[tz] [YBA] TLD make using mawk causes malloc failure
abbotti at mev.co.uk
Wed Jan 19 14:00:22 UTC 2022
On 19/01/2022 10:12, Jonathan Ben Avraham via tz wrote:
> Dear colleagues,
> I noticed that on all tz versions up to 2021e running make in the
> top-level directory results in a malloc failure on Debian 10 which uses
> the mawk alternate for awk:
> cc -DTZDIR='"/usr/share/zoneinfo"' -c -o difftime.o difftime.c
> rm -f libtz.a
> ar -rc libtz.a localtime.o asctime.o difftime.o strftime.o
> : libtz.a
> awk -v DATAFORM=`expr main.zi : '\(.*\).zi'` -f ziguard.awk \
> africa antarctica asia australasia europe northamerica
> southamerica etcetera factory backward >main.zi.out
> malloc(): unsorted double linked list corrupted
> make: *** [Makefile:612: main.zi] Error 134
FWIW, in Debian 11 they switched to a different development stream of
mawk. Debian 10 was using the Mark Brennan's mawk-1.3.3 with Debian
patches (currently mawk-1.3.3-17, Debian maintainer Steve Langasek).
Debian 11 uses Thomas Dickey's mawk-1.3.4 plus snapshots (currently
mawk-188.8.131.5200120, Debian package version mawk-184.108.40.20600120-2,
Debian maintainer Boyuan Yang).
Debian's mawk-220.127.116.1100120-2 doesn't have the problem.
The home page for Thomas Dickey's mawk 1.3.4 is:
He maintains it in RCS, but there are snapshots on GitHub at:
I used git bisect (reversing the usual meanings of "good" and "bad") to
determine that the problem was fixed by the 20100418 snapshot, tagged
The main changes for this snapshot were to the files "array.c",
"array.w" ("array.c" is "untangle"d from the "Noweb" source in
"array.w"), and "types.h".
> This can be corrected by installing gawk and running
> update-alternatives --config awk
> to select gawk as the awk alternate. I verified that the make completes
> without error using either GNU Awk 4.1.4, or GNU Awk 4.2.1.
You could also build tz with
(or edit the Makefile to change the AWK variable).
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