emulators: add gearsystem

Gearsystem is a cross-platform Sega Master System / Game Gear / SG-1000
emulator written in C++.

## Features

- Accurate Z80 core, including undocumented opcodes and behaviour like R
  and MEMPTR registers.
- Multi-Mapper support: SEGA, Codemasters, Korean, MSX, SG-1000, and ROM
  only cartridges.
- External RAM support with save files.
- Automatic region detection: NTSC-JAP, NTSC-USA, PAL-EUR.
- Accurate VDP emulation including timing and SMS2 only 224 mode support.
- Internal database for rom detection.
- Audio emulation using SDL Audio and Sms_Snd_Emu library.
- Saves battery powered RAM cartridges to file.
- Save states.
- Compressed rom support (ZIP deflate).
- Game Genie and Pro Action Replay cheat support.
- Full debugger with disassembler, breakpoints, debug symbols, memory editor,
  IO inspector and and VRAM viewer including tiles, sprites, backgrounds and
  palettes.


(nia)

Gearsystem is a cross-platform Sega Master System / Game Gear / SG-1000
emulator written in C++.

## Features

- Accurate Z80 core, including undocumented opcodes and behaviour like R
  and MEMPTR registers.
- Multi-Mapper support: SEGA, Codemasters, Korean, MSX, SG-1000, and ROM
  only cartridges.
- External RAM support with save files.
- Automatic region detection: NTSC-JAP, NTSC-USA, PAL-EUR.
- Accurate VDP emulation including timing and SMS2 only 224 mode support.
- Internal database for rom detection.
- Audio emulation using SDL Audio and Sms_Snd_Emu library.
- Saves battery powered RAM cartridges to file.
- Save states.
- Compressed rom support (ZIP deflate).
- Game Genie and Pro Action Replay cheat support.
- Full debugger with disassembler, breakpoints, debug symbols, memory editor,
  IO inspector and and VRAM viewer including tiles, sprites, backgrounds and
  palettes.

# $NetBSD: Makefile,v 1.1 2020/06/02 13:25:00 nia Exp $

.include "Makefile.common"

MAINTAINER=	pkgsrc-users@NetBSD.org
HOMEPAGE=	https://github.com/drhelius/Gearsystem
COMMENT=	Sega Master System / Game Gear / SG-1000 emulator
LICENSE=	gnu-gpl-v3

USE_TOOLS+=	gmake

BUILD_DIRS=	platforms/linux

MAKE_FLAGS+=	CXX=${CXX}
MAKE_FLAGS+=	GIT_VERSION="pkgsrc"

.include "../../mk/bsd.prefs.mk"

.if ${OPSYS} != "Darwin"
MAKE_FLAGS+=	UNAME_S="Linux"
.else
MAKE_FLAGS+=	UNAME_S="Darwin"
.endif

# alloca
BUILDLINK_TRANSFORM+=	opt:-std=c++11:-std=gnu++11

INSTALLATION_DIRS+=	bin share/applications share/pixmaps

do-install:
	${INSTALL_PROGRAM} ${WRKSRC}/${BUILD_DIRS}/gearsystem \
		${DESTDIR}${PREFIX}/bin
	${INSTALL_DATA} ${FILESDIR}/gearsystem.desktop \
		${DESTDIR}${PREFIX}/share/applications
	${INSTALL_DATA} ${WRKSRC}/platforms/ios/Gearsystem/Images.xcassets/AppIcon.appiconset/sms_icon_120.png \
		${DESTDIR}${PREFIX}/share/pixmaps/gearsystem.png

.include "../../devel/SDL2/buildlink3.mk"
.if ${OPSYS} != "Darwin"
.  include "../../graphics/glew/buildlink3.mk"
.  include "../../graphics/MesaLib/buildlink3.mk"
.endif
.include "../../sysutils/desktop-file-utils/desktopdb.mk"
.include "../../mk/dlopen.buildlink3.mk"
BUILDLINK_TRANSFORM+=	opt:-ldl:${BUILDLINK_LDADD.dl:Q}
.include "../../mk/bsd.pkg.mk"

# $NetBSD: Makefile.common,v 1.1 2020/06/02 13:25:00 nia Exp $
# used by emulators/gearsystem/Makefile
# used by emulators/libretro-gearsystem/Makefile

