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SDL 2.0 for AROS

Last updated on 13 minutes ago
M
magoriumSoftware Dev
Posted 4 years ago
Just to make sure we are on the same page: You are using the source-code that is found at the github link you posted earlier ?

I'm puzzled about the real suffix..... Unless i overlooked i did not see one of the macro's expand to add such suffix.

Note that creating a dynamic version of the library is something else then creating a static one.

Trying to compile as the library as linux library isn't the way to go there. You are better of trying to see what is inside the amigaos4 makefile and try to replicate that (minus the ppc specific parts ofc).

I wish i had more time on my hands so i could give it a shot myself. Cavemann/deadwood (or anyone else with a bit of c/make knowledge) not around ?
M
MiDWaNNewbie
Posted 4 years ago
Was there any more progress on this matter?

I would like to see if I can improve Janus-UAE on AROS, and one of the things would be moving it to SDL2 - but that requires the library first, of course Smile
amigamiaamigamiaAdmin
Posted 4 years ago

MiDWaN wrote:

@MiDWaN - Was there any more progress on this matter?

I would like to see if I can improve Janus-UAE on AROS, and one of the things would be moving it to SDL2 - but that requires the library first, of course Smile


Hello MiDWaN, welcome to AROSWorld!

I haven't made much progress unfortunately. It's on pause right now as I had to redo my virtual machines hosting AROS on them. However, I plan on picking it up again but I am no expert. I am doing it it as a learning experience as well as because no one else seems interested on porting SDL 2 to AROS.

I thought I would give it a shot. I was in contact with one of the AOS4 developers who suggested to use the MorphOS code because it's closer to AROS. I have the code here on this web site but I am going to put it on GitHub soon.

Would you be interested in collaborating?
M
MiDWaNNewbie
Posted 4 years ago

amigamia wrote:

@amigamia -

MiDWaN wrote:

@MiDWaN - Was there any more progress on this matter?

I would like to see if I can improve Janus-UAE on AROS, and one of the things would be moving it to SDL2 - but that requires the library first, of course Smile


Hello MiDWaN, welcome to AROSWorld!

I haven't made much progress unfortunately. It's on pause right now as I had to redo my virtual machines hosting AROS on them. However, I plan on picking it up again but I am no expert. I am doing it it as a learning experience as well as because no one else seems interested on porting SDL 2 to AROS.

I thought I would give it a shot. I was in contact with one of the AOS4 developers who suggested to use the MorphOS code because it's closer to AROS. I have the code here on this web site but I am going to put it on GitHub soon.

Would you be interested in collaborating?


Hi there!
No problem, I'd love to collaborate on this - I would probably have to look into it myself otherwise.

I just managed to get everything to compile (using SDL1) yesterday, after a lot of trial and error. The sources of Janus-UAE were a little stale for a few years, and things had changed in the meantime.
That means that the "fun" part is only starting, as the first requirement (and the pain in the butt) was making sure I have an environment that I can use to test new builds in (AROS itself, and a fool-proof way of building Janus-UAE). Well, now I have more than one (Ubuntu under Windows 11 with WSL2, Manjaro Linux) and I know more about the pitfalls of the process. Smile

In other words, no rush and no expectations from my side. Happy to help wherever I can!
My work on Janus-UAE is on Github, since I've made some modifications already (with plenty more expected to follow): https://github.co.../janus-uae
amigamiaamigamiaAdmin
Posted 4 years ago
That's fantastic work and thank you for all that! I agree with you, it was time to bring Janus-UAE up to date. I believe if we can manage to port SDL 2.0 to AROS, it is going to open a gate to a lot of new applications, games, etc. etc. but one thing that I noticed is the OS is still somewhat very unstable.

I recently managed to get AROS One 1.8 by Amigasystem on AROS-EXEC working (Supported Video, Wifi, and Audio) on a Dell Latitude D520. I struggled with the Wifi card but figured out what was the problem (will post an article in here soon). I am still experiencing occasional lock-ups, unexpected crashes, and annoyances such as a shell icon on the desktop showing multiple times after placing just one via "leave out" option.

It's frustrating and distracting when I am trying to focus on one particular problem/task and other things around go crashing.

