Re: [KOS] Problems compiling SDL 2 samples

[Luke B. <ka...@gm...>]

Thanks OK, I just wanted to make sure that what I was doing in the makefile
wasn't obviously wrong... I'll keep digging! Thanks!

On 10 February 2016 at 15:34, Lawrence Sebald <blu...@gm...> wrote:

> Unfortunately, I have no idea why you’d be having that particular issue
> off the top of my head. It looks like you’re compiling in the SDL_render.c
> file into your library, which is where those functions are implemented, so
> I don’t really know…
>
> The only thing I can guess is that somehow you’re picking up an old
> version of the library where you didn’t compile that in or something? Try
> rebuilding the entire library and then the program again?
>
> I really know next to nothing about SDL2, which I suppose doesn’t help
> here...
>
> On Feb 10, 2016, at 4:03 AM, Luke Benstead <ka...@gm...> wrote:
>
> Hi there!
>
> I've managed to get the SDL 2 port to a state where it compiles, but is
> untested. My SD card adapter just arrived so I figured I'd try to compile
> one of the SDL 2 sample applications to test the port.
>
> I added the following target to the KOSMakefile.mk file:
>
>
> defaultall: replacefiles $(OBJS) subdirs linklib buildsamples
>
> TESTDRAW2_SRCS = $(CURDIR)/test/testdraw2.c
> TESTDRAW2_OBJS = $(CURDIR)/test/testdraw2.o
> TESTDRAW2_TARGET = testdraw2.elf
>
> buildsamples:
>     $(KOS_CC) $(CFLAGS) -Iinclude -c $(TESTDRAW2_SRCS) -o $(TESTDRAW2_OBJS)
>     $(KOS_CC) $(KOS_CFLAGS) $(KOS_LDFLAGS) -L$(CURDIR) -Iinclude -o
> $(TESTDRAW2_TARGET) $(KOS_START) $(TESTDRAW2_OBJS) $(KOS_LIBS) -lSDL2
>
> No matter what incantation I use to build the source file, I still end up
> with undefined references to the SDL 2 functions. e.g.
>
> /home/lukeb/Dreamcast/kos-ports/SDL2/build/SDL2-2.0.4/test/testdraw2.o: In
> function `_DrawPoints':
> testdraw2.c:(.text+0x1a0): undefined reference to `_SDL_RenderGetViewport'
> testdraw2.c:(.text+0x1b8): undefined reference to `_SDL_SetRenderDrawColor'
> testdraw2.c:(.text+0x1c4): undefined reference to `_SDL_RenderDrawPoint'
>
>
> Am I missing something obvious? Grepping for those functions does find
> them in libSDL2.a which I'm linking to. I've tried changing the order of
> the GCC args, and also tried just compiling the source file directly rather
> than to an object file first.
>
> I'd appreciate any suggestions you might have!
>
> Thanks,
>
> Luke.
>
>
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