Changes to wxWidgets/SDL2 port :

- Updated UI
- OpenGL 3.0 with GLSL/GLSLP-support
- Improvements to Windows version
- Minor changes/bugfixes
Patch from bit.

src/Makefile.linux64-wx-sdl2

@@ -2,7 +2,8 @@ VPATH = . dosbox resid-fp
 CPP  = g++
 CC   = gcc
 WXRC = wxrc
-CFLAGS = -Doff64_t=__off64_t -O3 -fomit-frame-pointer -msse2 -m64 $(shell wx-config --cxxflags) $(shell sdl2-config --cflags)
+CFLAGS = -O3 -fomit-frame-pointer -msse2 -m64 $(shell wx-config --cxxflags) $(shell sdl2-config --cflags)
+CXXFLAGS = $(CFLAGS)
 OBJ = 386.o 386_dynarec.o 386_dynarec_ops.o 808x.o acer386sx.o ali1429.o amstrad.o cdrom-ioctl-linux.o cdrom-image.o cdrom-null.o \
 codegen.o codegen_ops.o codegen_timing_486.o codegen_timing_686.o codegen_timing_common.o codegen_timing_pentium.o codegen_timing_winchip.o codegen_x86-64.c compaq.o config.o cpu.o \
 dac.o dells200.o device.o disc.o disc_fdi.o disc_img.o disc_sector.o dma.o esdi_at.o fdc.o fdc37c665.o fdd.o fdi2raw.o gameport.o \
@@ -21,12 +22,12 @@ vid_stg_ramdac.o vid_svga.o vid_svga_render.o vid_tandy.o vid_tandysl.o vid_tgui
 vid_tkd8001_ramdac.o vid_tvga.o vid_unk_ramdac.o vid_vga.o vid_voodoo.o vid_wy700.o video.o wd76c10.o \
 x86seg.o x87.o xtide.o sound_dbopl.o sound_resid.o \
 wx-main.o wx-config_sel.o wx-dialogbox.o wx-utils.o wx-app.o wx-sdl2-joystick.o wx-sdl2-mouse.o wx-sdl2-keyboard.o wx-sdl2-video.o wx-sdl2-midi.o \
-wx-sdl2.o wx-config.o wx-deviceconfig.o wx-sdl2-hdconf.o wx-status.o wx-sdl2-status.o wx-resources.o wx-thread.o wx-common.o wx-sdl2-display.o
+wx-sdl2.o wx-config.o wx-deviceconfig.o wx-status.o wx-sdl2-status.o wx-resources.o wx-thread.o wx-common.o wx-sdl2-display.o \
+wx-sdl2-video-renderer.o wx-sdl2-video-gl3.o wx-glslp-parser.o wx-shader_man.o wx-shaderconfig.o
 DBOBJ = cdrom_image.o dbopl.o nukedopl.o vid_cga_comp.o
 SIDOBJ = convolve.o convolve-sse.o envelope.o extfilt.o filter.o pot.o sid.o voice.o wave6581__ST.o wave6581_P_T.o wave6581_PS_.o wave6581_PST.o wave8580__ST.o wave8580_P_T.o wave8580_PS_.o wave8580_PST.o wave.o
 
-
-LIBS = -lopenal -lstdc++ -lpthread -lm $(shell wx-config --libs) $(shell sdl2-config --libs)
+LIBS = -lopenal -lstdc++ -lpthread -lm $(shell wx-config --libs) $(shell sdl2-config --libs) -lGL
 
 PCem64-wx-SDL2: $(OBJ) $(DBOBJ) $(SIDOBJ)
 	$(CC) $(OBJ) $(DBOBJ) $(SIDOBJ) -o "PCem64-wx-SDL2" $(LIBS)
@@ -45,7 +46,7 @@ wx-resources.o : pc.xrc
 	$(CC) $(CFLAGS) -c $<
 
 %.o : %.cc
-	$(CPP) $(CFLAGS) -c $<
+	$(CPP) $(CXXFLAGS) -c $<
 
 %.o : %.cpp
-	$(CPP) $(CFLAGS) -c $<
+	$(CPP) $(CXXFLAGS) -c $<