tar zxvf readline-5.2.tar.gz
cd readline-5.2
export MACOSX_DEPLOYMENT_TARGET=10.5
export CFLAGS="-arch x86_64 -g -Os -pipe -no-cpp-precomp"
export CCFLAGS="-arch x86_64 -g -Os -pipe"
export CXXFLAGS="-arch x86_64 -g -Os -pipe"
export LDFLAGS="-arch x86_64 -bind_at_load"
./configure --prefix=/usr/local
cd shlib
sed -e 's/-dynamic/-dynamiclib/' Makefile > Makefile.good
mv Makefile.good Makefile
cd ..
make && sudo make install