(usagi-users 00028) Re: using glibc-usagi simply and safely

[Hideaki YOSHIFUJI (吉藤英明) <yoshfuji@xxxxxxxxxxxxxxxxx>]

In article <m3ofzoi2hw.fsf@xxxxxxxxxxxxxxxxxxxxx> (at 10 Nov 2000 10:46:03 +0100), "Alexandru Petrescu" <petrescu@xxxxxxx> says:

> Installing a new libc has always been a sensitive issue and I wish I

Yes, this is a big problem.

Currently we include new features in glibc with new symbol
GLIBC_2_1_3_USAGI (and GLIBC_2_2_USAGI for glibc-2.2).
Glibc people dislikes these symbols and they will remove *_USAGI 
symbols when we contribute new functions into glibc and you will 
encounter some problems.

One possible senario to avoid this is that we provide patch for 
include files and new inet6 library for new advanced features. 
When a feature stabilized,  we can contribute it to original 
glibc (hopefully) without problems.  

Drawbacks:  1. We must specify options such as -L/usr/local/lib 
-linet6 to use our advanced features.  2. Include files can 
be different between distributions, and upgrading USAGI environment 
can be more complicated.

IMHO, this is not opinion of Project,
 1. we provide advanced features by separate (static/dynamic) library,
    not by libc, and
 2. we provide patch for include files for such features in form of patch 
    against glibc
should be ok.

Comments?


> BTW, Hideaki, how do you use your glibc-usagi ?

Well, I use patched (debian) package provided by us.
Test is done by compiling glibc with usagi-patch and 
setting LD_PRELOAD.

-- 
Hideaki YOSHIFUJI @ USAGI Project  <yoshfuji@xxxxxxxxxxxxxx>
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