On 2014.08.26 at 12:32 +0500, Syed Ahsan Ali Bokhari wrote: > I have compiled gcc 4.9 in CentOS 6.5 which had gcc 4.4.7 by default. > the default gcc is contained is /usr/bin directory. I have compiled a > newer version gcc 4.9 in /usr/local/gcc4.9 directory and added this > path in .bashrc as folllow > > export PATH=$PATH:/usr/local/gcc-4.9.1/bin > export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/gcc-4.9.1/lib/ You probably want: export PATH=/usr/local/gcc-4.9.1/bin:$PATH You can also use "make CC=/usr/local/gcc-4.9.1/bin/gcc" to build the kernel. -- Markus