Attempting to Cross-compile SDL_image with mingw on a linux host

Eupator · 02-02-2010, 05:09 PM

Hi all,

I've written a few applications with SDL, and recently I've taken interest in porting them to win32 via mingw, hosted on my Slackware laptop.

I downloaded and installed mingw to my home directory, and I also downloaded the mingw32 SDL development pacakge ("SDL-devel-1.2.14-mingw32.tar.gz") from the SDL website. After installing it with proper prefixes, I can compile SDL programs with mingw and run them on a Windows box.

However, I'm having less luck with programs that use both SDL and SDL_image. There's no mingw32 development package on the SDL_image site as there is on the SDL site, so I'm a bit confused on how to proceed.

Should I download the source package and compile it with mingw? If so, how? The typical ./configure, make, make install uses gcc, not i686-pc-mingw-gcc, and attempting to specify it causes the configure script to complain that the compiler doesn't create valid binaries.

I've tried compiling with gcc and setting the prefixes to my mingw installation; I'm getting no luck with that, and I suspect it's the wrong road to take.

I would greatly appreciate any hints.

Thanks,
Eupator

smeezekitty · 02-02-2010, 06:21 PM

Download the visual C SDL image dev-kit.

Eupator · 02-03-2010, 07:12 AM

Quote:

Originally Posted by smeezekitty

Download the visual C SDL image dev-kit.

Could you elaborate? I downloaded SDL_image-devel-1.2.10-VC.zip from http://www.libsdl.org/projects/SDL_image/ . I tried compiling it with gcc and installing to my mingw directory, but cross compiling still fails:

Code:

$ /home/me/mingw32/usr/bin/i686-pc-mingw32-gcc -o SDL_test.exe main.c `/home/me/mingw32/bin/sdl-config --cflags --libs` -lSDL_image
/tmp/cc8ukDpN.o:main.c:(.text+0x1a): undefined reference to `_IMG_Load'
collect2: ld returned 1 exit status

main.c contains only:

Code:

#include<stdio.h>
#include"SDL/SDL.h"
#include"SDL/SDL_image.h"

int main(int argc,char *argv[])
{
        SDL_Surface *s;
        printf("Hello, world!\n");
        s=IMG_Load("test.png");
        return;
}

Any ideas?

smeezekitty · 02-03-2010, 12:57 PM

http://jcatki.no-ip.org:8080/SDL_ima...age.html#SEC13

Eupator · 02-03-2010, 03:47 PM

Quote:

Originally Posted by smeezekitty

http://jcatki.no-ip.org:8080/SDL_ima...age.html#SEC13

This returns the same error during linkage, with the name of one function replaced with another.

Code:

/tmp/ccMdPNbq.o:main.c:(.text+0x3a): undefined reference to `_IMG_LoadTyped_RW'
collect2: ld returned 1 exit status

Any other ideas?

smeezekitty · 02-03-2010, 04:33 PM

Add the flag -lSDLimage (or was it -lSDLImage) to the compiler / linker command line.

Eupator · 02-03-2010, 05:03 PM

Quote:

Originally Posted by smeezekitty

Add the flag -lSDLimage (or was it -lSDLImage) to the compiler / linker command line.

I've been linking with -lSDL_image. Neither of the above libraries exist.