
   TITLE:=Minimalistic user-space library for Netlink
   URL:=http://www.netfilter.org/projects/libmnl/
+  ABI_VERSION:=0
 endef
 
 define Package/libmnl/description

package/libs/libnetfilter-conntrack/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libnetfilter_conntrack
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://git.netfilter.org/libnetfilter_conntrack
@@ -31,6 +31,7 @@ define Package/libnetfilter-conntrack
   DEPENDS:=+libnfnetlink +kmod-nf-conntrack-netlink +libmnl
   TITLE:=API to the in-kernel connection tracking state table
   URL:=http://www.netfilter.org/projects/libnetfilter_conntrack/
+  ABI_VERSION:=3
 endef
 
 define Package/libnetfilter-conntrack/description

package/libs/libnetfilter-cthelper/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libnetfilter_cthelper
 PKG_VERSION:=1.0.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:= \
@@ -30,6 +30,7 @@ define Package/libnetfilter-cthelper
   DEPENDS:=+libmnl
   TITLE:=API to the in-kernel connection tracking helper infrastructure
   URL:=http://www.netfilter.org/projects/libnetfilter_cthelper/
+  ABI_VERSION:=0
 endef
 
 define Package/libnetfilter-cthelper/description

package/libs/libnetfilter-cttimeout/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libnetfilter_cttimeout
 PKG_VERSION:=1.0.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:= \
@@ -30,6 +30,7 @@ define Package/libnetfilter-cttimeout
   DEPENDS:=+libmnl
   TITLE:=API to the in-kernel connection tracking timeout infrastructure
   URL:=http://www.netfilter.org/projects/libnetfilter_cttimeout/
+  ABI_VERSION:=1
 endef
 
 define Package/libnetfilter-cttimeout/description

package/libs/libnetfilter-log/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libnetfilter_log
 PKG_VERSION:=1.0.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:= \
@@ -31,6 +31,7 @@ define Package/libnetfilter-log
   DEPENDS:=+libnfnetlink +kmod-nfnetlink-log +libmnl
   TITLE:=API to receive to-be-logged packets from the kernel nfnetlink_log subsystem
   URL:=http://www.netfilter.org/projects/libnetfilter_log/
+  ABI_VERSION:=1
 endef
 
 define Package/libnetfilter-log/description

package/libs/libnetfilter-queue/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libnetfilter_queue
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=https://git.netfilter.org/libnetfilter_queue
@@ -29,6 +29,7 @@ define Package/libnetfilter-queue
   DEPENDS:=+libmnl +libnfnetlink
   TITLE:=API to the in-kernel connection tracking queue infrastructure
   URL:=http://www.netfilter.org/projects/libnetfilter_queue/
+  ABI_VERSION:=1
 endef
 
 define Package/libnetfilter-queue/description

package/libs/libnfnetlink/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libnfnetlink
 PKG_VERSION:=1.0.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:= \
@@ -30,6 +30,7 @@ define Package/libnfnetlink
   CATEGORY:=Libraries
   TITLE:=A low-level library for netfilter related kernel/userspace communication
   URL:=http://netfilter.org/projects/libnfnetlink/
+  ABI_VERSION:=0
 endef
 
 define Package/libnfnetlink/description

package/libs/libnftnl/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libnftnl
 PKG_VERSION:=1.1.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=https://netfilter.org/projects/$(PKG_NAME)/files
@@ -31,6 +31,7 @@ define Package/libnftnl
   DEPENDS:=+libmnl
   TITLE:=Low-level netlink library for the nf_tables subsystem
   URL:=http://www.netfilter.org/projects/libnftnl
+  ABI_VERSION:=7
 endef
 
 define Package/libnftnl/description

package/libs/libnl/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libnl
 PKG_VERSION:=3.4.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/thom311/libnl/releases/download/libnl3_4_0
@@ -25,6 +25,7 @@ define Package/libnl/default
   SECTION:=libs
   CATEGORY:=Libraries
   URL:=http://www.infradead.org/~tgr/libnl/
+  ABI_VERSION:=200
 endef
 
 define Package/libnl-core
@@ -98,26 +99,22 @@ endef
 
 define Package/libnl-core/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-3.so* $(1)/usr/lib/
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-3.so $(1)/usr/lib/libnl.so
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-3.so.* $(1)/usr/lib/
 endef
 
 define Package/libnl-genl/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-genl-3.so* $(1)/usr/lib/
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-genl-3.so $(1)/usr/lib/libnl-genl.so
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-genl-3.so.* $(1)/usr/lib/
 endef
 
 define Package/libnl-route/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-route-3.so* $(1)/usr/lib/
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-route-3.so $(1)/usr/lib/libnl-route.so
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-route-3.so.* $(1)/usr/lib/
 endef
 
 define Package/libnl-nf/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-nf-3.so* $(1)/usr/lib/
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-nf-3.so $(1)/usr/lib/libnl-nf.so
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libnl-nf-3.so.* $(1)/usr/lib/
 endef
 
 define Package/libnl/install