In any case, it is still fun in trying to port a piece of software for the first time on a new OS like AROS Smile
amigamiaamigamiaAdmin
Posted 12 months ago
@MiDWaN There is finally a brave one who has ventured into the SDL 2 porting for AROS and is succeding...

https://arosworld.org/infusions/forum/viewthread.php?thread_id=1443&pid=8854#post_8854
M
MazzeAROS Dev
Posted 11 months ago
Kalamatee released a new video.
https://www.youtu...VFV3PeQDVA
SDL2 uses the software rasterizer. That's why it looks slow ATM.
retrofaza, Argo, mmartinka
amigamiaamigamiaAdmin
Posted 3 days ago
Trying to compile a game on AROS I get this error on the linking portion. Are these not yet available on SDL 2.0 AROS?

There are undefined symbols in 'bin/SpaceCadetPinball':
_ZNSt11this_thread11__sleep_forENSt6chrono8durationIlSt5ratioILx1ELx1EEEENS1_IlS2_ILx1ELx1000000000EEEE
SDL_FreeWAV
SDL_iconv_string
SDL_strtokr
SDL_LoadWAV_RW
make: *** [bin/SpaceCadetPinball] Error 1o8


Makefile attached and below is the linking part of it:

mkdir -p bin
g++ SpaceCadetPinball/control.o SpaceCadetPinball/EmbeddedData.o SpaceCadetPinball/font_selection.o SpaceCadetPinball/fullscrn.o SpaceCadetPinball/gdrv.o SpaceCadetPinball/GroupData.o SpaceCadetPinball/high_score.o SpaceCadetPinball/loader.o SpaceCadetPinball/maths.o SpaceCadetPinball/midi.o SpaceCadetPinball/nudge.o SpaceCadetPinball/options.o SpaceCadetPinball/partman.o SpaceCadetPinball/pb.o SpaceCadetPinball/proj.o SpaceCadetPinball/render.o SpaceCadetPinball/score.o SpaceCadetPinball/Sound.o SpaceCadetPinball/SpaceCadetPinball.o SpaceCadetPinball/TBall.o SpaceCadetPinball/TBlocker.o SpaceCadetPinball/TBumper.o SpaceCadetPinball/TCircle.o SpaceCadetPinball/TCollisionComponent.o SpaceCadetPinball/TComponentGroup.o SpaceCadetPinball/TDemo.o SpaceCadetPinball/TDrain.o SpaceCadetPinball/TEdgeManager.o SpaceCadetPinball/TEdgeSegment.o SpaceCadetPinball/TFlagSpinner.o SpaceCadetPinball/TFlipper.o SpaceCadetPinball/TFlipperEdge.o SpaceCadetPinball/TGate.o SpaceCadetPinball/THole.o SpaceCadetPinball/timer.o Space








 CadetPinball/TKickback.o SpaceCadetPinball/TKickout.o SpaceCadetPinball/TLight.o SpaceCadetPinball/TLightBargraph.o SpaceCadetPinball/TLightGroup.o SpaceCadetPinball/TLightRollover.o SpaceCadetPinball/TLine.o SpaceCadetPinball/TOneway.o SpaceCadetPinball/TPinballComponent.o SpaceCadetPinball/TPinballTable.o SpaceCadetPinball/TPlunger.o SpaceCadetPinball/TPopupTarget.o SpaceCadetPinball/TRamp.o SpaceCadetPinball/translations.o SpaceCadetPinball/TRollover.o SpaceCadetPinball/TSink.o SpaceCadetPinball/TSoloTarget.o SpaceCadetPinball/TSound.o SpaceCadetPinball/TTableLayer.o SpaceCadetPinball/TTextBox.o SpaceCadetPinball/TTextBoxMessage.o SpaceCadetPinball/TTimer.o SpaceCadetPinball/TTripwire.o SpaceCadetPinball/TWall.o SpaceCadetPinball/winmain.o SpaceCadetPinball/zdrv.o SpaceCadetPinball/imgui.o SpaceCadetPinball/imgui_sdl.o SpaceCadetPinball/imgui_draw.o SpaceCadetPinball/imgui_widgets.o SpaceCadetPinball/imgui_tables.o SpaceCadetPinball/imgui_demo.o SpaceCadetPinball/imgui_impl_sdl.o SpaceCadetPinball/imgui_im








 pl_sdlrenderer.o SpaceCadetPinball/DebugOverlay.o -o bin/SpaceCadetPinball -L/Development/lib -lSDL2 -lSDL2_mixer -liconv -lcharset -lgl -lgraphics -lintuition -lexpansion -lutility -lopenurl -lm -lstdc++ -lpthread





