For GMP on yustation:

CFLAGS=-march=core2 ./configure --prefix=/home/yura/temp/31

on Sveta's comp:

CFLAGS="-march=i686" ./configure ABI=32 --prefix=/home/sveta/temp/9

For BigFloat GNU MPFR must be used. Note, MPFR depends on GMP.

For MPFR on yustation:

CFLAGS="-O2 -march=core2" ./configure --prefix=/home/yura/temp/31

on Sveta's comp:

CFLAGS="-O2 -march=i686" ./configure ABI=32 --prefix=/home/sveta/temp/10 --with-gmp=/home/sveta/temp/9