to open not-yet-loaded phar and fails on compressed files
# By Gregory's request
# Sorry, can't find how to write test case for that - it reproduces
# for me only under bytecode-caching. Suggestions welcome.
* found felipe's segfault in util.c and fixed the segfault (3 tests fail due to odd behavior of . and .. on this machine)
* fixed serious flaws in the setting/resetting of is_data - now it works properly. Assume
all new PharData are tar-based, and allow passing Phar::ZIP to PharData constructor to override this
* fix broken earlier commit, introduced segfault that broke 20 tests here
this is done by removing zlib/bz2 explicit dependencies because they are unnecessary
we only ever use the stream filter, and the check for existence has
been moved to runtime where it is after startup
Phar is enabled as a shared extension by default in order to allow zlib/bz2 to be built shared. If phar is statically built,
both zlib and bz2 must be statically built in order for phar to use them, so default compile as shared is much more flexible
which then allows easy creation of tar/zip-based phar archives with a simple rename even when phar.readonly=1. Plug the hole very tightly, allowing read access to
files, and also excluding them from opendir() output
