Subject: Re 47429:allocating JIT code buffer failed: Permission denied

From: Jeffrey Walton <[email-masked]>
Date: Fri, 26 Mar 2021 22:39:19 -0400

The GUILE_ENABLE_JIT m4 macro should _not_enable JIT on the Apple
silicon. That's going to take a real port.

This may help in detecting the M1 as long as build==host.

    apple_silicon=`sysctl machdep.cpu.brand_string 2>/dev/null | grep
-i -c "Apple M1"`

If a cross-compile is happening, then TARGET_OSX and MAP_JIT macros may help.

Jeff