fceux: update to 2.3.0.

This switches the GUI from GTK3 to Qt.
GTK3 is still available, but did not work fully in my testing.
Qt is the default and recommended GUI, and it worked.

By ericonr:
- fix build for musl

Closes: #27646 [via git-merge-pr]

srcpkgs/fceux/patches/isascii-musl.patch

@@ -0,0 +1,13 @@
+diff --git src/drivers/Qt/HexEditor.cpp src/drivers/Qt/HexEditor.cpp
+index 8f078ac..010b2cf 100644
+--- src/drivers/Qt/HexEditor.cpp
++++ src/drivers/Qt/HexEditor.cpp
+@@ -43,6 +43,8 @@
+ #include "Qt/ConsoleUtilities.h"
+ #include "Qt/ConsoleWindow.h"
+
++#undef isascii
++
+ static bool memNeedsCheck = false;
+ static HexBookMarkManager_t hbm;
+ static std::list <HexEditorDialog_t*> winList;

srcpkgs/fceux/template

@@ -1,26 +1,14 @@
 # Template file for 'fceux'
 pkgname=fceux
-version=2.2.3
-revision=4
-build_style=scons
-make_build_args="SYSTEM_LUA=1 RELEASE=1 GTK=0 GTK3=1"
-hostmakedepends="pkg-config"
-makedepends="zlib-devel lua51-devel SDL-devel gtk+3-devel gd-devel glu-devel"
+version=2.3.0
+revision=1
+wrksrc="fceux-fceux-$version"
+build_style=cmake
+hostmakedepends="pkg-config qt5-qmake qt5-host-tools"
+makedepends="zlib-devel lua51-devel SDL2-devel qt5-devel minizip-devel"
 short_desc="All in one NES/Famicom Emulator"
 maintainer="bra1nwave <brainwave@openmailbox.org>"
 license="GPL-2.0-or-later"
-homepage="http://www.fceux.com/"
-distfiles="${SOURCEFORGE_SITE}/fceultra/Source%20Code/${version}%20src/${pkgname}-${version}.src.tar.gz"
-checksum=4be6dda9a347f941809a3c4a90d21815b502384adfdd596adaa7b2daf088823e
-
-export PKG_CONFIG_LIBDIR="$XBPS_CROSS_BASE/usr/lib/pkgconfig"
-export PKG_CONFIG_PATH="$PKG_CONFIG_LIBDIR:$XBPS_CROSS_BASE/usr/share/pkgconfig"
-
-pre_build() {
-	CPPFLAGS+=" $($PKG_CONFIG --cflags lua)"
-}
-
-do_install() {
-	CPPFLAGS+=" $($PKG_CONFIG --cflags lua)"
-	scons --prefix=${DESTDIR}/usr $make_build_args install
-}
+homepage="https://fceux.com/web/home.html"
+distfiles="https://github.com/TASVideos/fceux/archive/fceux-${version}.tar.gz"
+checksum=0d3b02b3f15032f7675acb95423fd81fae286615313dfbc58cdd4de2bce17f6e