[pacman-dev] configure syntax error even after issuing autogen.sh

[Saul Tigh]

Dear pacman developers,

First time poster here, so please be gentle. I've been trying to compile
pacman from git and I constantly run into an issue. First I issue
./autogen.sh and then ./configure but this error always pops up:

./configure: line 14968: syntax error near unexpected token `$file_version,'
./configure: line 14968: ` AX_COMPARE_VERSION($file_version, ge, 5.38,
with_file_seccomp=yes)'

What am I doing wrong?