# AROS toolchain
CXX = g++
CC = gcc

# SDL2-config integration
SDL2_CFLAGS := $(shell sdl2-config --cflags)
SDL2_LIBS := $(shell sdl2-config --libs)

# Compiler flags
CXXFLAGS = -std=c++11 -Wall -O2
 $(SDL2_CFLAGS)

# Linker flags (SDL2-config + AROS system libs)
LDFLAGS =
 $(SDL2_LIBS)
 -lSDL2_mixer
 -liconv
 -lcharset
 -lgl
 -lgraphics
 -lintuition
 -lexpansion
 -lutility
 -lopenurl
 -lm

# Output directory
BIN_DIR = bin
TARGET = $(BIN_DIR)/SpaceCadetPinball

# Source files
SRC =
 SpaceCadetPinball/control.cpp
 SpaceCadetPinball/EmbeddedData.cpp
 SpaceCadetPinball/font_selection.cpp
 SpaceCadetPinball/fullscrn.cpp
 SpaceCadetPinball/gdrv.cpp
 SpaceCadetPinball/GroupData.cpp
 SpaceCadetPinball/high_score.cpp
 SpaceCadetPinball/loader.cpp
 SpaceCadetPinball/maths.cpp
 SpaceCadetPinball/midi.cpp
 SpaceCadetPinball/nudge.cpp
 SpaceCadetPinball/options.cpp
 SpaceCadetPinball/partman.cpp
 SpaceCadetPinball/pb.cpp
 SpaceCadetPinball/proj.cpp
 SpaceCadetPinball/render.cpp
 SpaceCadetPinball/score.cpp
 SpaceCadetPinball/Sound.cpp
 SpaceCadetPinball/SpaceCadetPinball.cpp
 SpaceCadetPinball/TBall.cpp
 SpaceCadetPinball/TBlocker.cpp
 SpaceCadetPinball/TBumper.cpp
 SpaceCadetPinball/TCircle.cpp
 SpaceCadetPinball/TCollisionComponent.cpp
 SpaceCadetPinball/TComponentGroup.cpp
 SpaceCadetPinball/TDemo.cpp
 SpaceCadetPinball/TDrain.cpp
 SpaceCadetPinball/TEdgeManager.cpp
 SpaceCadetPinball/TEdgeSegment.cpp
 SpaceCadetPinball/TFlagSpinner.cpp
 SpaceCadetPinball/TFlipper.cpp
 SpaceCadetPinball/TFlipperEdge.cpp
 SpaceCadetPinball/TGate.cpp
 SpaceCadetPinball/THole.cpp
 SpaceCadetPinball/timer.cpp
 SpaceCadetPinball/TKickback.cpp
 SpaceCadetPinball/TKickout.cpp
 SpaceCadetPinball/TLight.cpp
 SpaceCadetPinball/TLightBargraph.cpp
 SpaceCadetPinball/TLightGroup.cpp
 SpaceCadetPinball/TLightRollover.cpp
 SpaceCadetPinball/TLine.cpp
 SpaceCadetPinball/TOneway.cpp
 SpaceCadetPinball/TPinballComponent.cpp
 SpaceCadetPinball/TPinballTable.cpp
 SpaceCadetPinball/TPlunger.cpp
 SpaceCadetPinball/TPopupTarget.cpp
 SpaceCadetPinball/TRamp.cpp
 SpaceCadetPinball/translations.cpp
 SpaceCadetPinball/TRollover.cpp
 SpaceCadetPinball/TSink.cpp
 SpaceCadetPinball/TSoloTarget.cpp
 SpaceCadetPinball/TSound.cpp
 SpaceCadetPinball/TTableLayer.cpp
 SpaceCadetPinball/TTextBox.cpp
 SpaceCadetPinball/TTextBoxMessage.cpp
 SpaceCadetPinball/TTimer.cpp
 SpaceCadetPinball/TTripwire.cpp
 SpaceCadetPinball/TWall.cpp
 SpaceCadetPinball/winmain.cpp
 SpaceCadetPinball/zdrv.cpp
 SpaceCadetPinball/imgui.cpp
 SpaceCadetPinball/imgui_sdl.cpp
 SpaceCadetPinball/imgui_draw.cpp
 SpaceCadetPinball/imgui_widgets.cpp
 SpaceCadetPinball/imgui_tables.cpp
 SpaceCadetPinball/imgui_demo.cpp
 SpaceCadetPinball/imgui_impl_sdl.cpp
 SpaceCadetPinball/imgui_impl_sdlrenderer.cpp
 SpaceCadetPinball/DebugOverlay.cpp

