[DVDnav-discuss] [PATCH][libdvdread] remove needless _LIBC checks from libdvdread

[Erik Auerswald]

Hi,

the first attached patch removes preprocessor checks for _LIBC, because 
libdvdread is not GNU Libc and does never #define _LIBC.

The compiled objects stay the same (checked with md5sum (without 
debugging info: ./configure2 --disable-debug)).

I have tested this patch (that is, the md5.[ch] changes) with MPlayer 
from svn as well, works the same as before.

I did not re-indent the nested #if construct in the 2nd and 3rd hunks of 
the src/md5.h changes to ease review. This should be done after applying 
this patch. You can use the second attached patch to do this (use patch 
-p1).

Applying this patch results in cleaner code, which should help in 
maintaining it. Additionally, a -Wundef warning in MPlayer (from svn) 
compilation is fixed.

This is a more comprehensive than my first proposed patch (see 
http://lists.mplayerhq.hu/pipermail/dvdnav-discuss/2013-January/001862.html) 
and replaces it.

Thanks,
Erik
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