Dear all, The standard way of installing GCC requires gmp and mpfr libraries as prerequisites. i.e. Install first gmp, then build mpfr with gmp, then build gcc with gmp and mpfr. But, here its required me to compile/install GCC-4.4.0 package on CentOS5.2 without using "gmp" library. # /home3/packages/gcc-4.4.0/configure --without-mpfr --without-gmp checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking target system type... x86_64-unknown-linux-gnu checking for a BSD-compatible install... /usr/bin/install -c checking whether ln works... yes checking whether ln -s works... yes checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ANSI C... none needed checking for g++... g++ checking whether we are using the GNU C++ compiler... yes checking whether g++ accepts -g... yes checking for gnatbind... no checking for gnatmake... no checking whether compiler driver understands Ada... no checking how to compare bootstrapped objects... cmp --ignore-initial=16 $$f1 $$f2 checking for correct version of gmp.h... no configure: error: Building GCC requires GMP 4.1+ and MPFR 2.3.2+. Try the --with-gmp and/or --with-mpfr options to specify their locations. Copies of these libraries' source code can be found at their respective hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/. See also http://gcc.gnu.org/install/prerequisites.html for additional info. If you obtained GMP and/or MPFR from a vendor distribution package, make sure that you have installed both the libraries and the header files. They may be located in separate packages. So is there a way to compile GCC without gmp library? Is that possible? - Sangamesh