OBJ = $(SRC:.cpp=.o)

all: $(TARGET)

$(TARGET): $(OBJ)
   mkdir -p $(BIN_DIR)
   $(CXX) $(OBJ) -o $(TARGET) $(LDFLAGS) -lstdc++ -lpthread

%.o: %.cpp
   $(CXX) $(CXXFLAGS) -c $< -o $@

clean:
   rm -f $(OBJ) $(TARGET)

.PHONY: all clean

Edited by amigamia on 22-07-2026 19:51, 3 days ago
S
sonountalebanJunior Member
Posted 2 days ago
Hello,
Yes, SDL2 is available, the "AI" is telling me you could try to launch the compiler using these params, maybe it works:


g++ SpaceCadetPinball/control.o SpaceCadetPinball/EmbeddedData.o SpaceCadetPinball/font_selection.o SpaceCadetPinball/fullscrn.o SpaceCadetPinball/gdrv.o SpaceCadetPinball/GroupData.o SpaceCadetPinball/high_score.o SpaceCadetPinball/loader.o SpaceCadetPinball/maths.o SpaceCadetPinball/midi.o SpaceCadetPinball/nudge.o SpaceCadetPinball/options.o SpaceCadetPinball/partman.o SpaceCadetPinball/pb.o SpaceCadetPinball/proj.o SpaceCadetPinball/render.o SpaceCadetPinball/score.o SpaceCadetPinball/Sound.o SpaceCadetPinball/SpaceCadetPinball.o SpaceCadetPinball/TBall.o SpaceCadetPinball/TBlocker.o SpaceCadetPinball/TBumper.o SpaceCadetPinball/TCircle.o SpaceCadetPinball/TCollisionComponent.o SpaceCadetPinball/TComponentGroup.o SpaceCadetPinball/TDemo.o SpaceCadetPinball/TDrain.o SpaceCadetPinball/TEdgeManager.o SpaceCadetPinball/TEdgeSegment.o SpaceCadetPinball/TFlagSpinner.o SpaceCadetPinball/TFlipper.o SpaceCadetPinball/TFlipperEdge.o SpaceCadetPinball/TGate.o SpaceCadetPinball/THole.o SpaceCadetPinball/timer.o SpaceCadetPinball/TKickback.o SpaceCadetPinball/TKickout.o SpaceCadetPinball/TLight.o SpaceCadetPinball/TLightBargraph.o SpaceCadetPinball/TLightGroup.o SpaceCadetPinball/TLightRollover.o SpaceCadetPinball/TLine.o SpaceCadetPinball/TOneway.o SpaceCadetPinball/TPinballComponent.o SpaceCadetPinball/TPinballTable.o SpaceCadetPinball/TPlunger.o SpaceCadetPinball/TPopupTarget.o SpaceCadetPinball/TRamp.o SpaceCadetPinball/translations.o SpaceCadetPinball/TRollover.o SpaceCadetPinball/TSink.o SpaceCadetPinball/TSoloTarget.o SpaceCadetPinball/TSound.o SpaceCadetPinball/TTableLayer.o SpaceCadetPinball/TTextBox.o SpaceCadetPinball/TTextBoxMessage.o SpaceCadetPinball/TTimer.o SpaceCadetPinball/TTripwire.o SpaceCadetPinball/TWall.o SpaceCadetPinball/winmain.o SpaceCadetPinball/zdrv.o SpaceCadetPinball/imgui.o SpaceCadetPinball/imgui_sdl.o SpaceCadetPinball/imgui_draw.o SpaceCadetPinball/imgui_widgets.o SpaceCadetPinball/imgui_tables.o SpaceCadetPinball/imgui_demo.o SpaceCadetPinball/imgui_impl_sdl.o SpaceCadetPinball/imgui_impl_sdlrenderer.o SpaceCadetPinball/DebugOverlay.o -o bin/SpaceCadetPinball -pthread -L/Development/lib -lSDL2_mixer -lSDL2 -lgl -lgraphics -lintuition -lexpansion -lutility -lopenurl -liconv -lcharset -lm -lpthread -lauto
D
deadwoodAROS Dev
Posted 2 days ago
Try adding -lSDL2 at the end of LDFLAGS (after -lm)
amigamiaamigamiaAdmin
Posted 1 day ago

