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May 2009
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2009.05.17 08:51 "Re: Potential problem in libtiff when compiled in MinGW", by Ari Jolma
Bob Friesenhahn kirjoitti: > On Sat, 16 May 2009, Ari Jolma wrote: > >> As I've explained in a GDAL bug report >> http://trac.osgeo.org/gdal/ticket/2649, it is not enough to use WIN32 >> and _MSC_VER to determine whether to use %I64 instead of %ll as MinGW >> uses msvcrt.dll but does not define _MSC_VER. This is an issue in >> several places in libtiff sources (tif_dumpmode.c, tif_luv.c, tif_lzw.c, >> tif_print.c, tif_read.c, tif_strip.c, and tif_thunder.c). > > Have you verified that this is an actual problem? My experience with > MinGW builds is that 'long long' works, including in printf type > specifications. I am not sure how MinGW accomplishes that but MinGW > does provide a thin library which could do transformations if required. I have not, I'll try to put together a test. In the GDAL case there was a verifiable problem, whose investigation led me to infer that this is generally a problem, but admittably this may be a bit different. I'll be back later. Ari > > Bob > -- > Bob Friesenhahn > bfriesen@simple.dallas.tx.us, > http://www.simplesystems.org/users/bfriesen/ > GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ -- Prof. Ari Jolma Environmental Management Information Technology Teknillinen Korkeakoulu / Helsinki University of Technology tel: +358 9 4511 address: POBox 5300, 02015 TKK, Finland Email: ari.jolma at tkk.fi URL: http://geoinformatics.tkk.fi