Gnuastro's source tarball was recently built with the new Autoconf 2.70.
After uploading it to Debian, we noticed that Gnuastro's build is
crashing just after the './configure' script finishes and the error is
from calling Automake (exact error in P.S.), the full log of this Debian
auto-build is available here:

https://buildd.debian.org/status/fetch.php?pkg=gnuastro&arch=sh4&ver=0.13.93-1&stamp=1610475647&raw=0

However, the build has successfully completed on all other systems:

https://buildd.debian.org/status/package.php?p=gnuastro&suite=experimental

After, the crash, Automake complains with an error in Autoconf, but
since the original crash is in Automake I thought its best to consult
you about this crash first.

Could you please guide/help me in finding if this is a problem in
Gnuastro's packaging, Automake or Autoconf?

Thanks a lot,
Mohammad

P.S.

make[1]: Entering directory '/<<PKGBUILDDIR>>'
  cd . && /bin/bash /<<PKGBUILDDIR>>/bootstrapped/build-aux/missing
automake-1.16 --gnu
free(): invalid pointer
qemu: uncaught target signal 6 (Aborted) - core dumped
Aborted
automake-1.16: error: autoconf failed with exit status: 134
make[1]: *** [Makefile:2091: Makefile.in] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'