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How can I link with libguile?

From: Bruce Korb
Subject: How can I link with libguile?
Date: Sun, 12 Jan 2003 16:24:02 -0800

Here are the parameters:

1.  I cannot rely on `guile-config'.  It is often installed
    without that script.

2.  I tried a macro AG_WITHLIB_GUILE which does the following:
    a) accepts --with-libguile, --with-libguile-incdir and
    b) If any of these are provided, LIBS and CPPFLAGS are
       appropriately modified
    c) presumably using those environment variables,  (eval $ac_link) 2>&5
       will try to link this program:

>     #include <libguile.h>
>     int main () {
>       SCM fumble, bumble, stumble;
>       stumble = scm_cons( fumble, bumble );
>       stumble = scm_display( fumble, bumble );
>       stumble = scm_ilength( fumble );
>       stumble = scm_makstr( 1, 2 );
>       stumble = gh_eval_str( "stumble" );
>       scm_misc_error( "oops", "bad", bumble );
>       stumble = scm_num_eq_p( fumble, bumble );
>       scm_wrong_type_arg( "oops", 1, bumble );
>       return 0; }

    d) if all that fails, then `guile-config' is consulted.

3.  on the Source Forge Solaris build farm, this links:
>       checking whether with-libguile was specified... no
>       checking whether with-libguile-incdir was specified... no
>       checking whether with-libguile-libdir was specified... no
>       checking whether libguile can be linked with... yes

    consequently, `guile-config' is not consulted.  It is not
    consulted because libguile.h was included successfully and
    the link for the above works.


$ ../autogen-5.5.2pre3/configure \
    --prefix=/home/users/b/bk/bkorb \
    --bindir=/home/users/b/bk/bkorb/bin/sun4u-SunOS-5.8 \
$ make
/bin/bash ../libtool --mode=link gcc  -g -O2    -o autogen \
  -export-dynamic -lguile autogen-*.o ../autoopts/ \
  -lm -ldl -lgen
mkdir .libs
gcc -g -O2 -o .libs/autogen autogen-*.o  -lguile \
  ../autoopts/.libs/ -lm -lm -lm -lm -ldl -lgen \
creating autogen
top_builddir=.. \
../agen5/autogen -L ../../autogen-5.5.2pre3/autoopts \
   -Taginfo -bcolumns -DLEVEL=section \
   ../../autogen-5.5.2pre3/columns/opts.def autogen: fatal: open failed: No such file or directory
*** Signal 9
make: Fatal error: Command failed for target `gen-stamp'
Current working directory /home/users/b/bk/bkorb/=sun4u-SunOS-5.8/columns

``libguile'' lives in a place where LD_LIBRARY_PATH must be set
(viz., /opt/sfw/lib).   What is wrong?  What should I be doing to
tell libtool that it has to add a ``-R/opt/sfw/lib'' or something?
If I use ``guile-config'' first, I'll override ``--with-libguile''.
So much pain.  :-(

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