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Re: How to uninstall pre-installed previous version and install new
- From: Syed Ahsan Ali Bokhari <ahsan dot pmd at gmail dot com>
- To: Kyrill Tkachov <kyrylo dot tkachov at arm dot com>
- Cc: Jonathan Wakely <jwakely dot gcc at gmail dot com>, Ãngel GonzÃlez <keisial at gmail dot com>, gcc-help <gcc-help at gcc dot gnu dot org>
- Date: Wed, 6 Aug 2014 17:51:19 +0500
- Subject: Re: How to uninstall pre-installed previous version and install new
- Authentication-results: sourceware.org; auth=none
- References: <CAOjP03VxDgEAwMGHZoTbGiKbZgE+eNAsOz7rGt9jbFKS=36_og at mail dot gmail dot com> <CAH6eHdQdE=VNB0G1u_bFkC6_8cE34=idAB3jegSVZ4+7EamaaQ at mail dot gmail dot com> <53E0A4B6 dot 1090007 at gmail dot com> <CAOjP03X4u8Q8eDzarSXL6ebxR3ZxZJ2B3aS2vFenomQ1Ddop-g at mail dot gmail dot com> <CAH6eHdRRxKCit_3wJ31CtZU0GhLTi-StbwMoQy-oa4txPZyYNA at mail dot gmail dot com> <CAOjP03WdV9Km2Y6aRscTJjxSuf4eSt3b12V0ftF_wTT7oyW80g at mail dot gmail dot com> <CAOjP03XJ3J4vLWtRrRsafTigW4_g1YzvbLpGt9UrWQqWjhcmSw at mail dot gmail dot com> <53E2023E dot 90404 at arm dot com>
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 <kyrylo.tkachov@arm.com> 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
>> <ahsan.pmd@gmail.com> wrote:
>>>
>>> Well explained Jonathan
>>> Thanks
>>>
>>> On Tue, Aug 5, 2014 at 10:10 PM, Jonathan Wakely <jwakely.gcc@gmail.com>
>>> 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