MXE_GET_GITHUB_TAGS: new argument, stripped prefix

Makefile

@@ -139,6 +139,7 @@ endef
 define MXE_GET_GITHUB_TAGS
     $(WGET) -q -O- 'https://api.github.com/repos/$(strip $(1))/git/refs/tags/' \
     | $(SED) -n 's#.*"ref": "refs/tags/\([^"]*\).*#\1#p' \
+    | $(SED) 's,^$(strip $(2)),,g' \
     | $(SORT) -V \
     | tail -1
 endef

src/muparser.mk

@@ -11,8 +11,7 @@ $(PKG)_URL      := https://github.com/beltoforion/$(PKG)/archive/v$($(PKG)_VERSI
 $(PKG)_DEPS     := gcc
 
 define $(PKG)_UPDATE
-    $(call MXE_GET_GITHUB_TAGS, beltoforion/muparser) | \
+    $(call MXE_GET_GITHUB_TAGS, beltoforion/muparser, v)
-    $(SED) 's,^v,,g'
 endef
 
 define $(PKG)_BUILD

src/pire.mk

@@ -11,8 +11,7 @@ $(PKG)_URL      := https://github.com/yandex/pire/archive/release-$($(PKG)_VERSI
 $(PKG)_DEPS     := gcc
 
 define $(PKG)_UPDATE
-    $(call MXE_GET_GITHUB_TAGS, yandex/pire) | \
+    $(call MXE_GET_GITHUB_TAGS, yandex/pire, release-)
-    $(SED) 's,^release-,,g'
 endef
 
 define $(PKG)_BUILD