Ports: Add nesalizer NES emulator (#722)

Ports/nesalizer/package.sh

@@ -0,0 +1,7 @@
+#!/bin/bash ../.port_include.sh
+port=nesalizer
+version=git
+curlopts="-L"
+workdir=nesalizer-master
+files="https://github.com/ulfalizer/nesalizer/archive/master.tar.gz nesalizer-master.tar.gz"
+depends=SDL2

Ports/nesalizer/patches/Makefile-fix.patch

@@ -0,0 +1,33 @@
+--- ./Makefile	2016-09-18 10:02:04.000000000 +0100
++++ ./Makefile-serenity	2019-11-04 13:43:24.842907912 +0000
+@@ -58,7 +58,7 @@
+ objects     = $(c_objects) $(cpp_objects)
+ deps        = $(addprefix $(BUILD_DIR)/,$(c_sources:=.d) $(cpp_sources:=.d))
+ 
+-LDLIBS := $(shell sdl2-config --libs) -lrt
++LDLIBS := -L../../SDL2/SDL-master-serenity -lSDL2 -lgui -lcore -ldraw
+ 
+ ifeq ($(INCLUDE_DEBUGGER),1)
+     LDLIBS += -lreadline
+@@ -105,12 +105,12 @@
+ endif
+ 
+ ifneq ($(findstring debug,$(CONF)),)
+-    compile_flags += -ggdb
++    compile_flags += -ggdb -fno-rtti
+ endif
+ ifneq ($(findstring release,$(CONF)),)
+     # Including -Ofast when linking (by including $(optimizations)) gives a
+     # different binary size. Might be worth investigating why.
+-    compile_flags += $(optimizations) -DOPTIMIZING
++    compile_flags += $(optimizations) -DOPTIMIZING -fno-rtti
+     link_flags    += $(optimizations) -fuse-linker-plugin
+ endif
+ 
+@@ -175,3 +175,6 @@
+ 
+ .PHONY: clean
+ clean: ; $(q)-rm -rf $(BUILD_DIR)
++
++install:
++	install $(BUILD_DIR)/${EXECUTABLE} ${DESTDIR}/bin/${EXECUTABLE}

Ports/nesalizer/patches/disable-backtrace.patch

@@ -0,0 +1,28 @@
+--- ./src/common.cpp	2016-09-18 10:02:04.000000000 +0100
++++ ./src/common-serenity.cpp	2019-11-02 16:58:54.509792761 +0000
+@@ -1,6 +1,6 @@
+ #include "common.h"
+ 
+-#include <execinfo.h>
++// #include <execinfo.h>
+ #include <signal.h>
+ 
+ //
+@@ -96,7 +96,7 @@
+ static void fatal_signal_handler(int sig) {
+     // Use non-async-signal-safe functions. Likely to work in practice.
+ 
+-    static void *backtrace_buffer[100];
++    /*static void *backtrace_buffer[100];
+     static char addr2line_cmd_buf[100];
+ 
+     fprintf(stderr, "caught fatal signal '%s'. Backtrace:\n\n", strsignal(sig));
+@@ -124,7 +124,7 @@
+             abort();
+         }
+ 
+-    abort();
++    abort();*/
+ }
+ 
+ static void install_fatal_signal_handler(int sig) {