Add statvfs
Use crypt_r instead of crypt if it exists for thread-safe.
Copy with -1 return for _PC_PATH_MAX.
Merge remote-tracking branch 'upstream/master'
Add AC_USE_SYSTEM_EXTENSIONS to configure.ac for define _GNU_SOURCE in config.h.in
strlcpy.c: Make function declaration ANSI.
strlcpy.c: add prototype to squash compiler warning.
lcurses.c: Remove some casts to chtype that only cause trouble.
Merge pull request #35 from likema/master

Add statvfs and crypt_r.
Memory leak in mkstemp

Pmkstemp not release temporary string buffer, if mkstemp() raise an error
Add mkdtemp()
Simple tests for mkdtemp and mkstemp
Rework test for glob() -- use temporary directory

This allow us to not depend from *.la files from build.
Update web site URL and be more explicit about system requirements.
Add a pointer to documentation and some basic coding principles.
Remove non-POSIX crypt_r and replace function checks with POSIX version checks.
Fix some comments.
lposix.c: make file & creation flags public; pass flags to open as an integer mask, not a table.
lposix.c: minor whitespace fixes.
tests: update for revised open API.