i686-cm-linux-gcc: Command not found

While cross compiling OpenWRT, I have I have replaced OpenWRT's toolchain with toolchain i686 architecture. But, I am getting below mentioned error: make: Leaving directory `/home/hclintel/pankaj/fresh/trunk/build_dir/target-i386_i486_musl-1.1.10/linux-x86_generic/linux-3.18.18' ./scripts/gcc-version.sh: line 25: i686-cm-linux-gcc: command not found ./scripts/gcc-version.sh: line 26: i686-cm-linux-gcc: command not found make: Entering directory `/home/hclintel/pankaj/fresh/trunk/build_dir/target-i386_i486_musl-1.1.10/linux-x86_generic/linux-3.18.18' arch/x86/Makefile:114: stack-protector enabled but compiler support broken Makefile:657: Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: -fstack-protector not supported by compiler make: i686-cm-linux-gcc: Command not found CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CC kernel/bounds.s /bin/sh: 1: i686-cm-linux-gcc: not found make: *** [kernel/bounds.s] Error 127 make: *** [prepare0] Error 2 make: Leaving directory `/home/hclintel/pankaj/fresh/trunk/build_dir/target-i386_i486_musl-1.1.10/linux-x86_generic/linux-3.18.18' make: *** [/home/hclintel/pankaj/fresh/trunk/build_dir/target-i386_i486_musl-1.1.10/linux-x86_generic/linux-3.18.18/.modules] Error 2 make: Leaving directory `/home/hclintel/pankaj/fresh/trunk/target/linux/x86' make: *** [compile] Error 2 make: Leaving directory `/home/hclintel/pankaj/fresh/trunk/target/linux' make: *** [target/linux/compile] Error 2 make: Leaving directory `/home/hclintel/pankaj/fresh/trunk' make: *** [/home/hclintel/pankaj/fresh/trunk/staging_dir/target-i386_i486_musl-1.1.10/stamp/.target_compile] Error 2 make: Leaving directory `/home/hclintel/pankaj/fresh/trunk' make: *** [world] Error 2 hclintel@hclintel-ThinkCentre-M73:~/pankaj/fresh/trunk$ When I run echo $PATH, then I get below mentioned result: /home/hclintel/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games I think I need to modify path in configuration file but I am not able to find the right place to modify path.