Dear allI am trying to compile a parallel executable of GROMACS using gcc and the SCore MPI implementation on a Linux/Opteron cluster. (Essentially, SCore is a highly efficient MPICH incarnation that circumvents the TCP/IP stack; see: http://www.pccluster.org/.)
SCore MPI requires linking to some extra libraries that exist only as static libraries. Hence, compiling GROMACS with --enable-shared fails with the expected complaints along the lines of "relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC".
So I switched to --disable-shared to make a static executable. However, this fails as well because the GROMACS build procedure still tries to link explicitly to the shared version of the FFTW libraries (libfftw3.so):
mpicc -O3 -fomit-frame-pointer -finline-functions -Wall -Wno-unused - funroll-all-loops -o mdrun glaasje.o gctio.o init_sh.o ionize.o do_gct.o relax_sh.o repl_ex.o xutils.o compute_io.o md.o mdrun.o genalg.o -L/usr/local/lib ../mdlib/.libs/libmd_d.a -L/usr/X11R6/ lib64 ../gmxlib/.libs/libgmx_d.a -lnsl /usr/local/lib/libfftw3.so - lm /usr/X11R6/lib64/libXm.so -lXmu -lXext -lXp -lXt -lSM -lICE -lX11
Of course, the linker falls over, complaining that: ld: attempted static link of dynamic object `/usr/local/lib/libfftw3.so'So my question is if and how I can convince the make procedure to use the static version of the FFTW library, which is available on the system. Maybe somebody could also comment on why the FFTW lib needs to be linked against explicitly at all, rather than using -lfftw3 and letting the linker figure out whether to use the static or the shared version.
Any hints would be greatly appreciated! Cheers Hans ....................................................... Dr. Hans Martin Senn Lord Kelvin/Adam Smith Research Fellow University of Glasgow Department of Chemistry Joseph Black Building, University Avenue, Glasgow G12 8QQ, Scotland/UKE-mail: [EMAIL PROTECTED], phone: +44 141 330 6574, fax: +44 141 330 4888
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