games-strategy/megaglest: migrate to EAPI-7 and lua-single.eclass

Lua migration: simple enough, needed the usual version-override patch.
Upstream build scripts only use Lua up to and including 5.2, have
confirmed that building against 5.3 fails.

EAPI migration: don't talk to me about the old version of this ebuild.
EVER.

Closes: https://bugs.gentoo.org/752717
Signed-off-by: Marek Szuba <marecki@gentoo.org>

2 files changed, 191 insertions, 0 deletions

diff --git a/games-strategy/megaglest/files/megaglest-3.11.1-cmake-lua.patch b/games-strategy/megaglest/files/megaglest-3.11.1-cmake-lua.patch
new file mode 100644
index 000000000000..c8d30e3d096f
--- /dev/null
+++ b/games-strategy/megaglest/files/megaglest-3.11.1-cmake-lua.patch
@@ -0,0 +1,25 @@
+Use the standard FindLua.cmake instead of the modified bundled FindLUA.cmake,
+and force the use of an exact Lua version.
+
+--- a/source/glest_game/CMakeLists.txt
++++ b/source/glest_game/CMakeLists.txt
+@@ -64,7 +64,7 @@
+ 		ENDIF()
+ 	ENDIF()
+ 
+-	FIND_PACKAGE(LUA REQUIRED)
++	FIND_PACKAGE(Lua ${FORCE_LUA_VERSION} EXACT REQUIRED)
+ 	INCLUDE_DIRECTORIES(${LUA_INCLUDE_DIR})
+ 	IF(UNIX)
+ 		SET(EXTERNAL_LIBS ${EXTERNAL_LIBS} ${LUA_LIBRARIES})
+--- a/source/shared_lib/CMakeLists.txt
++++ b/source/shared_lib/CMakeLists.txt
+@@ -132,7 +132,7 @@
+ 		SET(EXTERNAL_LIBS ${EXTERNAL_LIBS} ${OPENAL_LIBRARY})
+ 	ENDIF()
+ 
+-        FIND_PACKAGE(LUA REQUIRED)
++        FIND_PACKAGE(Lua ${FORCE_LUA_VERSION} EXACT REQUIRED)
+         INCLUDE_DIRECTORIES(${LUA_INCLUDE_DIR})
+         IF(UNIX)
+ 	        SET(EXTERNAL_LIBS ${EXTERNAL_LIBS} ${LUA_LIBRARIES} ${CMAKE_DL_LIBS})
diff --git a/games-strategy/megaglest/megaglest-3.11.1-r100.ebuild b/games-strategy/megaglest/megaglest-3.11.1-r100.ebuild
new file mode 100644
index 000000000000..796b7822f5ec
--- /dev/null
+++ b/games-strategy/megaglest/megaglest-3.11.1-r100.ebuild
@@ -0,0 +1,166 @@
+# Copyright 2010-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# google-breakpad
+# TODO: fribidi, libvorbis static
+
+EAPI=7
+
+# src_install() currently requires this
+CMAKE_MAKEFILE_GENERATOR="emake"
+
+LUA_COMPAT=( lua5-{1..2} )
+
+# Only needed by certain features
+VIRTUALX_REQUIRED="manual"
+
+inherit cmake desktop flag-o-matic lua-single virtualx wxwidgets xdg-utils
+
+DESCRIPTION="Cross-platform 3D realtime strategy game"
+HOMEPAGE="https://megaglest.org/ https://github.com/MegaGlest/megaglest-source"
+SRC_URI="https://github.com/MegaGlest/megaglest-source/releases/download/${PV}/megaglest-source-${PV}.tar.xz"
+
+LICENSE="GPL-3 BitstreamVera"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="debug +editor fribidi cpu_flags_x86_sse cpu_flags_x86_sse2 cpu_flags_x86_sse3 static +streflop +tools +unicode wxuniversal +model-viewer videos"
+
+REQUIRED_USE="${LUA_REQUIRED_USE}"
+
+# Older versions of megaglest-data install into /usr/games
+RDEPEND="${LUA_DEPS}
+	~games-strategy/${PN}-data-${PV}
+	>=games-strategy/${PN}-data-3.11.1-r1
+	dev-libs/libxml2
+	media-libs/fontconfig
+	media-libs/freetype
+	media-libs/libsdl[X,sound,joystick,opengl,video]
+	media-libs/libvorbis
+	media-libs/openal
+	net-libs/gnutls
+	sys-libs/zlib
+	virtual/opengl
+	virtual/glu
