From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5439 invoked by alias); 6 Aug 2014 12:51:23 -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 5430 invoked by uid 89); 6 Aug 2014 12:51:22 -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-ie0-f169.google.com Received: from mail-ie0-f169.google.com (HELO mail-ie0-f169.google.com) (209.85.223.169) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Wed, 06 Aug 2014 12:51:21 +0000 Received: by mail-ie0-f169.google.com with SMTP id rd18so2767553iec.14 for ; Wed, 06 Aug 2014 05:51:19 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.51.17.66 with SMTP id gc2mr18165750igd.40.1407329479528; Wed, 06 Aug 2014 05:51:19 -0700 (PDT) Received: by 10.64.29.194 with HTTP; Wed, 6 Aug 2014 05:51:19 -0700 (PDT) In-Reply-To: <53E2023E.90404@arm.com> References: <53E0A4B6.1090007@gmail.com> <53E2023E.90404@arm.com> Date: Wed, 06 Aug 2014 12:51:00 -0000 Message-ID: Subject: Re: How to uninstall pre-installed previous version and install new From: Syed Ahsan Ali Bokhari To: Kyrill Tkachov Cc: Jonathan Wakely , =?UTF-8?B?w4FuZ2VsIEdvbnrDoWxleg==?= , gcc-help Content-Type: text/plain; charset=UTF-8 X-IsSubscribed: yes X-SW-Source: 2014-08/txt/msg00042.txt.bz2 Thank you Kyrill. Now the new path is being read. Does the same hold for LD_LIBRARY_PATH? On Wed, Aug 6, 2014 at 3:23 PM, Kyrill Tkachov wrote: > > On 06/08/14 11:11, Syed Ahsan Ali Bokhari wrote: >> >> 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? > > > PATH is usually read left to right, so you'd want to add your new path to > the beginning like so: > > export PATH=/opt/gcc-4.9.1/bin:$PATH > > Kyrill > > > >> 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