error reporting

I have postgres 7.2.1
perl -v says:
This is perl, v5.6.1 built for i386-linux

Copyright 1987-2001, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on
this system using `man perl' or `perldoc perl'. If you have access to the
Internet, point your browser at http://www.perl.com/, the Perl Home Page.

perl -V says:
Summary of my perl5 (revision 5.0 version 6 subversion 1) configuration:
Platform:
osname=linux, osvers=2.4.2, archname=i386-linux
uname='linux grommet 2.4.2 #1 smp sun feb 25 16:33:33 pst 2001 i686
unknown '
config_args='-de -Dprefix=/usr -Darchname=i386-linux
-Dprivlib=/usr/lib/perl5 -Darchlib=/usr/lib/perl5/i386-linux
-Dsitelib=/usr/lib/perl5/site_perl
-Dsitearch=/usr/lib/perl5/site_perl/i386-linux'
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef use5005threads=undef useithreads=undef
usemultiplicity=undef
useperlio=undef d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
Compiler:
cc='cc', ccflags ='-fno-strict-aliasing -I/usr/local/include
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O2',
cppflags='-fno-strict-aliasing -I/usr/local/include'
ccversion='', gccversion='2.95.3 20010315 (release)', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
lseeksize=8
alignbytes=4, usemymalloc=n, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib
libs=-lnsl -lndbm -lgdbm -ldl -lm -lc -lcrypt -lutil
perllibs=-lnsl -ldl -lm -lc -lcrypt -lutil
libc=/lib/libc-2.2.2.so, so=so, useshrplib=false, libperl=libperl.a
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'

Characteristics of this binary (from libperl):
Compile-time options: USE_LARGE_FILES
Built under linux
Compiled at Apr 11 2001 22:57:30
@INC:
/usr/lib/perl5/i386-linux
/usr/lib/perl5
/usr/lib/perl5/site_perl/i386-linux
/usr/lib/perl5/site_perl
/usr/lib/perl5/site_perl

version 1.8.0 of pgsql_perl5

Slackware linux 8.0

I have successfully installed postgresql (./configure without parameters)

in src/interfaces/perl5 (no root user) i have run perl Makefile.PL
when i run make i obtain:
bash-2.05$ make
make -C ../../../src/interfaces/libpq all
make[1]: Entering directory `/tmp/postgresql-7.2.1/src/interfaces/libpq'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/tmp/postgresql-7.2.1/src/interfaces/libpq'
make -f Makefile all VPATH=
make[1]: Entering directory `/tmp/postgresql-7.2.1/src/interfaces/perl5'
make[1]: *** No rule to make target `/Pg.pm', needed by `pm_to_blib'. Stop.
make[1]: Leaving directory `/tmp/postgresql-7.2.1/src/interfaces/perl5'
make: *** [all] Error 2

what can i do ?

Thanks
Franco Carinato