Compile error (apache2 vs httpd)

[LawsHosting]

I doubt this is normal. Why is 7.2.26 and 7.3.13 looking for /etc/apache2/* directories? It does exist (containing a conf-available directory), but this hasn't happened before.

Installing php...
Installing PHP SAPI module: apache2handler
/usr/share/apache2/build/instdso.sh SH_LIBTOOL='/var/www/build/libtool' libphp7.la /usr/lib/apache2/modules
/var/www/build/libtool --mode=install install libphp7.la /usr/lib/apache2/modules/
libtool: install: install .libs/libphp7.so /usr/lib/apache2/modules/libphp7.so
libtool: install: install .libs/libphp7.lai /usr/lib/apache2/modules/libphp7.la
libtool: warning: remember to run 'libtool --finish /usr/local/directadmin/custombuild/php-7.3.13/libs'
chmod 644 /usr/lib/apache2/modules/libphp7.so
apxs:Error: Config file /etc/apache2/mods-available not found.
Makefile:174: recipe for target 'install-sapi' failed
make: *** [install-sapi] Error 1