[Interest] [Qt-interest] Fwd: Application crashes on Mac OS X when loading a pixmap

[Bo Thorsen]

Hi all,

I don't know if this is the same problem on Mac as I hit a few weeks ago 
on Linux at a customer. I also saw some completely weird crashes in png 
loading that I have never seen before. I finally traced this, but it 
took a while.

If you have any variable called crc32, you might cause a crash because 
png also has a symbol with this name in the library. On some, not all, 
of the Linux boxes the linker chose to link the global crc32 from the 
customer code to the function pointer in png, so when the png libary 
uses the function pointer, it crashes.

If you do have a crc32 symbol in your code, try renaming it.

Bo Thorsen,
Fionia Software.

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