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umask 0;g++ -Wall -g -D_DEBUG -c GImage.cpp -o ../../obj/GClasses/dbg/GImage.o
GImage.cpp: In function ‘void GClasses::LoadPng(GClasses::GImage, const
unsigned char, size_t)’:
GImage.cpp:1301:108: error: cannot convert ‘long unsigned int’ to
‘png_uint_32’ for argument ‘3’ to ‘png_uint_32 png_get_IHDR(png_struct,
png_info, png_uint_32, png_uint_32, int, int, int, int, int*)’
I guess because sizeof(long unsigned int) is 8 bytes, the compiler doesn't
want to convert the pointer to png_uint_32* (which is presumably 4 byte).
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Thanks for pointing this out. It does not seem to repro on my 64-bit Ubuntu
machine. What flavor of Linux are you using? What version of g++? The error
message seems to indicate that the correct fix is to change line 1301 of
unsigned long width, height;
png_uint_32 width, height;
On my machine, this change seems to make no difference, but I'm pretty sure it
is the correct fix, so I will make this change and include it in the next
Thanks for the fix! Sorry, I forgot to mention this is gcc 4.5. OpenSUSE now
ships with 4.5, though I think most other distros are still on 4.4.
There may be other similar problems -- I will download and test your fix and
Did you push to subversion? I still get the same error.
Oh sorry, I pushed the change now. (BTW, if you would like commit access, just
send me a user name via email. My address is on the main web page.)