In /usr/bin/pdal-config line 3:
exec_prefix=/usr/bin
^---------^ SC2034: exec_prefix appears unused. Verify use (or export if used externally).


In /usr/bin/pdal-config line 19:
	exit $1
             ^-- SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
	exit "$1"

For more information:
  https://www.shellcheck.net/wiki/SC2034 -- exec_prefix appears unused. Verif...
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...