- files_and_dependencies | while read f deps; do
- if test -f $f && is_out_of_date "$f" $deps; then
- echo Touching "$f"...
- touch $f
- if is_out_of_date "$f" $deps; then
- # Hmm, it may have got the same timestamp as one of
- # its touched dependencies. Wait a second and retry
- sleep 1
- touch $f
- fi
- fi
- done
+ rm -f Makefile.$$
+ echo 'all: \' > Makefile.$$
+ files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
+ echo '; @true' >> Makefile.$$
+ files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
+ files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
+ echo ':' >> Makefile.$$
+ echo ' @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
+ echo ' echo Touching $@...; \' >> Makefile.$$
+ echo ' echo Touching $@... 1>&2; \' >> Makefile.$$
+ echo ' touch $@' >> Makefile.$$
+ files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
+ while ${MAKE-make} -s -f Makefile.$$ all | grep . > /dev/null; do
+ sleep 1
+ done 2>&1
+ rm -f Makefile.$$