[xmonad] Issue 551 in xmonad: XMonad.Prompt.Man.manPrompt uses `manpath -g`, -g appears to be an invalid option

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Comment #2 on issue 551 by ondrej.g... at gmail.com:  
XMonad.Prompt.Man.manPrompt uses `manpath -g`, -g appears to be an invalid  
option
http://code.google.com/p/xmonad/issues/detail?id=551

That would explain it.

Gentoo (CentOS too AFAIK) still uses the standard man, but migration to  
man-db is in progress (Gentoo bug  
https://bugs.gentoo.org/show_bug.cgi?id=284822).

I think the only proper solution is to parse the version as printed out by
`manpath -V` (this option seems to be in both versions, although the  
standard manpath does not advertize it).

Output from standard man `manpath -V` on current Gentoo 64
manpath, version 1.6g     # <- note the comma
         # <- yes, that's one extra blank line ...

Output from man-db `manpath -V` on Debian 6
manpath 2.5.7

I've attached a working example of such parsing and a patch that should fix  
the problem. I'm a beginner in Haskell, but it could be of some use perhaps.


Attachments:
	manpath_parse.hs  364 bytes
	Xmonad_Prompt_Man.hs.diff  1.4 KB

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