# See compile.od for more explanation.
cat >$3 <<-EOF
	#!/bin/sh -e
	# Run the C/C++ compiler.
	# Assumes config variables (CFLAGS, etc) are already set.
	t="\$1" d="\$2" i="\$3"
	IFS="$NL"
	set -f
	\$CC -o "\$t" \\
	  -MMD -MF "\$d" \\
	  \$CPPFLAGS \$CFLAGS \$CXXFLAGS \$FLAGS_PCH \$xCFLAGS \$OPTFLAGS \\
	  -c "\$i"
EOF
chmod a+x "$3"
redo-stamp <$3