This patch fixes EBCDIC conversion for Apache 1.3.9 on platforms that

support mmap.  Currently, ap_checkconv() is called only if mmap is not
supported, or if mmap fails.  This results in mangled .gif's and .jpg's
etc. because EBCDIC-ASCII conversion is done by default when
CHARSET_EBCDIC is defined.

Note: I suspect all this will radically change when EBCDIC support is
done in an IOL. However, I think it is valuable to put this patch into
Apache 2.0 as a reminder since it is just a code move rather than new code.

Submitted by:	Greg Ames
Reviewed by:	Bill Stoddard


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@84016 13f79535-47bb-0310-9956-ffa450edef68