+	x11-libs/libX11
+	x11-libs/libXext
+	editor? ( x11-libs/wxGTK:3.0[X,opengl] )
+	fribidi? ( dev-libs/fribidi )
+	model-viewer? ( x11-libs/wxGTK:3.0[X] )
+	!static? (
+		dev-libs/xerces-c[icu]
+		media-libs/ftgl
+		media-libs/glew
+		media-libs/libpng:0
+		net-libs/libircclient
+		>=net-libs/miniupnpc-1.8
+		net-misc/curl
+		virtual/jpeg:0
+		)
+	videos? ( media-video/vlc )"
+DEPEND="${RDEPEND}
+	static? (
+		dev-libs/icu[static-libs]
+		dev-libs/xerces-c[icu,static-libs]
+		media-libs/ftgl[static-libs]
+		media-libs/glew[static-libs]
+		media-libs/libpng:0[static-libs]
+		net-libs/libircclient[static-libs]
+		net-libs/miniupnpc[static-libs]
+		net-misc/curl[static-libs]
+		virtual/jpeg:0[static-libs]
+	)"
+BDEPEND="sys-apps/help2man
+	virtual/pkgconfig
+	editor? ( ${VIRTUALX_DEPEND} )
+	model-viewer? ( ${VIRTUALX_DEPEND} )"
+
+PATCHES=(
+	"${FILESDIR}"/${P}-static-build.patch
+	"${FILESDIR}"/${P}-cmake.patch
+	"${FILESDIR}"/${P}-cmake-lua.patch
+	"${FILESDIR}"/${P}-miniupnpc.patch
+	"${FILESDIR}"/${P}-miniupnpc-api-version-16.patch
+)
+
+src_prepare() {
+	cmake_src_prepare
+
+	if use editor || use model-viewer ; then
+		WX_GTK_VER="3.0"
+		setup-wxwidgets
+	fi
+}
+
+src_configure() {
+	if use cpu_flags_x86_sse3; then
+		SSE=3
+	elif use cpu_flags_x86_sse2; then
+		SSE=2
+	elif use cpu_flags_x86_sse; then
+		SSE=1
+	else
+		SSE=0
+	fi
+
+	local mycmakeargs=(
+		-DBUILD_MEGAGLEST_MAP_EDITOR=$(usex editor)
+		-DBUILD_MEGAGLEST_MODEL_IMPORT_EXPORT_TOOLS=$(usex tools)
+		-DBUILD_MEGAGLEST_MODEL_VIEWER=$(usex model-viewer)
+		-DENABLE_FRIBIDI=$(usex fribidi)
+		-DFORCE_LUA_VERSION="$(lua_get_version)"
+		-DMAX_SSE_LEVEL_DESIRED="${SSE}"
+		-DUSE_FTGL=ON
+		-DWANT_STATIC_LIBS=$(usex static)
+		-DWANT_STREFLOP=$(usex streflop)
+		-DWITH_VLC=$(usex videos)
+		-DwxWidgets_USE_STATIC=$(usex static)
+		-DwxWidgets_USE_UNICODE=$(usex unicode)
+		-DwxWidgets_USE_UNIVERSAL=$(usex wxuniversal)
+
+		$(usex debug "-DBUILD_MEGAGLEST_UPNP_DEBUG=ON -DwxWidgets_USE_DEBUG=ON" "")
+	)
+
+	cmake_src_configure
+}
+
+src_compile() {
+	if use editor || use model-viewer; then
+		# work around parallel make issues - bug #561380
+		MAKEOPTS="-j1 ${MAKEOPTS}" \
+			virtx cmake_src_compile
+	else
+		cmake_src_compile
+	fi
+}
+
+src_install() {
+	# rebuilds some targets randomly without fast option
+	emake -C "${BUILD_DIR}" DESTDIR="${D}" "$@" install/fast
+
+	dodoc docs/{AUTHORS.source_code,CHANGELOG,README}.txt
+	doicon -s 48 ${PN}.png
+
+	use editor &&
+		make_desktop_entry ${PN}_editor "MegaGlest Map Editor"
+	use model-viewer &&
+		make_desktop_entry ${PN}_g3dviewer "MegaGlest Model Viewer"
+}
+
+pkg_postinst() {
+	einfo
+	elog 'Note about Configuration:'
+	elog 'DO NOT directly edit glest.ini and glestkeys.ini but rather glestuser.ini'
+	elog 'and glestuserkeys.ini in ~/.megaglest/ and create your user over-ride'
+	elog 'values in these files.'
+	elog
+	elog 'If you have an older graphics card which only supports OpenGL 1.2, and the'
+	elog 'game crashes when you try to play, try starting with "megaglest --disable-vbo"'
+	elog 'Some graphics cards may require setting Max Lights to 1.'
+	einfo
+
+	xdg_icon_cache_update
+}
+
+pkg_postrm() {
+	xdg_icon_cache_update
+}