games-emulation/zsnes: add more stack realignment annotations

Package-Manager: Portage-3.0.18, Repoman-3.0.3
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

games-emulation/zsnes/files/zsnes-1.51-stack-align-v4.patch

@@ -0,0 +1,45 @@
+--- a/linux/sdllink.c
++++ b/linux/sdllink.c
+@@ -1170,7 +1170,7 @@ void sem_sleep_die(void)
+   }
+ }
+ 
+-void UpdateVFrame(void)
++void __attribute__((force_align_arg_pointer)) UpdateVFrame(void)
+ {
+   //Quick fix for GUI CPU usage
+   if (GUIOn || GUIOn2 || EMUPause) { usleep(6000); }
+@@ -1237,16 +1237,16 @@ void UnloadSDL()
+   SDL_Quit();
+ }
+ 
+-int GetMouseX(void)
++int __attribute__((force_align_arg_pointer)) GetMouseX(void)
+ {
+   return ((int) MouseX);
+ }
+-int GetMouseY(void)
++int __attribute__((force_align_arg_pointer)) GetMouseY(void)
+ {
+   return ((int) MouseY);
+ }
+ 
+-int GetMouseMoveX(void)
++int __attribute__((force_align_arg_pointer)) GetMouseMoveX(void)
+ {
+   //   InputRead();
+   //SDL_GetRelativeMouseState(&MouseMove2X, NULL);
+@@ -1254,11 +1254,11 @@ int GetMouseMoveX(void)
+   return (MouseMove2X);
+ }
+ 
+-int GetMouseMoveY(void)
++int __attribute__((force_align_arg_pointer)) GetMouseMoveY(void)
+ {
+   return (MouseMove2Y);
+ }
+-int GetMouseButton(void)
++int __attribute__((force_align_arg_pointer)) GetMouseButton(void)
+ {
+   return ((int) MouseButton);
+ }

games-emulation/zsnes/zsnes-1.51-r11.ebuild

@@ -0,0 +1,129 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit autotools desktop flag-o-matic toolchain-funcs pax-utils
+
+DESCRIPTION="SNES (Super Nintendo) emulator that uses x86 assembly"
+HOMEPAGE="https://www.zsnes.com/ http://ipherswipsite.com/zsnes/"
+SRC_URI="mirror://sourceforge/zsnes/${PN}${PV//./}src.tar.bz2 -> ${P}-20071031.tar.bz2"
+S="${WORKDIR}/${PN}_${PV//./_}/src"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="-* ~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="ao custom-cflags +debug opengl png"
+
+RDEPEND="
+	media-libs/libsdl[sound,video,abi_x86_32(-)]
+	>=sys-libs/zlib-1.2.3-r1[abi_x86_32(-)]
+	ao? ( media-libs/libao[abi_x86_32(-)] )
+	debug? ( sys-libs/ncurses:0=[abi_x86_32(-)] )
+	opengl? ( virtual/opengl[abi_x86_32(-)] )
+	png? ( media-libs/libpng:0=[abi_x86_32(-)] )
+"
+DEPEND="${RDEPEND}"
+BDEPEND="
+	dev-lang/nasm
+	debug? ( virtual/pkgconfig )
+"
+
+PATCHES=(
+	# Fixing compilation without libpng installed
+	"${FILESDIR}"/${P}-libpng.patch
+
+	# Fix bug #186111
+	# Fix bug #214697
+	# Fix bug #170108
+	# Fix bug #260247
+	"${FILESDIR}"/${P}-gcc43-20071031.patch
+	"${FILESDIR}"/${P}-libao-thread.patch
+	"${FILESDIR}"/${P}-depbuild.patch
+	"${FILESDIR}"/${P}-CC-quotes.patch
+
+	# Fix compability with libpng15 wrt #378735
+	"${FILESDIR}"/${P}-libpng15.patch
+
+	# Fix buffer overwrite #257963
+	"${FILESDIR}"/${P}-buffer.patch
+	# Fix gcc47 compile #419635
+	"${FILESDIR}"/${P}-gcc47.patch
+	# Fix stack alignment issue #503138
+	"${FILESDIR}"/${P}-stack-align-v2.patch
+
+	"${FILESDIR}"/${P}-cross-compile.patch
+	"${FILESDIR}"/${P}-arch.patch
+
+	"${FILESDIR}"/${P}-gcc-10.patch
+	"${FILESDIR}"/${P}-c++17.patch
+	"${FILESDIR}"/${P}-ao-crash.patch
+	"${FILESDIR}"/${P}-stack-align-v3.patch
+	"${FILESDIR}"/${P}-stack-align-v4.patch
+)
+
+src_prepare() {
+	default
+
+	# The sdl detection logic uses AC_PROG_PATH instead of
+	# AC_PROG_TOOL, so force the var to get set the way we
+	# need for things to work correctly.
+	tc-is-cross-compiler && export ac_cv_path_SDL_CONFIG=${CHOST}-sdl-config
+
+	sed -i -e '67i#define OF(x) x' zip/zunzip.h || die
+
+	# Remove hardcoded CFLAGS and LDFLAGS
+	sed -i \
+		-e '/^CFLAGS=.*local/s:-pipe.*:-Wall -I.":' \
+		-e '/^LDFLAGS=.*local/d' \
+		-e '/\w*CFLAGS=.*fomit/s:-O3.*$STRIP::' \
+		-e '/lncurses/s:-lncurses:`pkg-config ncurses --libs`:' \
+		-e '/lcurses/s:-lcurses:`pkg-config ncurses --libs`:' \
+		configure.in || die
+	sed -i \
+		-e 's/configure.in/configure.ac/' \
+		Makefile.in || die
+	mv configure.in configure.ac || die
+	eautoreconf
+}
+
+src_configure() {
+	tc-export CC
+	export BUILD_CXX=$(tc-getBUILD_CXX)
+	export NFLAGS=-O1
+	use amd64 && multilib_toolchain_setup x86
+	use custom-cflags || strip-flags
+
+	append-cppflags -U_FORTIFY_SOURCE	#257963
+
+	econf \
+		$(use_enable ao libao) \
+		$(use_enable debug debugger) \
+		$(use_enable png libpng) \
+		$(use_enable opengl) \
+		--disable-debug \
+		--disable-cpucheck
+}
+
+src_compile() {
+	emake makefile.dep
+	emake
+}
+
+src_install() {
+	# Uses pic-unfriendly assembly code, bug #427104
+	QA_TEXTRELS="usr/bin/zsnes"
+
+	dobin zsnes
+	pax-mark m "${ED}"/usr/bin/zsnes
+
+	newman linux/zsnes.1 zsnes.6
+
+	dodoc \
+		../docs/{readme.1st,authors.txt,srcinfo.txt,stdards.txt,support.txt,thanks.txt,todo.txt,README.LINUX} \
+		../docs/readme.txt/*
+	HTML_DOCS="../docs/readme.htm/*" einstalldocs
+
+	make_desktop_entry zsnes ZSNES
+	newicon icons/48x48x32.png ${PN}.png
+}