Installing GCC 4.9.1 from source on Fuji

To be installed: GMP 6.0.0, MPFR 3.1.2, MPC 1.0.2, GCC 4.9.1

The source codes can be obtained from one of the mirrors.
Example:
ftp://gcc.gnu.org/pub/gcc/infrastructure/

GMP is needed by MPFR, which are needed by MPC, which are needed by GCC.

GMP

$ tar -xzvf gmp-6.0.0a.tar.bz2

$ rsync -avr /apps/GNU/GMP/6.0.0/ gmp-6.0.0/*

$ cd /apps/GNU/GMP/6.0.0

$ ./configure --disable-shared --enable-static --prefix=/apps/GNU/GMP/6.0.0

$ make && make check && make install

MPFR

$ tar -xzvf mpfr-3.1.2.tar.gz

$ rsync -avr /apps/GNU/MPFR/3.1.2-new/ mpfr-3.1.2/*

$ cd /apps/GNU/MPFR/3.1.2-new

$ ./configure --disable-shared --enable-static --prefix=/apps/GNU/MPFR/3.1.2-new --with-gmp=/apps/GNU/GMP/6.0.0 

$ make && make check && make install

MPC

$ tar -xzvf mpc-1.0.2.tar.gz

$ rsync -avr /apps/GNU/MPC/1.0.2/ mpc-1.0.2/*

$ cd /apps/GNU/MPC/1.0.2

$ ./configure --disable-shared --enable-static --prefix=/apps/GNU/MPC/1.0.2 --with-gmp=/apps/GNU/GMP/6.0.0 --with-mpfr=/apps/GNU/MPFR/3.1.2-new

$ make && make check && make install

GCC

$ tar -xzvf gcc-4.9.1.tar.gz

$ cd /apps/GNU/GCC/4.9.1

$ <path-to-gcc-source>/gcc-4.9.1/configure --with-gmp=/apps/GNU/GMP/6.0.0 --with-mpfr=/apps/GNU/MPFR/3.1.2-new --with-mpc=/apps/GNU/MPC/1.0.2 --disable-multilib

$ make #This will take a long time

$ make install

After successful build, there is one important message:

Libraries have been installed in:
   /apps/GNU/GCC/4.9.1/lib/../lib64

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,-rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.