pgsql-server: > win32 doesn't support a static initializer for mutexes,

Log Message:
-----------
> win32 doesn't support a static initializer for mutexes, thus the first
> user must initialize the lock. The problem are concurrent "first" users
> - the pthread_mutex_t initialization must be synchronized.
> The current implementation is broken, the attached patches fixes that:
> mutex_initlock is a spinlock. If the pthread_mutex_t mutex is not
> initialized, then the spinlock is acquired, if the pthread_mutex_t is
> initialized if it's not yet initialized and then the spinlock is dropped.

Manfred Spraul

Modified Files:
--------------
    pgsql-server/src/interfaces/libpq:
        fe-connect.c (r1.277 -> r1.278)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/interfaces/libpq/fe-connect.c.diff?r1=1.277&r2=1.278)
        fe-secure.c (r1.44 -> r1.45)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/interfaces/libpq/fe-secure.c.diff?r1=1.44&r2=1.45)