Yes, the same holds for LD_LIBRARY_PATH also. In fact, a program/library will be searched in the order of sequence of path specified from left to right in its corresponding environment variable. Regards, Raghunath Lolur. On Wed, Aug 6, 2014 at 6:21 PM, Syed Ahsan Ali Bokhari <ahsan.pmd@xxxxxxxxx> wrote: > 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
