[U-Boot] Compiling U-BOOT bootloader on x86

I have download and extracted u-boot-1.1.6 on Linux ubuntu. I just want to compile the source code using GCC(not targeting cross compilation for any embedded platform).

I tried running provided MAKEALL makefile but "powerpc-linux-gcc : Not Found" is happening.

My understanding is irrespective of platform the source code should compile.

What are the necessary makefile and environment changes i need to do for compilation on x86?