You're missing the 32 bit libc dev package:
On CentOS 5.8, the package name is glibc-devel.i386 (Thanks to JimKleck's comment)
On CentOS 6 / 7, the package name is glibc-devel.i686.
Quelle: http://stackoverflow.com/questions/...le-or-directory-while-compiling-nachos-source
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Auch für dich, bei dir scheint die Lib zu Fehlen für 32 bit.