andrew:~/PAR-0.89$ perl Makefile.PL
...
mktmpdir.h:72: sha1.c: No such file or directory
...

##</code><code>##

t/2-pp.......Can't load '/tmp/par-andrew/temp-23135/14504270.so' for module IO: /tmp/par-andrew/temp-23135/14504270.so: failed to map segment from shared object: Operation not permitted at /usr/lib/perl5/i386-linux/DynaLoader.pm line 206.
 at ../blib/lib/PAR/Heavy.pm line 81
Compilation failed in require at /usr/lib/perl5/i386-linux/IO/Handle.pm line 256.
BEGIN failed--compilation aborted at /usr/lib/perl5/i386-linux/IO/Handle.pm line 256.
Compilation failed in require at /usr/lib/perl5/i386-linux/IO/Seekable.pm line 101.
BEGIN failed--compilation aborted at /usr/lib/perl5/i386-linux/IO/Seekable.pm line 101.
Compilation failed in require at /usr/lib/perl5/i386-linux/IO/File.pm line 112.
BEGIN failed--compilation aborted at /usr/lib/perl5/i386-linux/IO/File.pm line 112.
Compilation failed in require at -e line 305.