Unable to create configure file with automake

[marcschumacher]

Describe the bug
I am trying to generate the configure file as described in INSTALL, but I get the error

configure.ac:6: error: possibly undefined macro: AM_INIT_AUTOMAKE
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.

After running ./configure which anyways got created, I get the following error:

❯ ./configure
./configure: line 2398: syntax error near unexpected token `-Wall'
./configure: line 2398: `AM_INIT_AUTOMAKE(-Wall -Wno-portability)'

To Reproduce

1. Download the repo to a local folder
2. Move into the folder using cd
3. Run autoconf
4. Run ./configure

Expected behavior
The configure file should be generated without errors. The generated ./configure file should not create an error.

Operating system and platform (please complete the following information):

• MacOS Sonoma 14.4.1 (23E224)
• Autoconf 2.72

Additional context
I found this article on Stackoverflow stating that the configuration in configure.am should not contain both AC_INIT and AM_INIT_AUTOMAKE. Is that possibly something to fix?