Hi, I wrote the instructions in the WIN32 file.
This looks like the same problem that I originally had with the SDL
package, mangling of "main" function in C land by the hand of the C
SDL.h include file.
If you look at the .hsc files from the SDL package, you will see the
fix I applied at the top of each file, after #including SDL.h the evil
"main" macro is undefined:
#include "SDL.h"
#ifdef main
#undef main
#endif
Probably the same must be done for all the .hsc files in SDL-image(and
probably also all other haskell SDL addon packages).
Please let me know if this information is helpful.
2008/8/27 Garrick Chin
Hello,
I'm trying to build the latest SDL-image package (0.5.2) from Hackage on Windows and encountering problems. These are the steps I've taken so far:
1. Downloaded SDL 1.2.13 developmental library for Mingw32 to E:\SDL-1.2.13, and SDL_image 1.2.6 developmental library for VC8 to E:\SDL_image-1.2.6. 2. Installed SDL package from Hackage, modifying the SDL.cabal according to the included WIN32 readme file and then runghc Setup.lhs configure/build/install 3. Downloaded the SDL-image package from Hackage, modified the SDL-image.cabal file to add the line "Include-Dirs: E:\SDL_image-1.2.6\include\SDL, E:\SDL-1.2.13\include\SDL" so Cabal can find the header files. After doing "runghc Setup.lhs configure", "runghc Setup.lhs build -v" gives me the following output:
Creating dist\build (and its parents) Creating dist\build\autogen (and its parents) Preprocessing library SDL-image-0.5.2... Creating dist\build\Graphics\UI\SDL\Image (and its parents) E:\ghc\ghc-6.8.2\bin\hsc2hs.exe --cc=E:\ghc\ghc-6.8.2\bin\ghc.exe --ld=E:\ghc\ghc-6.8.2\bin\ghc.exe --cflag=-package --cflag=SDL-0.5.4 --cflag=-package --cflag=base-3.0.1.0 --cflag=-IE:\SDL_image-1.2.6\include\SDL --cflag=-IE:\SDL-1.2.13\include\SDL -o dist\build\Graphics\UI\SDL\Image\Version.hs Graphics\UI\SDL\Image\Version.hsc E:/ghc/ghc-6.8.2/libHSrts.a(Main.o)(.text+0x7):Main.c: undefined reference to `__stginit_ZCMain' E:/ghc/ghc-6.8.2/libHSrts.a(Main.o)(.text+0x36):Main.c: undefined reference to `ZCMain_main_closure' collect2: ld returned 1 exit status linking dist\build\Graphics\UI\SDL\Image\Version_hsc_make.o failed command was: E:\ghc\ghc-6.8.2\bin\ghc.exe dist\build\Graphics\UI\SDL\Image\Version_hsc_make.o -o dist\build\Graphics\UI\SDL\Image\Version_hsc_make.exe
The results of a limited google search suggests that the __stginit_ZCMain linker error has to do with GHC expecting a main function, but I'm not really sure how that works in context of a library.
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