[racket] Racket 5.1: "bitmap scheme-box.jpg failed to load" error

From: Matthew Flatt (mflatt at cs.utah.edu)
Date: Tue Feb 15 22:37:59 EST 2011

At Tue, 15 Feb 2011 22:33:06 -0430, Karn Kallio wrote:
> I came across the same thing ... it must be libjpeg 6.2 (you can see this in 
> the file collects/racket/draw/unsafe/jpeg.rkt

In the call

  (ffi-lib "libjpeg" '("62" ""))

'("62" "") requests version 6.2, but it settles for a versionless
library (which is typically linked to some specific version). The hack
at the definition of JPEG_LIB_VERSION determines which version was
actually loaded.

So, installing version 6.2 may avoid the problem, but I'm interested to
understand why version 8.3 didn't work out.



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