bah.cairo and bah.freeimage bug?

BlitzMax Forums/Brucey's Modules/bah.cairo and bah.freeimage bug?

Rixarn

(Posted 2011) [#1]

Ok, i'm using the latest bmx release (1.44b) in Windows.

Just a simple header for a program:


SuperStrict
Framework bah.freeimage
Import bah.cairo

And it crashes due to a linking problem:

D:/Programming Tools/BlitzMax/mod/bah.mod/freeimage.mod/freeimage.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x32): multiple definition of `png_error'
D:/Programming Tools/BlitzMax/mod/bah.mod/freeimage.mod/freeimage.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x243): multiple definition of `png_warning'
D:/Programming Tools/BlitzMax/mod/pub.mod/libpng.mod/libpng.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0xf1): first defined here
D:/Programming Tools/BlitzMax/mod/bah.mod/freeimage.mod/freeimage.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x5fc): multiple definition of `png_chunk_error'
D:/Programming Tools/BlitzMax/mod/pub.mod/libpng.mod/libpng.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x282): first defined here
D:/Programming Tools/BlitzMax/mod/bah.mod/freeimage.mod/freeimage.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x645): multiple definition of `png_chunk_warning'
D:/Programming Tools/BlitzMax/mod/pub.mod/libpng.mod/libpng.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x2cd): first defined here
D:/Programming Tools/BlitzMax/mod/bah.mod/freeimage.mod/freeimage.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x830): multiple definition of `png_set_error_fn'
D:/Programming Tools/BlitzMax/mod/pub.mod/libpng.mod/libpng.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x343): first defined here
D:/Programming Tools/BlitzMax/mod/bah.mod/freeimage.mod/freeimage.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x859): multiple definition of `png_get_error_ptr'
D:/Programming Tools/BlitzMax/mod/pub.mod/libpng.mod/libpng.debug.win32.x86.a(pngerror.c.debug.win32.x86.o):pngerror.c:(.text+0x36c): first defined here
Build Error: Failed to link C:\Users\Rixarn\Documents\BLIde Framework\TMP\Untitled 21.debug.exe

Cairo and freeimage both share the same libraries?

Now, the funny thing here is that.. if I do the declaration like this:

SuperStrict
Framework bah.cairo
Import bah.freeimage

It wont crash! O.o ...

I can't use two Framework commands, so I have to pick one and assume that subsequent imports will only get what they have in themselves... or I'm getting something wrong here?

Thanks!

Last edited 2011

Brucey

(Posted 2011) [#2]

I've changed Cairo so that it now doesn't depend on libpng. This also has the effect of removing direct PNG load/save operations from Cairo itself.
However, you can load PNGs via BlitzMax anyway, so this shouldn't be a huge issue.

Updated in SVN. I'll do a release at some point.

Rixarn

(Posted 2011) [#3]

Hi Brucey,

Thanks for the update =)