The GMP package contains math libraries. These have useful functions for arbitrary precision arithmetic.
![[Note]](../images/note.png) 
          
            If you are building for 32-bit x86, but you have a CPU which is
            capable of running 64-bit code and you have specified CFLAGS in the environment, the configure script
            will attempt to configure for 64-bits and fail. Avoid this by
            invoking the configure command below with
          
ABI=32 ./configure ...Prepare GMP for compilation:
./configure --prefix=/usr --enable-cxx --enable-mpbsd
The meaning of the new configure options:
--enable-cxx
            This parameter enables C++ support
--enable-mpbsd
            This builds the Berkeley MP compatibility library
Compile the package:
make
![[Important]](../images/important.png) 
          The test suite for GMP in this section is considered critical. Do not skip it under any circumstances.
Test the results:
make check 2>&1 | tee gmp-check-log
Ensure that all 166 tests in the test suite passed. Check the results by issuing the following command:
awk '/tests passed/{total+=$2} ; END{print total}' gmp-check-log
        Install the package:
make install
If desired, install the documentation:
mkdir -v /usr/share/doc/gmp-5.0.5
cp    -v doc/{isa_abi_headache,configuration} doc/*.html \
         /usr/share/doc/gmp-5.0.5