add eternity-engine-git

TODO

@@ -0,0 +1,23 @@
+cc65
+crosstool-ng-git
+ericw-tools
+eternity-engine-git
+gc-shrink
+gdcc-git
+gitahead
+gmqcc-git
+maxcso
+minecraft-server-fabric
+motsognir
+ndstrim
+obs-linuxbrowser-bin
+otf-linjapona
+previous-svn
+qjoypad
+quakespasm-spiked-git
+trenchbroom
+uade
+xf86-input-xwiimote-git
+xwiimote-git
+zdbsp
+zennode

srcpkgs/eternity-engine-git/template

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+# Template file for 'eternity-engine-git'
+pkgname=eternity-engine-git
+version=4.01.00
+revision=1
+build_style=cmake
+hostmakedepends="git"
+makedepends="SDL2-devel SDL2_mixer-devel SDL2_net-devel libogg-devel
+             libvorbis-devel libflac-devel libmpeg2-devel libmodplug-devel"
+short_desc="An advanced Doom source port"
+maintainer="Alison Watson <marrub@greyserv.net>"
+license="GPL-3.0-or-later"
+homepage="http://eternity.youfailit.net/wiki/Main_Page"
+_git_repo="https://github.com/team-eternity/eternity/"
+
+do_fetch() {
+	git clone --depth 1 "${_git_repo}" "${wrksrc}"
+	cd "${wrksrc}"
+	git submodule init
+	git submodule update
+}