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+2022-02-13 Paul Vojta <vojta@math.berkeley.edu>
+
+ * dvi-init.c (make_backup_fp): call new try_dup, and existing
+ try_fdopen, before fseek.
+ * util.c (try_dup): define new fn.
+ * util.h (try_dup): declare it.
+ This resolves xdvi crashing under MacOS after hitting `R' in some
+ situations (the preceding change did as well, in a clunkier way).
+ https://tug.org/pipermail/tlbuild/2022q1/005140.html ff.
+
2022-02-01 John Hawkinson <jhawk@alum.mit.edu>
* dvi-init.c (make_backup_fp): check returns from fseeks,