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@xxxxxxx> 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@xxxxxxxxx> wrote: >>> >>> Well explained Jonathan >>> Thanks >>> >>> On Tue, Aug 5, 2014 at 10:10 PM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> >>> 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
