A most easy way as following:
(1) git clone git://git.as.harvard.edu/bmy/GEOS-Chem-Libraries
(2) revised the install.h in the downloaded file
(3) the final install.h should be like the attachment
(4) ./install.h
(5) Noting:
        Beauce all libraries are staticly installed, So when you complie the script , lingking by yourself.  when compiling the script, i.g. a "preparation_for_Hg.F90", noting the oder of libraries.
gfortran  -o run.exe preparation_for_Hg.F90 -L /usr/wangxun/nature_flux/lib/opt/gfortran/lib -lnetcdff -lnetcdf  -lhdf5_hl -lhdf5  -lz  -lm  -I /usr/wangxun/nature_flux/lib/opt/gfortran/include/

Noting: you also can exlcude the static compiling in install netcdf.