#!/bin/sh
#
# Remove invariant .h files from Makefile dependency lists
#
for f in $@; do
	perl -pi -e '
		if(/^#START_DEPEND/) { $dependencies = 1; }
		if(!$dependencies) { next; }
		if(/^([a-zA-Z_0-9]+)\.o\s*:\s+\1\.c\s*$/) {
			$_ = "";
		}
		if(/^([a-zA-Z_0-9]+)\.o\s*:\s+\$\((ASTROTOOLS|FTCL|LIBFITS|SDSSMATH|DERVISH|TCLX?)_DIR\).*\.h\s*$/){
			$_ = "";
		}
	' $f
done