games-emulation/fceux: respect CC and CXX

While at it update to EAPI=7.

Package-Manager: Portage-2.3.100, Repoman-2.3.22
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

games-emulation/fceux/fceux-2.2.3-r1.ebuild

@@ -0,0 +1,57 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python2_7 )
+inherit python-any-r1 desktop scons-utils toolchain-funcs
+
+DESCRIPTION="A portable Famicom/NES emulator, an evolution of the original FCE Ultra"
+HOMEPAGE="http://fceux.com/"
+SRC_URI="mirror://sourceforge/fceultra/${P}.src.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="gtk logo +lua +opengl"
+
+RDEPEND="
+	lua? ( dev-lang/lua:0 )
+	media-libs/libsdl[opengl?,video]
+	logo? ( media-libs/gd[png] )
+	opengl? ( virtual/opengl )
+	gtk? ( x11-libs/gtk+:3 )
+	sys-libs/zlib[minizip]
+"
+DEPEND="${RDEPEND}"
+
+PATCHES=("${FILESDIR}"/${PN}-2.2.2-warnings.patch)
+
+src_prepare() {
+	default
+
+	tc-export CC CXX
+}
+
+src_compile() {
+	escons \
+		GTK=0 \
+		CREATE_AVI=1 \
+		SYSTEM_LUA=1 \
+		SYSTEM_MINIZIP=1 \
+		GTK3=$(usex gtk 1 0) \
+		LOGO=$(usex logo 1 0) \
+		OPENGL=$(usex opengl 1 0) \
+		LUA=$(usex lua 1 0)
+}
+
+src_install() {
+	dobin bin/fceux
+
+	doman documentation/fceux.6
+	docompress -x /usr/share/doc/${PF}/documentation /usr/share/doc/${PF}/fceux.chm
+	dodoc -r Authors changelog.txt TODO-SDL bin/fceux.chm documentation
+	rm -f "${D}/usr/share/doc/${PF}/documentation/fceux.6"
+	make_desktop_entry fceux FCEUX
+	doicon fceux.png
+}

games-emulation/fceux/files/fceux-2.2.2-warnings.patch

@@ -1,4 +1,3 @@
-diff -ru fceux-2.2.2.orig/src/input.cpp fceux-2.2.2/src/input.cpp
 --- fceux-2.2.2.orig/src/input.cpp	2013-06-15 15:44:11.000000000 -0400
 +++ fceux-2.2.2/src/input.cpp	2014-12-31 01:32:46.302001912 -0500
 @@ -1161,7 +1161,7 @@
@@ -10,7 +9,6 @@ diff -ru fceux-2.2.2.orig/src/input.cpp fceux-2.2.2/src/input.cpp
  		SwapSaveState();
  }
  
-diff -ru fceux-2.2.2.orig/src/state.cpp fceux-2.2.2/src/state.cpp
 --- fceux-2.2.2.orig/src/state.cpp	2013-09-18 19:03:59.000000000 -0400
 +++ fceux-2.2.2/src/state.cpp	2014-12-31 01:33:11.453155054 -0500
 @@ -1048,7 +1048,7 @@