From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12074 invoked by alias); 6 Aug 2014 10:11:04 -0000 Mailing-List: contact gcc-help-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-help-owner@gcc.gnu.org Received: (qmail 12059 invoked by uid 89); 6 Aug 2014 10:11:03 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.1 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-ig0-f181.google.com Received: from mail-ig0-f181.google.com (HELO mail-ig0-f181.google.com) (209.85.213.181) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Wed, 06 Aug 2014 10:11:02 +0000 Received: by mail-ig0-f181.google.com with SMTP id h3so2586263igd.8 for ; Wed, 06 Aug 2014 03:11:00 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.43.104.132 with SMTP id dm4mr13700610icc.56.1407319860316; Wed, 06 Aug 2014 03:11:00 -0700 (PDT) Received: by 10.64.29.194 with HTTP; Wed, 6 Aug 2014 03:11:00 -0700 (PDT) In-Reply-To: References: <53E0A4B6.1090007@gmail.com> Date: Wed, 06 Aug 2014 10:11:00 -0000 Message-ID: Subject: Re: How to uninstall pre-installed previous version and install new From: Syed Ahsan Ali Bokhari To: Jonathan Wakely Cc: =?UTF-8?B?w4FuZ2VsIEdvbnrDoWxleg==?= , gcc-help Content-Type: text/plain; charset=UTF-8 X-IsSubscribed: yes X-SW-Source: 2014-08/txt/msg00040.txt.bz2 I have set following paths in .bashrc to correspond to the latest installation of gcc export PATH=$PATH:/opt/gcc-4.9.1/bin export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/gcc-4.9.1/lib:/opt/gcc-4.9.1/lib64 but still on run time the previous binaries/libraries are being found [rcm@rcm ~]$ which gcc /usr/bin/gcc How to handle this? On Wed, Aug 6, 2014 at 8:16 AM, Syed Ahsan Ali Bokhari wrote: > Well explained Jonathan > Thanks > > On Tue, Aug 5, 2014 at 10:10 PM, Jonathan Wakely wrote: >> On 5 August 2014 17:54, Syed Ahsan Ali Bokhari wrote: >>> Yes I did that before, I removed the gcc and when I tried to build a >>> new gcc from source it crashed complaining that no C compiler is >>> present. Isn't it weird that installation of C compiler needs C >>> compiler as a pre-requisite.? >> >> You don't need a compiler to install a C compiler, you need a compiler >> to *compile* a C compiler, just like you need a compiler to compile >> any program. >> >> If you just want to install gcc you use 'yum' or 'rpm' to do that, >> instead of compiling it yourself. >> >> If you want to compile gcc, obviously you need a compiler of some kind. >> >> It might seem weird but it's not, it's quite normal. >> http://en.wikipedia.org/wiki/Bootstrapping_%28compilers%29 > > > > -- > Syed Ahsan Ali Bokhari > Electronic Engineer > Research & Development Division > Pakistan Meteorological Department H-8/2, Islamabad. > Phone # off +92519250361 > Cell # +923155145014 > Fax # +92519250368 > www.pmd.gov.pk -- Syed Ahsan Ali Bokhari Electronic Engineer Research & Development Division Pakistan Meteorological Department H-8/2, Islamabad. Phone # off +92519250361 Cell # +923155145014 Fax # +92519250368 www.pmd.gov.pk