This may be Intuitively Obvious To the Casual Perl Monk (IOTTCPM) but I thought I would point it out anyway. If you have already built things as perl packages (h2xs -XA packagename), you can create a Makefile.PL one level up from the packages to control them as a unit.

For example if I start out with a bunch of packages:

   project/packages/A
                     Makefile.PL
                     A.pm
                   /B
                     Makefile.PL
                     B.pm
                   /C
                     Makefile.PL
                     C.pm
[download]

You can add a Makefile.PL in the packages directory to span all packages below that point:

use ExtUtils::MakeMaker;
 
# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
WriteMakefile(
        NAME => 'MyProjectPackages',
        # One line description of the module.
        ABSTRACT => 'A description of the rollup',
        AUTHOR => 'osunderdog<brucelowther@mac.com>',
        # Used by 'make install' which copies files from INST_SCRIPT t
+o this directory.
        VERSION  => '0.01',
        );
[download]

Building this Makefile.PL produces the following output:

$perl Makefile.PL
Checking if your kit is complete...
Looks good
Writing Makefile for A
Checking if your kit is complete...
Looks good
Writing Makefile for B
Checking if your kit is complete...
Looks good
Writing Makefile for C
Writing Makefile for MyProjectPackages
[download]

You can even test everything. (If you have diligently written all your tests!)

$make test
make[1]: Entering directory `/tmp/project/packages/A'
make[1]: Leaving directory `/tmp/project/packages/A'
make[1]: Entering directory `/tmp/project/packages/B'
make[1]: Leaving directory `/tmp/project/packages/B'
make[1]: Entering directory `/tmp/project/packages/C'
make[1]: Leaving directory `/tmp/project/packages/C'
make[1]: Entering directory `/tmp/project/packages/A'
PERL_DL_NONLAZY=1 /nfs/mu/apps/perl/5.8.4/bin/perl "-MExtUtils::Comman
+d::MM" "-e" "test_harness(0, '../blib/lib', '../blib/arch')" t/*.t
t/1....ok
All tests successful.
Files=1, Tests=1,  1 wallclock secs ( 0.06 cusr +  0.01 csys =  0.07 C
+PU)
make[1]: Leaving directory `/tmp/project/packages/A'
make[1]: Entering directory `/tmp/project/packages/B'
PERL_DL_NONLAZY=1 /nfs/mu/apps/perl/5.8.4/bin/perl "-MExtUtils::Comman
+d::MM" "-e" "test_harness(0, '../blib/lib', '../blib/arch')" t/*.t
t/1....ok
All tests successful.
Files=1, Tests=1,  0 wallclock secs ( 0.04 cusr +  0.00 csys =  0.04 C
+PU)
make[1]: Leaving directory `/tmp/project/packages/B'
make[1]: Entering directory `/tmp/project/packages/C'
PERL_DL_NONLAZY=1 /nfs/mu/apps/perl/5.8.4/bin/perl "-MExtUtils::Comman
+d::MM" "-e" "test_harness(0, '../blib/lib', '../blib/arch')" t/*.t
t/1....ok
All tests successful.
Files=1, Tests=1,  0 wallclock secs ( 0.04 cusr +  0.01 csys =  0.05 C
+PU)
make[1]: Leaving directory `/tmp/project/packages/C'
[download]

Finally, in answer to your question, you can roll up a distribution:

$make manifest
/usr/bin/perl "-MExtUtils::Manifest=mkmanifest" -e mkmanifestAdded to 
+MANIFEST: A/A.pm
Added to MANIFEST: A/Changes
Added to MANIFEST: A/Makefile.PL
Added to MANIFEST: A/MANIFEST
Added to MANIFEST: A/README
Added to MANIFEST: A/t/1.t
Added to MANIFEST: B/B.pm
Added to MANIFEST: B/Changes
Added to MANIFEST: B/Makefile.PL
Added to MANIFEST: B/MANIFEST
Added to MANIFEST: B/README
Added to MANIFEST: B/t/1.t
Added to MANIFEST: C/C.pm
Added to MANIFEST: C/Changes
Added to MANIFEST: C/Makefile.PL
Added to MANIFEST: C/MANIFEST
Added to MANIFEST: C/README
Added to MANIFEST: C/t/1.t
Added to MANIFEST: Makefile.PL
Added to MANIFEST: MANIFEST
Added to MANIFEST: META.yml
 
$make dist
Generating META.yml
Adding META.yml to MANIFEST
rm -rf MyProjectPackages-0.01
/usr/bin/perl "-MExtUtils::Manifest=manicopy,maniread" \
        -e "manicopy(maniread(),'MyProjectPackages-0.01', 'best');"
mkdir MyProjectPackages-0.01
mkdir MyProjectPackages-0.01/B
mkdir MyProjectPackages-0.01/A
mkdir MyProjectPackages-0.01/B/t
mkdir MyProjectPackages-0.01/C
mkdir MyProjectPackages-0.01/C/t
mkdir MyProjectPackages-0.01/A/t
tar cvf MyProjectPackages-0.01.tar MyProjectPackages-0.01
MyProjectPackages-0.01/
MyProjectPackages-0.01/B/
MyProjectPackages-0.01/B/Changes
MyProjectPackages-0.01/B/t/
MyProjectPackages-0.01/B/t/1.t
MyProjectPackages-0.01/B/MANIFEST
MyProjectPackages-0.01/B/B.pm
MyProjectPackages-0.01/B/README
MyProjectPackages-0.01/B/Makefile.PL
MyProjectPackages-0.01/A/
MyProjectPackages-0.01/A/A.pm
MyProjectPackages-0.01/A/Makefile.PL
MyProjectPackages-0.01/A/Changes
MyProjectPackages-0.01/A/MANIFEST
MyProjectPackages-0.01/A/README
MyProjectPackages-0.01/A/t/
MyProjectPackages-0.01/A/t/1.t
MyProjectPackages-0.01/C/
MyProjectPackages-0.01/C/C.pm
MyProjectPackages-0.01/C/Makefile.PL
MyProjectPackages-0.01/C/Changes
MyProjectPackages-0.01/C/README
MyProjectPackages-0.01/C/t/
MyProjectPackages-0.01/C/t/1.t
MyProjectPackages-0.01/C/MANIFEST
MyProjectPackages-0.01/MANIFEST
MyProjectPackages-0.01/META.yml
MyProjectPackages-0.01/Makefile.PL
rm -rf MyProjectPackages-0.01
gzip --best MyProjectPackages-0.01.tar
[download]

I find this to be a great way to develop a perl project consisting on many packages.