deadwood wrote:

@deadwood - Try adding -lSDL2 at the end of LDFLAGS (after -lm)


With that change, it shows more missing references in the output
D
deadwoodAROS Dev
Posted 1 day ago
Hmm, that's weird. Did you add -lSDL2 at the end or did you move $(SDL_LIBS) to the end?

In general the issue you are having is because of order of "-l" elements in LDFLAGS and cross dependencies between them. Sometimes you can only solve those cross dependencies by adding same libraries several times into LDFLAGS at different positions (libraries are resolved in order you provided)
amigamiaamigamiaAdmin
Posted 18 hours ago
Well yes I moved $(SDL_LIBS) at the end after the -lm switch but I'll try without moving that and putting a whole new line for -lSDL2 after -lm
amigamiaamigamiaAdmin
Posted 17 hours ago

amigamia wrote:

@amigamia - Well yes I moved $(SDL_LIBS) at the end after the -lm switch but I'll try without moving that and putting a whole new line for -lSDL2 after -lm


OK That seemed to have worked but it throws these as missing:

libiconv
libiconv_open
libiconv_close
amigamiaamigamiaAdmin
Posted 17 hours ago
moved -liconv at the end and it took care of the last 3 missing symbols but still errors. This time states missing references but does not seem to list any. Only this:

There are undefined symbols in 'bin/SpaceCadetPinball':
_ZNSt11this_thread11__sleep_forENSt6chrono8durationIlSt5ratioILx1ELx1EEEENS1_IlS2_ILx1ELx1000000000EEEE
make: *** [bin/SpaceCadetPinball] Error 1µ
P


Is there a specific order of precedence for these libraries?
T
terminillsMember
Posted 16 hours ago

amigamia wrote:

@amigamia - moved -liconv at the end and it took care of the last 3 missing symbols but still errors. This time states missing references but does not seem to list any. Only this:

There are undefined symbols in 'bin/SpaceCadetPinball':
_ZNSt11this_thread11__sleep_forENSt6chrono8durationIlSt5ratioILx1ELx1EEEENS1_IlS2_ILx1ELx1000000000EEEE
make: *** [bin/SpaceCadetPinball] Error 1µ
P


Is there a specific order of precedence for these libraries?


Yes... Per kalamatee.


# Linker flags (SDL2-config + AROS system libs)
LDFLAGS =
-lSDL2_mixer
$(SDL2_LIBS)
-liconv
-lcharset
-lgl
-lopenurl
-lgraphics
-lintuition
-lexpansion
-lutility
-lm
D
deadwoodAROS Dev
Posted 14 hours ago
This last missing symbol looks like a C++ reference - it seems to be something from stdc++, but you are alrady adding -lstdc++ at the very end so this should be resolved. The only idea I have it to have a clean rebuild of all source but with -std=c++11 removed from CXXFLAGS
amigamiaamigamiaAdmin
Posted 6 hours ago
No such luck. I did remove the stdc++ from the CXXFLAGS but same error. A quick search seems to point to threads. I did have -lpthreads in the linking section but not in the CXXFLAGS. Is there a switch for threads or pthreads for CXX ?
D
deadwoodAROS Dev
Posted 13 minutes ago
Well the thing is that you should not need to add anything to CXXFLAGS for pthreads - it should alrady be same (same you should not need to add -lstdc++ -lpthread to LDFLAGS because g++ bring in those libraries automatically. What happens when you remove -lstdc++ -lpthread)?
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Users who participated in discussion: cavemann, amigamia, magorium, terminills, deadwood, MiDWaN, Mazze, sonountaleban