I've recently set up an new machine (Suse Linux 9.0) and am trying to rebuild
a library I wrote in Firebird 1.0.2 using ESQL for C. However I am getting
an error from gpre on every *.e file in the database:

$ make -f Makefile.lnx firebird
/opt/interbase/bin/gpre -c -n -m dbutil.e
connection rejected by remote interface
(E) dbutil.e:68: Couldn't access database optix = 'optix.gdb'
1 error, no warnings
make: *** [dbutil.c] Error 1

This worked on the old (now dead) machine. I can access optix.gdb from isql
and from previously compiled code so the error makes no sense to me.
The line in question is

/* --- database declaration ------------------------------- */
EXEC SQL BEGIN DECLARE SECTION;
char db_name[256];
EXEC SQL
SET DATABASE optix = COMPILETIME 'optix.gdb'
RUNTIME :db_name;
EXEC SQL END DECLARE SECTION;

The database, optix.gdb, exists in the same directory as I my files and is the
same place I'm calling make. I have tried optix.gdb as a softlink and as an
actual file. Permissions have been everything from -rw------- root roo to
myself with -rw-r--r--

Any ideas?