app-emulation/spectemu: remove svgalib

Update EAPI 7 -> 8.
Remove svgalib support, `vgaspect` and its man page.
Remove X flag, force it to always enabled.
Install the `tapeout` binary.  I tested it, it works.

Closes: https://bugs.gentoo.org/962070
Signed-off-by: Viorel Munteanu <ceamac@gentoo.org>

app-emulation/spectemu/files/spectemu-0.99.3-r2-build.patch

@@ -0,0 +1,34 @@
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -44,17 +44,18 @@
+ 	./mkinstalldirs $(i_bindir) $(i_mandir)
+ 
+ install_prog: $(progs)
++	mkdir -p $(i_bindir)
+ 	if test -f xspect; then \
+-	   $(INSTALL_PROGRAM) -s -m 755 xspect $(i_bindir); fi
++	   $(INSTALL_PROGRAM) -m 755 xspect $(i_bindir); fi
+ 	if test -f vgaspect; then \
+-	   $(INSTALL_PROGRAM) -s -m 4755 vgaspect $(i_bindir); fi
++	   $(INSTALL_PROGRAM) -m 4755 vgaspect $(i_bindir); fi
+ 
+ install_man:
++	mkdir -p $(i_mandir)
+ 	$(INSTALL_DATA) ./xspect.1 $(i_mandir)
+ 	$(INSTALL_DATA) ./tapeout.1 $(i_mandir)
+-	(cd $(i_mandir); rm -f vgaspect.1; ln -s xspect.1 vgaspect.1)
+ 
+-install: installdirs install_prog install_man
++install: install_prog install_man
+ 
+ z80_c_objs=z80.o z80optab.o z80_step.o spperif.o spect.o rom48.o \
+            z80_op1.o z80_op2.o z80_op3.o z80_op4.o z80_op5.o z80_op6.o
+@@ -88,7 +90,7 @@
+ 	./sp_to_s < i386emul.sp > i386emul.s
+ 
+ i386emul.o: i386emul.s
+-	$(CC) -c $(CFLAGS) i386emul.s
++	$(CC) -c $(ASFLAGS) -Xassembler --noexecstack i386emul.s
+ 
+ sp_to_s: sp_to_s.o
+ 	$(CC) -o sp_to_s $(LDFLAGS) sp_to_s.o

app-emulation/spectemu/spectemu-0.99.3-r2.ebuild

@@ -0,0 +1,57 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools
+
+DESCRIPTION="48k ZX Spectrum Emulator"
+HOMEPAGE="http://kempelen.iit.bme.hu/~mszeredi/spectemu/spectemu.html"
+SRC_URI="http://www.inf.bme.hu/~mszeredi/spectemu/${P}.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc ~x86"
+IUSE="readline"
+
+RDEPEND="
+	x11-libs/libX11
+	x11-libs/libXext
+	x11-libs/libXxf86vm
+	readline? ( sys-libs/readline:= )
+"
+
+DEPEND="
+	${RDEPEND}
+	x11-base/xorg-proto
+"
+
+PATCHES=(
+	"${FILESDIR}"/${P}-automagic.patch
+	"${FILESDIR}"/${P}-r2-build.patch
+)
+
+src_prepare() {
+	default
+	eautoreconf
+}
+
+src_configure() {
+	local myconf=(
+		--with-svga=no
+		--with-x=yes
+		$(use_with readline)
+	)
+
+	econf "${myconf[@]}"
+}
+
+src_compile() {
+	default
+	emake tapeout
+}
+
+src_install() {
+	emake install_root="${ED}" install
+	dobin tapeout
+}