[gmx-developers] build libmd with additional libraries

[Steyer, Michael]

I modified the gromacs-4.5.5/src/mdlib/ns.c file, there are different libraries now used by ns.c.
As ns.o will later be linked to libmd, I want to know where I can add my additional includes and libraries.
I focused on the gromacs-4.5.5/src/mdlib/Makefile.am which will then generate Makefile.in, using the autotools.

The gromacs-4.5.5/src/mdlib/Makefile.am:
-------------------------------------------------------------------------------------------------------------------------------------------------------------
## Process this file with automake to produce Makefile.in
# Note: Makefile is automatically generated from Makefile.in by the configure
# script, and Makefile.in is generated from Makefile.am by automake.

AM_CPPFLAGS = -I$(top_srcdir)/include -DGMXLIBDIR=\"$(datadir)/top\"

libmd at LIBSUFFIX@_la_LIBADD         = ../gmxlib/libgmx at LIBSUFFIX@.la
libmd at LIBSUFFIX@_la_DEPENDENCIES   = ../gmxlib/libgmx at LIBSUFFIX@.la
libmd at LIBSUFFIX@_la_LDFLAGS        = -no-undefined -version-info @SHARED_VERSION_INFO@ $(FFT_LIBS) $(XML_LIBS) $(PT
HREAD_LIBS)

lib_LTLIBRARIES = libmd at LIBSUFFIX@.la

pkgconfigdir = ${libdir}/pkgconfig
pkgconfig_DATA = libmd at LIBSUFFIX@.pc

EXTRA_DIST = libmd.pc.cmakein

libmd at LIBSUFFIX@_la_SOURCES = \
        calcmu.c        calcvir.c       constr.c        \
        coupling.c      \
        domdec.c        domdec_box.c    domdec_con.c    \
        domdec_network.c domdec_setup.c domdec_top.c    \
        ebin.c          \
        edsam.c         ewald.c         \
        force.c         forcerec.c      \
        ghat.c          init.c          \
    iteratedconstraints.c   md_support.c    \
        mdatom.c        mdebin.c        minimize.c      \
        mvxvf.c         ns.c            nlistheuristics.c    nsgrid.c   \
        perf_est.c      genborn.c                       \
        genborn_sse2_single.c                           \
        genborn_sse2_single.h                           \
        genborn_sse2_double.c                           \
        genborn_sse2_double.h                           \
        genborn_allvsall.c                              \
        genborn_allvsall.h                              \
        genborn_allvsall_sse2_single.c                  \
        genborn_allvsall_sse2_single.h                  \
        genborn_allvsall_sse2_double.c                  \
        genborn_allvsall_sse2_double.h                  \
        gmx_qhop_parm.c gmx_qhop_parm.h                 \
        gmx_qhop_xml.c  gmx_qhop_xml.h                  \
        groupcoord.c                    groupcoord.h    \
        pme.c           pme_pp.c        pppm.c          \
        partdec.c       pull.c          pullutil.c      \
        rf_util.c       shakef.c        sim_util.c      \
        shellfc.c       stat.c          \
        tables.c        tgroup.c        tpi.c   \
        update.c        vcm.c           vsite.c \
        wall.c          wnblist.c       \
        csettle.c       clincs.c        \
        qmmm.c          gmx_fft.c       gmx_parallel_3dfft.c    \
        fft5d.c         fft5d.h         \
        gmx_wallcycle.c \
        qm_gaussian.c   qm_mopac.c      qm_gamess.c             \
        gmx_fft_fftw2.c gmx_fft_fftw3.c gmx_fft_fftpack.c       \
        gmx_fft_mkl.c   qm_orca.c       mdebin_bar.c            \
        mdebin_bar.h

LDADD = ../mdlib/libmd at LIBSUFFIX@.la ../gmxlib/libgmx at LIBSUFFIX@.la

EXTRA_PROGRAMS = gmx_qhop_db_test

gmx_qhop_db_test_LDADD = ../mdlib/libmd at LIBSUFFIX@.la ../gmxlib/libgmx at LIBSUFFIX@.la ../kernel/libgmxpreprocess at LIB
SUFFIX at .la

# clean all libtool libraries, since the target names might have changed
CLEANFILES     = *.la *~ \\\#*
-------------------------------------------------------------------------------------------------------------------------------------------------------------

I tried to add my libraries to the "LDADD" as well as the "libmd at LIBSUFFIX@_la_LDFLAGS" variables, without success.
During linkage, I still get "gromacs-4.5.5/src/mdlib/.libs/libmd.so: undefined reference to ..." errors.

Which is the easiest way to add my required libraries to make them part of libmd?

Thanks and regards,
Michael Steyer

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