Dear Brian, Thanks for your fast answer. I got this point from the manual and I think I've done it ok. This is my directory structure: /usr/share/gcc-4.3.1/gcc <--- contains all the .c and .h files /usr/share/gcc-4.3.1/gcc_objectdir <--- from which I entered the command 'make' So there seems to be a correct distinction between these two directories. I did make the mistake to enter the command '../gcc/make' , but since there is no Makefile in this directory, it cannot do anything wrong. But I've tried again, with this directory structure: /usr/share/gcc-4.3.1/gcc <--- contains all the .c and .h files /usr/lib/gcc/gcc_4.3.1/ <--- from which I entered 1). the command '/usr/share/gcc-4.3.1/gcc/configure' 2). the command 'make' same errors... I'm using Debian Etch, I have installed GCC 4.1 with its binary 'g++' in the directory '/usr/bin' My system is a x86 ordinary two-year old laptop, nothing special. Am I doing wrong something? Thanks a lot again... Mark ---------------------------------------- > Date: Sat, 9 Aug 2008 16:52:01 -0700 > From: brian@xxxxxxxxxxx > To: mark_zweers@xxxxxxxxxxx > CC: gcc-help@xxxxxxxxxxx > Subject: Re: [GCC] 4.3.1 installation problems > > Mark Zweers wrote: > >> build/genmodes -h> tmp-modes.h >> /bin/sh: build/genmodes: No such file or directory > > Check if applies. > > Brian _________________________________________________________________ Your PC, mobile phone, and online services work together like never before. http://clk.atdmt.com/MRT/go/108587394/direct/01/