Bug#101637: Cannot resume after failure in binary-libstdcxx.mk

[Matthias Klose <doko@cs.tu-berlin.de>]

Jeff Bailey writes:
 > Package: gcc-3.0
 > Version: 3.0.ds8-0pre010613
 > 
 > While porting to the Hurd, I came across a bug in binary-libstdcxx.mk.
 > I corrected the bug and reran `debian/rules binary-arch'.  However,
 > because it had *already* moved some files around, it's not capable of
 > resuming where it was after a failure.
 > 
 > (These fixes will be sent in a seperate bug report...)
 > 
 > I suspect the best fix is to 'rm 07-install-stamp' at the beginning of
 > each new section where files are moved around, and then touch it again
 > when everything is in a resumable state again.  The install step could
 > then still skip the succesful sections that had been copied correctly.

I think this does not work, because the install-stamp then is newer
than the binary stamp. What about

binary-foo-stamp: install-stamp
	mv install-stamp install-stamp-tmp

	[... make binary-foo]

	trap '' 1 3 15; \	# which other signals?
	  touch binary-foo-stamp; \
	  mv install-stamp-tmp install-stamp