libssh2: Remove old artifacts from autotools platform

Removed PKG_FIXUP. It has no meaning with CMake.

Replaced PKG_INSTALL with CMAKE_INSTALL. Consequentially, removed
InstallDev section.

Added ABI_VERSION to force package rebuilds when it increases.

Added PKG_BUILD_PARALLEL for faster compilation.

Fixed license tag.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/libssh2/Makefile

@@ -15,14 +15,14 @@ PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://www.libssh2.org/download
 PKG_HASH:=d5fb8bd563305fd1074dda90bd053fb2d29fc4bce048d182f96eaa466dfadafd
 
-PKG_FIXUP:=autoreconf
-
-PKG_INSTALL:=1
-
-PKG_LICENSE:=BSD
+PKG_MAINTAINER:=Jiri Slachta <jiri@slachta.eu>
+PKG_LICENSE:=BSD-3-Clause
 PKG_LICENSE_FILES:=COPYING
 PKG_CPE_ID:=cpe:/a:libssh2:libssh2
 
+CMAKE_INSTALL:=1
+PKG_BUILD_PARALLEL:=1
+
 PKG_CONFIG_DEPENDS:= \
 	CONFIG_LIBSSH2_MBEDTLS \
 	CONFIG_LIBSSH2_OPENSSL
@@ -36,7 +36,7 @@ define Package/libssh2
   TITLE:=SSH2 library
   URL:=https://www.libssh2.org/
   DEPENDS:=+LIBSSH2_MBEDTLS:libmbedtls +LIBSSH2_OPENSSL:libopenssl +zlib
-  MAINTAINER:=Jiri Slachta <jiri@slachta.eu>
+  ABI_VERSION:=1
 endef
 
 define Package/libssh2/description
@@ -59,18 +59,9 @@ else
 	CMAKE_OPTIONS += -DCRYPTO_BACKEND=mbedTLS
 endif
 
-define Build/InstallDev
-	$(INSTALL_DIR) $(1)/usr/include
-	$(INSTALL_DIR) $(1)/usr/lib
-	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
-	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/*.h $(1)/usr/include/
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libssh2.so* $(1)/usr/lib/
-	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libssh2.pc $(1)/usr/lib/pkgconfig/
-endef
-
 define Package/libssh2/install
 	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libssh2.so* $(1)/usr/lib/
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libssh2.so.$(ABI_VERSION)* $(1)/usr/lib/
 endef
 
 $(eval $(call BuildPackage,libssh2))