ok 1 - use Gzip::Zopfli;

Thread 1 received signal SIGSEGV, Segmentation fault.
0x00000000658f0794 in perl532!Perl_drand48_r () from C:\Strawberry\perl\bin\perl532.dll
(gdb) bt
#0  0x00000000658f0794 in perl532!Perl_drand48_r () from C:\Strawberry\perl\bin\perl532.dll
#1  0x0000000067948d63 in ?? () from C:\Users\ben\Documents\Gzip-Zopfli-0.01\blib\arch\auto\Gzip\Zopfli\Zopfli.xs.dll
#2  0x000000006794985a in ?? () from C:\Users\ben\Documents\Gzip-Zopfli-0.01\blib\arch\auto\Gzip\Zopfli\Zopfli.xs.dll
#3  0x0000000067949964 in ?? () from C:\Users\ben\Documents\Gzip-Zopfli-0.01\blib\arch\auto\Gzip\Zopfli\Zopfli.xs.dll
#4  0x0000000067949bf4 in ?? () from C:\Users\ben\Documents\Gzip-Zopfli-0.01\blib\arch\auto\Gzip\Zopfli\Zopfli.xs.dll
#5  0x000000006587b1e2 in perl532!Perl_clear_defarray () from C:\Strawberry\perl\bin\perl532.dll
#6  0x00000000658dfdd6 in perl532!Perl_runops_standard () from C:\Strawberry\perl\bin\perl532.dll
#7  0x0000000065890eb7 in perl_run () from C:\Strawberry\perl\bin\perl532.dll
#8  0x00000000658f3ac8 in perl532!RunPerl () from C:\Strawberry\perl\bin\perl532.dll
#9  0x00000000004013c7 in ?? ()
#10 0x00000000004014fb in ?? ()
#11 0x00007ffe753d7034 in KERNEL32!BaseThreadInitThunk () from C:\WINDOWS\System32\kernel32.dll
#12 0x00007ffe764bd241 in ntdll!RtlUserThreadStart () from C:\WINDOWS\SYSTEM32\ntdll.dll
#13 0x0000000000000000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)