Subject: bug#27782: mmap for guile 2.2.2

From: Matt Wette <[email-masked]>
Date: Sat, 28 Oct 2017 10:09:51 -0700

I located GC_exclude_static_roots() call for the collector.

Now mmap/search will run allocate a bytevector as in the previously provided patch.
And mmap will call mmap/search and then apply GC_exclude_static_roots() to the mmap'd region.