/^$/n
x
/^$/bS
x
/\\$/{H;d;}
{H;s/.*//;x;}
bM
:S
x
/\\$/{h;d;}
{h;s/.*//;x;}
:M
s/\(\n\)	/\1 /g
/^	/d
/^[ 	]*[\#]/d
/^VPATH *=/d
s/^srcdir *=.*/srcdir = ./
s/^top_srcdir *=.*/top_srcdir = ./
/[:=]/!d
/^\./d
s/:.*/:/
/:$/s/ /  /g
/:$/s/  / /g
/^.*[=]/!s%$% ; (cd $(BUILD) \&\& $(ISNOTSRCDIR) \&\& $(MAKE) "$\@") || exit ; $(MAKE) done "RULE=$\@"%