[PATCH] Reorganize inclusions in regex

[Ulrich Drepper]

Bonzini wrote:
> The attached patch moves to regex_internal.h the inclusions that are common
> to all the regex C source files, and ensures that regex.h can be included
> when only sys/types.h has been included.

Don't send me patches for your version of the code.  The patch doesn't
apply and even after correcting it the compilation fails.

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