No, I don't think so. Library sizes doesn't differ that much.
x86 # ldd /usr/bin/perl5.12.4
linux-gate.so.1 => (0xa07c8000)
libperl.so.5.12 => /usr/lib/libperl.so.5.12 (0xa067f000)
libc.so.6 => /lib/libc.so.6 (0xa051f000)
libdl.so.2 => /lib/libdl.so.2 (0xa051b000)
libm.so.6 => /lib/libm.so.6 (0xa04f5000)
libcrypt.so.1 => /lib/libcrypt.so.1 (0xa04c3000)
/lib/ld-linux.so.2 (0xa07c9000)
x86 # ls -l /usr/lib/libperl.so.5.12.4 /lib/lib{c,dl,m,crypt}-2.13.so
+/lib/ld-2.13.so
-rwxr-xr-x 1 root root 117748 Jan 22 07:24 /lib/ld-2.13.so
-rwxr-xr-x 1 root root 1429836 Jan 22 07:24 /lib/libc-2.13.so
-rwxr-xr-x 1 root root 34012 Jan 22 07:24 /lib/libcrypt-2.13.so
-rwxr-xr-x 1 root root 9488 Jan 22 07:24 /lib/libdl-2.13.so
-rwxr-xr-x 1 root root 149176 Jan 22 07:24 /lib/libm-2.13.so
-rwxr-xr-x 1 root root 1321752 Dec 13 23:41 /usr/lib/libperl.so.5.12.4
x86_64 # ldd /usr/bin/perl5.12.4
linux-vdso.so.1 => (0x00007e8ee2651000)
libperl.so.5.12 => /usr/lib64/libperl.so.5.12 (0x00007e8ee20c2
+000)
libc.so.6 => /lib64/libc.so.6 (0x00007e8ee1d36000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007e8ee1b32000)
libm.so.6 => /lib64/libm.so.6 (0x00007e8ee18b4000)
libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007e8ee167d000)
/lib64/ld-linux-x86-64.so.2 (0x00007e8ee2433000)
x86_64 # ls -l /usr/lib64/libperl.so.5.12.4 /lib64/lib{c,dl,m,crypt}-2
+.13.so /lib64/ld-2.13.so
-rwxr-xr-x 1 root root 136616 Feb 12 16:38 /lib64/ld-2.13.so
-rwxr-xr-x 1 root root 1608776 Feb 12 16:38 /lib64/libc-2.13.so
-rwxr-xr-x 1 root root 34720 Feb 12 16:38 /lib64/libcrypt-2.13.so
-rwxr-xr-x 1 root root 14320 Feb 12 16:38 /lib64/libdl-2.13.so
-rwxr-xr-x 1 root root 514000 Feb 12 16:38 /lib64/libm-2.13.so
-rwxr-xr-x 1 root root 1507552 Feb 12 16:52 /usr/lib64/libperl.so.5.12
+.4
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