question about shared builds with Sun native compilers...

[Ed Hartnett]

Howdy all!

Firstly, thanks for developing libtool! It's really helpful!

I am using it to distribute a freeware scientific data library,
netcdf. The netcdf distribution actually builds more than one
library. It builds a core C library, and a fortran library. The
fortran library calls the C library.

The way I handle this is to first build the fortran library, then the
C library.

This works fine, except on my SunOS 5.8 sparc system, using SUNW
compilers. In that case, it refuses to build the shared fortran
library, complaining that the C library is not yet available:

libtool: compile:  cc -DHAVE_CONFIG_H -I. -I.. -I/include -I../libsrc4
-I/upc/share/ed/local/buddy/include -g -c fort-nc4.c -o fort-nc4.o
>/dev/null 2>&1
/bin/bash ../libtool --tag=CC    --mode=link cc  -g
-L/upc/share/ed/local/buddy/lib -version-info 5:0:0 -no-undefined  -o
libnetcdff.la -rpath
/buddy/netcdf/n4_buddy/netcdf-4.0-snapshot2008042120/install/lib
fort-attio.lo fort-control.lo fort-dim.lo  fort-genatt.lo
fort-geninq.lo fort-genvar.lo fort-lib.lo  fort-misc.lo
fort-v2compat.lo fort-vario.lo fort-var1io.lo  fort-varaio.lo
fort-varmio.lo fort-varsio.lo fort-nc4.lo ../f90/libnetcdff90.la
-lsocket -lnsl
libtool: link: cc -G -z defs -h libnetcdff.so.5 -o
.libs/libnetcdff.so.5.0.0  .libs/fort-attio.o .libs/fort-control.o
.libs/fort-dim.o .libs/fort-genatt.o .libs/fort-geninq.o
.libs/fort-genvar.o .libs/fort-lib.o .libs/fort-misc.o
.libs/fort-v2compat.o .libs/fort-vario.o .libs/fort-var1io.o
.libs/fort-varaio.o .libs/fort-varmio.o .libs/fort-varsio.o
.libs/fort-nc4.o  -z allextract ../f90/.libs/libnetcdff90.a -z
defaultextract  -L/upc/share/ed/local/buddy/lib -lsocket -lnsl -lc   
Undefined                                                first
referenced
 symbol                             in file
nc_inq_att                          .libs/fort-genatt.o
nc_inq_dim                          .libs/fort-dim.o
nc_inq_var                          .libs/fort-genvar.o
etc.

(The missing functions are from the C library.)

The shared build with gcc and gfortran works fine, as does the static
build with the SUNW compilers.

Only the shared SUNW build is a problem.

If anyone could shed some light on this problem, that would be greatly
appreciated!

Thanks!

Ed
-- 
Ed Hartnett  -- address@hidden