gawk core dumped on too many input values

[Ed Morton]

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: cygwin
Compiler: gcc
Compilation CFLAGS: -ggdb -O2 -pipe -Wall -Werror=format-security 
-Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong 
--param=ssp-buffer-size=4 
-fdebug-prefix-map=/cygdrive/d/a/scallywag/gawk/gawk-5.2.2-1.x86_64/build=/usr/src/debug/gawk-5.2.2-1 
-fdebug-prefix-map=/cygdrive/d/a/scallywag/gawk/gawk-5.2.2-1.x86_64/src/gawk-5.2.2=/usr/src/debug/gawk-5.2.2-1 
-DNDEBUG
uname output: CYGWIN_NT-10.0-22621 TournaMart_2023 3.4.8-1.x86_64 
2023-08-17 17:02 UTC x86_64 Cygwin
Machine Type: x86_64-pc-cygwin

Gawk Version: 5.2.2

Attestation 1:
        I have read 
https://www.gnu.org/software/gawk/manual/html_node/Bugs.html.
        Yes

Attestation 2:
        I have not modified the sources before building gawk.
        True

Description:
        I was trying to test something related to ARG_MAX when I ran the
        awk script below and it core dumped instead of reporting an error
        and exiting gracefully. In case it's useful getconf ARG_MAX outputs
        32000.

Repeat-By:
        $ LC_ALL=C awk 'BEGIN{print ARGC}' $(seq 1000000)
        Segmentation fault (core dumped)