Is libc built by gcc?

[Brian Dessent]

Ray Hurst wrote:

> Ooops. A chicken and egg story.
> You're right. I'm using cygwin for windows XP and I assume gcc is using
> libc to build with. Running configure on glib-2.5 results in a not
> supported error.

No.  Cygwin does not use glibc at all, and glibc only works with Linux
(and the HURD.)  Cygwin provides its own libc implementation, based on
newlib for much of the stdio, string, and math parts.

Note that "libc" is a generic term, so saying "I assume gcc is using
libc" is meaningless; libc is the C library by definition, so gcc is
always using *some* libc.

Brian