ghostscript @9.05_0 missing characters in loaded fonts

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Since upgrading ghostscript to @9.05_0 certain characters in postscript and pdf files are not displayed. Reverting to @9.04_1 fixes the problem.

This is on a system running 10.6.8. Potentially relevant ports installed are: freetype @2.4.9_1+universal fontconfig @2.9.0_1+universal

The problem occurs on the attached pdf file (and on other files). The text in the left margin is missing several characters. I've attached two screenshots: the behaviour in 0.94_1.png is the correct behaviour displayed by ghostscript @9.04_1, while the behaviour shown in 0.95_0.png is what ghostscript @9.05_0 displays. Other pdf viewers agree with the output of @9.04_1.

The console output of @9.05_0 on this file is:

GPL Ghostscript 9.05 (2012-02-08)
Copyright (C) 2010 Artifex Software, Inc.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Processing pages 1 through 20.
Page 1
Loading NimbusRomNo9L-Regu font from /opt/local/share/ghostscript/9.05/Resource/Font/NimbusRomNo9L-Regu... 3438920 2049811 6310512 5008808 3 done.
>>showpage, press <return> to continue<<

Whereas in @9.04_1 the output is:

GPL Ghostscript 9.04 (2011-08-05)
Copyright (C) 2011 Artifex Software, Inc.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Processing pages 1 through 20.
Page 1
Loading NimbusRomNo9L-Regu font from /opt/local/share/ghostscript/9.04/Resource/Font/NimbusRomNo9L-Regu... 3559648 2160956 6127704 4819707 3 done.
>>showpage, press <return> to continue<<

The only differences are in the numbers displayed regarding the loaded font. It seems like the font is either corrupt or being loaded incorrectly.

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pdf file that is not correctly displayed

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incorrect behaviour (@9.05_0)

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correct behaviour (@9.04_1)