APK compatible

Makefile

@@ -1,25 +1,28 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=einat-ebpf
-PKG_VERSION:=0.1.4
+PKG_UPSTREAM_VERSION:=0.1.4
+PKG_UPSTREAM_GIT7VER:=
+PKG_VERSION:=$(PKG_UPSTREAM_VERSION)$(if $(PKG_UPSTREAM_GIT7VER),~$(call version_abbrev,$(PKG_UPSTREAM_GIT7VER)))
 PKG_RELEASE:=5
 
-ifneq ($(shell echo $(PKG_RELEASE) | grep -E '^[0-9]+$$'),)
-PKG_SOURCE_URL:=https://codeload.github.com/EHfive/einat-ebpf/tar.gz/refs/tags/v$(PKG_VERSION)?
+ifeq ($(PKG_UPSTREAM_GIT7VER),)
+PKG_SOURCE_URL:=https://codeload.github.com/EHfive/einat-ebpf/tar.gz/refs/tags/v$(PKG_UPSTREAM_VERSION)?
 PKG_HASH:=7e95e8f232869c124772bf3b6f2ecc5763a68406378ea4729631f57716d7e5ac
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_UPSTREAM_VERSION).tar.gz
 else
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/EHfive/einat-ebpf.git
-PKG_SOURCE_VERSION:=0e4fe711e7be1228066902e2a4c438e8e1b52192
+PKG_SOURCE_VERSION:=$(PKG_UPSTREAM_GIT7VER)
 PKG_MIRROR_HASH:=05ccebb3fb2dde30c7fc35953ee86efa6796745bda18cbc85534c2a268992443
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_SOURCE_VERSION).tar.gz
-PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_SOURCE_SUBDIR)
 endif
 
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_UPSTREAM_VERSION)
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_SOURCE_SUBDIR)
+
 PKG_MAINTAINER:=Anya Lin <hukk1996@gmail.com>
 PKG_LICENSE:=GPL-2.0-or-later GPL-2.0-only
 PKG_LICENSE_FILES:=LICENSE