Hi Gaurav, I recommend that you do *NOT* build your own GCC on Solaris. I recommend that you download a pre-build GCC and install it on your Solaris platform: http://www.sunfreeware.com/programlistsparc10.html But if you really want to build your own GCC, please make sure you have already installed all the prerequisites, and follow all the build instructions diligently: http://gcc.gnu.org/install/ Firstly, you should not ./configure ... in my experience, that never works (as documented). And, secondly, you need to have a C compiler already installed (amongst other pre-installed prerequisites.) HTH, --Eljay