Thanks a lot Ian. Setting LD_LIBRARY_PATH worked. I was thrown off because it was able to find gmp, mpc, and mpfr, and I had followed the same steps for isl as well. This step is mentioned on the wiki, but it maybe useful to add this with the instructions that are in gcc-4.8.2/INSTALL/index.html. I also needed to get install libc6-dev-i386. This was very easy, but wasn't mentioned anywhere in the requrements (I think: or maybe I misssed it). It seems to be working. Thanks again. Rishi -------------------------------------------- On Mon, 10/21/13, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: Subject: Re: Problem configuring gcc-4.82. with ISL To: "Rishi Sharma" <rishi8up@xxxxxxxxx> Cc: "gcc-help@xxxxxxxxxxx" <gcc-help@xxxxxxxxxxx> Date: Monday, October 21, 2013, 10:51 AM On Mon, Oct 21, 2013 at 5:52 AM, Rishi Sharma <rishi8up@xxxxxxxxx> wrote: > Attempt to install on ubuntu 12.04 on intel x86_64 fails at the configure step. > > On searching, I found some claims that it is because on the step, > configure:5905: checking for version 0.11 of > ISLit uses the value for the previous step, configure:5857: checking for version 0.10 of ISL and doesn't update the value. Though I thought that was fixed. Yes, that was fixed. > configure:5857: checking for version 0.10 of ISL > configure:5876: gcc -o conftest -g -O2 -I/home/rishi/local/include -I/home/rishi/local/include -I/home/rishi/local/include > -I/home/rishi/local/include -L/home/rishi/local/lib conftest.c -lisl >&5 > configure:5876: $? = 0 > configure:5876: ./conftest > ./conftest: error while loading shared libraries: libisl.so.10: cannot open shared object file: No such file or directory I think this is your problem. Linking with -lisl is causing you to link against libisl.so.10, but that shared library is not found at runtime. You need to set your LD_LIBRARY_PATH environment variable or add the directory to /etc/ld.so.conf. Ian