DISTNAME=	gearsystem-3.1.0
CATEGORIES=	emulators
MASTER_SITES=	${MASTER_SITE_GITHUB:=drhelius/}
GITHUB_PROJECT=	Gearsystem
GITHUB_TAG=	${DISTNAME}

USE_LANGUAGES=	c c++

DISTINFO_FILE=	${.CURDIR}/../../emulators/gearsystem/distinfo
PATCHDIR=	${.CURDIR}/../../emulators/gearsystem/patches

CHECK_PORTABILITY_SKIP+=	platforms/*/dependencies/SDL-*/premake/*/build-scripts/*
CHECK_PORTABILITY_SKIP+=	platforms/ios/dependencies/SDL-*/build-scripts/*

@comment $NetBSD: PLIST,v 1.1 2020/06/02 13:25:00 nia Exp $
bin/gearsystem
share/applications/gearsystem.desktop
share/pixmaps/gearsystem.png

$NetBSD: distinfo,v 1.1 2020/06/02 13:25:00 nia Exp $

SHA1 (gearsystem-3.1.0.tar.gz) = 7f18fb9513cdde9e66d5bb7b023777797ba079f9
RMD160 (gearsystem-3.1.0.tar.gz) = 259d0bf11044e2c7adf915193b5df742c7350996
SHA512 (gearsystem-3.1.0.tar.gz) = 579c620780ce0f44aa7c6c3ec5257f6d4f3b257d8c736e472776280c7c4820b97cae6fb68836a7b78a46ee2b82ca60ae95ece751e55384e3bed9c2ec50533f11
Size (gearsystem-3.1.0.tar.gz) = 11274822 bytes
SHA1 (patch-platforms_desktop-shared_Makefile.common) = a22b4d53d1bf6e4e47cfafcc0e65747ef1fbe33d

$NetBSD: patch-platforms_desktop-shared_Makefile.common,v 1.1 2020/06/02 13:25:00 nia Exp $

Avoid overriding variables we want to pass through pkgsrc.

--- platforms/desktop-shared/Makefile.common.orig	2020-05-23 18:52:56.000000000 +0000
+++ platforms/desktop-shared/Makefile.common
@@ -27,14 +27,14 @@ OBJS = $(addsuffix .o, $(basename $(notd
 
 UNAME_S := $(shell uname -s)
 
-CXXFLAGS = -I../ -I../../
+CXXFLAGS += -I../ -I../../
 CXXFLAGS += -Wall -Wextra -Wformat -std=c++11 -DEMULATOR_BUILD=\"$(GIT_VERSION)\"
 
 DEBUG ?= 0
 ifeq ($(DEBUG), 1)
-    CXXFLAGS +=-DDEBUG -g3
+    CXXFLAGS +=-DDEBUG
 else
-    CXXFLAGS +=-DNDEBUG -O3
+    CXXFLAGS +=-DNDEBUG
 endif
 
 LIBS =
@@ -48,7 +48,7 @@ ifeq ($(UNAME_S), Linux) #LINUX
 	LIBS += -lGL -lGLEW -ldl `sdl2-config --libs`
 
 	CXXFLAGS += `sdl2-config --cflags`
-	CFLAGS = $(CXXFLAGS)
+	CFLAGS += $(CXXFLAGS)
 endif
 
 ifeq ($(UNAME_S), Darwin) #APPLE
@@ -58,7 +58,7 @@ ifeq ($(UNAME_S), Darwin) #APPLE
 
 	CXXFLAGS += `sdl2-config --cflags`
 	CXXFLAGS += -I/usr/local/include -I/opt/local/include
-	CFLAGS = $(CXXFLAGS)
+	CFLAGS += $(CXXFLAGS)
 endif
 
 ifeq ($(findstring MINGW,$(UNAME_S)),MINGW)
@@ -95,7 +95,7 @@ all: $(EXE)
 	@echo Build complete for $(ECHO_MESSAGE)
 
 $(EXE): $(OBJS)
-	$(CXX) -o $@ $^ $(CXXFLAGS) $(LIBS)
+	$(CXX) -o $@ $^ $(LDFLAGS) $(LIBS)
 
 clean:
 	rm -f $(EXE) $(OBJS)