There was a code base where people wrapped glibc-functions. Most of the time it was straight calls to the corresponding functions in glibc, but they were called x... instead, so malloc became xmalloc, free became xfree, &amp;c.<p>At one time there was a lot of zombie processes lingering for a long-ish time until the parent terminated and the zombies were reaped by init. I didn&#x27;t bother to look at the implementation for xpopen, as I assumed it was just a call to popen. Turned out it wasnt; it was fork&#x2F;exec with a socketpair turned into a FILE* with fdopen. The child was not waited for in xpclose.<p>I think there can be times when the facade pattern makes sense. I think there can be times when importing the world makes sense. I think there can be times when the opposite is true too. I think talking about these things in an abstract way can miss the point of the very insanity in some concrete solutions out there.