MIME-Base64-* 的安装问题

Question

[root@localhost tmp]# cd MIME-Base64-3.01
[root@localhost MIME-Base64-3.01]# perl Makefile.PL
Checking if your kit is complete...
Looks good
Writing Makefile for MIME::Base64
[root@localhost MIME-Base64-3.01]# make
cp QuotedPrint.pm blib/lib/MIME/QuotedPrint.pm
cp Base64.pm blib/lib/MIME/Base64.pm
/usr/bin/perl /usr/lib/perl5/5.8.0/ExtUtils/xsubpp  -typemap /usr/lib/perl5/5.8.0/ExtUtils/typemap  Base64.xs > Base64.xsc && mv Base64.xsc Base64.c
gcc -c   -D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -O2 -march=i386 -mcpu=i686   -DVERSION="3.01" -DXS_VERSION="3.01" -fpic "-I/usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE"   Base64.c
Running Mkbootstrap for MIME::Base64 ()
chmod 644 Base64.bs
rm -f blib/arch/auto/MIME/Base64/Base64.so
LD_RUN_PATH="" gcc  -shared -L/usr/local/lib Base64.o  -o blib/arch/auto/MIME/Base64/Base64.so
chmod 755 blib/arch/auto/MIME/Base64/Base64.so
cp Base64.bs blib/arch/auto/MIME/Base64/Base64.bs
chmod 644 blib/arch/auto/MIME/Base64/Base64.bs
cp decode-qp blib/script/decode-qp
/usr/bin/perl "-MExtUtils::MY" -e "MY->fixin(shift)" blib/script/decode-qp
cp encode-qp blib/script/encode-qp
/usr/bin/perl "-MExtUtils::MY" -e "MY->fixin(shift)" blib/script/encode-qp
cp decode-base64 blib/script/decode-base64
/usr/bin/perl "-MExtUtils::MY" -e "MY->fixin(shift)" blib/script/decode-base64
cp encode-base64 blib/script/encode-base64
/usr/bin/perl "-MExtUtils::MY" -e "MY->fixin(shift)" blib/script/encode-base64
Manifying blib/man3/MIME::QuotedPrint.3pm
Manifying blib/man3/MIME::Base64.3pm
[root@localhost MIME-Base64-3.01]# make test
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/bad-sv..........skipped
        all skipped: Perl::API needed for this test
t/base64..........ok
t/quoted-print....ok
t/unicode.........ok
t/warn............ok
All tests successful, 1 test skipped.
Files=5, Tests=335,  0 wallclock secs ( 0.26 cusr +  0.02 csys =  0.28 CPU)
[root@localhost MIME-Base64-3.01]# make install     ----这一步
Files found in blib/arch: installing files in blib/lib into architecture dependent library tree                           ---什么原因
Writing /usr/lib/perl5/5.8.0/i386-linux-thread-multi/auto/MIME/Base64/.packlist
Appending installation info to /usr/lib/perl5/5.8.0/i386-linux-thread-multi/perll
     ------高手指点