compile glibc without most features

[Philippe Troin]

Sascha Ziemann <szi@aibon.ping.de> writes:

> Wolfram Gloger <Wolfram.Gloger@dent.med.uni-muenchen.de> writes:
> 
> | Debian, for example, has done it quite easily.  In a gzip-compressed
> | boot image, glibc-2.1.3.so (the standard build) doesn't take more than
> | 370k or so.
> 
> This is my one:
> 
> -rwxr-xr-x   1 szi      ego       1176701 Apr 28 11:36 libc-2.1.3.so*
> 
> Please tell me the trick to create a 370k file.

Debian uses a trick where first, all programs on the boot disk are
linked statically, then the modules (.o) that are actually used (as
reported by ld -map) are put into a shared library.

Hence libc.so is still shared amongst executables and does not contain
any superfluous code.

Phil.