Re: [Lcms-user] Problems getting 1.08 to run on Redhat 7.2

[Jim M. <jm...@ro...>]

Ok... I've got it all resolved.

The first problem is caused by a bug in "tifficc" that I covered in 
another note.

My second problem was caused by trying to use a TIFF file.  The QImage 
class doesn't support TIFF, and somehow that burbled up as having a 
"null" image.  Using a PNM file works fine.  I didn't see any mention 
of that in the documentation, so perhaps a note to that effect would be 
in order.

Thanks for putting this package together.

-- Jim


On 2001.12.04 23:21 Jim Mayer wrote:
> Hi,
> 
> I just discovered LittleCMS and am having problems getting it to run 
> on Redhat 7.2 Linux.  I looked through the "lcms-user" archives and 
> didn't find anyone reporting similar problems, so I thought I'd 
> describe what was going on before I dove into debugging mode.
> 
> I had no problems getting lcms-1.08 and lprof-1.08 to build.  I do, 
> however, see the following problems:
> 
> (1) tifficc generally gets a segmentation fault.  When I poked around 
> with gdb, I discovered that the fault is in the final call to 
> "TIFFClose(out)" in "tifficc.c" file.  The actual fault is triggered 
> int the malloc/free code.  The generated TIFF file is fine despite 
> the error.
> 
> (2) When I run "qtmeasurementtool" and attempt to load a scanned 
> target, I get an error message claiming that the TIFF file I'm 
> loading a "null image".  Specifically, I get:
> 
> 
> 	QImage::smoothScale: Image is a null image
> 	QPixmap::convertFromImage: Cannot convert a null image
> 	QPixmap::convertFromImage: Cannot convert a null image
> 
> The image I'm attempting to load was generated using "xsane".  It 
> displays fine with both the GIMP and ImageMagick.  I've done a "save 
> as" from the GIMP with the same result.
> 
> At this point I'm rather suspicious that I've got problem or 
> incompatibility with my TIFF library, and was wondering if other 
> folks have seen similar problems.  Here are the versions of things 
> I'm running:
> 
> lcms-1.08
> lprof-1.08
> TIFF: Redhat RPM libtiff-devel-3.5.5-13, libtiff-3.5.5-13
> Qt: Redhat RPM qt-2.3.1-5
> GCC: Redhat RPM gcc-2.96-98
> 
> I run the GNOME desktop, and use Sawfish as my window manager, though 
> I don't see that that should be terribly relevant to the problems I'm 
> seeing.
> 
> All the RPMs are off the Redhat 7.2 distribution.  The lcms and lprof 
> files I downloaded from the http://littlecms.com web site.
> 
> Thanks.
> 
> -- Jim Mayer
> 
> 
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