Looks like the replacement is scm_report_out_of_memory()
-Dale
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From: dsmich@roadrunner.com
To: "guile-devel@gnu.org"
Cc:
Sent: Sunday January 19 2020 5:48:10PM
Subject: MIssing scm_memory_error
In Guile 3.0 (and probably earlier) scm_memory_error has gone away, with no mention of a replacement in NEWS.-Dale