From: "Mark E." <snowball3 AT bigfoot DOT com>
To: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>, djgpp-workers AT delorie DOT com
Date: Tue, 16 May 2000 09:24:59 -0400
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Subject: Re: Fw: DJGPP config changes part 2 of 2
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> Could you please explain why does GCC need to know about the /dev/env
> magic?  After all, the library will do that for it when /dev/env is
> used in a file name, no?
> 

GCC sets the various paths it needs based on the prefix you use when 
configure. But configuring with $DJDIR requires modifying the configure 
script as Andris has already noted. This patch makes it possible to use 
'/dev/env/DJDIR/' as the prefix which requires no modifications. The patch 
translates '/dev/env/DJDIR/' to canonical form because there is a routine in 
gcc that compares paths and generates a relative path. Comparing a path like 
'c:/foo/bar' to '/dev/env/DJDIR' is obviously not a good idea. Then the other 
paths generated because of the comparison (that are seen with 'gcc -print-
search-dirs') will be out of whack. That same kind of translation is already 
done in gcc 2.95.2 and earlier with '$DJDIR', so it's really just replacing 
one kind of translation with another kind.