Truth is that the machine I am working on had Perl5.8.2 installed and I had to install a newer version because some applications required higher versions of core modules. The new version was installed from a package by the sysadmin together with some libs , he then symlinked the old /usr/bin/perl to /usr/local/bin/perl5.12.0 . Now, the applications depending on perl are running smoothly and I had no trouble with building 8-12 modules since then, with the exception of this one. I'll post my "perl -w" just in case you see something is wrong or missing. 
-bash-3.00$ perl -V
Summary of my perl5 (revision 5 version 12 subversion 0) configuration
+:

  Platform:
    osname=solaris, osvers=2.10, archname=sun4-solaris
    uname='sunos 5.10 generic_141444-06 sun4u sparc sunw,sun-fire-480r
+ solaris '
    config_args='-Dcc=gcc -B/usr/ccs/bin/'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=undef, usemultiplicity=undef
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=und
+ef
    use64bitint=undef, use64bitall=undef, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='gcc -B/usr/ccs/bin/', ccflags ='-fno-strict-aliasing -pipe -I/
+usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O',
    cppflags='-fno-strict-aliasing -pipe -I/usr/local/include'
    ccversion='', gccversion='3.4.6', gccosandvers='solaris2.10'
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=4321
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=1
+6
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
+ lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='gcc -B/usr/ccs/bin/', ldflags =' -L/usr/local/lib '
    libpth=/usr/local/lib /usr/lib /usr/ccs/lib
    libs=-lsocket -lnsl -lgdbm -ldl -lm -lc
    perllibs=-lsocket -lnsl -ldl -lm -lc
    libc=/lib/libc.so, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
    cccdlflags='-fPIC', lddlflags='-G -L/usr/local/lib'


Characteristics of this binary (from libperl):
  Compile-time options: PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP
                        USE_LARGE_FILES USE_PERLIO USE_PERL_ATOF
  Built under solaris
  Compiled at May  2 2010 06:52:54
  @INC:
    /usr/local/lib/perl5/site_perl/5.12.0/sun4-solaris
    /usr/local/lib/perl5/site_perl/5.12.0
    /usr/local/lib/perl5/5.12.0/sun4-solaris
    /usr/local/lib/perl5/5.12.0
    /usr/local/lib/perl5/site_perl
    .

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In reply to Re^4: Can't build modules that load Socket.so by MikeMokkas
in thread Can't build modules that load Socket.so by MikeMokkas

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