Repository : ssh://darcs.haskell.org//srv/darcs/ghc On branch : master
http://hackage.haskell.org/trac/ghc/changeset/2694bb74158bac7276cded2435bba8e889659f98 >--------------------------------------------------------------- commit 2694bb74158bac7276cded2435bba8e889659f98 Author: Ian Lynagh <[email protected]> Date: Fri Dec 2 16:55:28 2011 +0000 Use touchy rather than touch when building on Windows With Windows 7 in a vitrual box VM on OS X, some very odd things happen with dates and time stamps when SSHing into cygwin. e.g. here the "Change" time is in the past: $ date; touch foo; stat foo Fri Dec 2 16:58:07 GMTST 2011 File: `foo' Size: 0 Blocks: 0 IO Block: 65536 regular empty file Device: 540aba0bh/1409989131d Inode: 562949953592977 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 1000/ ian) Gid: ( 513/ None) Access: 2011-12-02 16:58:07.414457900 +0000 Modify: 2011-12-02 16:58:07.414457900 +0000 Change: 2011-12-02 16:58:03.495141800 +0000 Birth: 2011-12-02 16:57:57.731469900 +0000 And if we copy such a file, then the copy is older (as determined by the "Modify" time) than the original: $ date; touch foo; stat foo; cp foo bar; stat bar Fri Dec 2 16:59:10 GMTST 2011 File: `foo' Size: 0 Blocks: 0 IO Block: 65536 regular empty file Device: 540aba0bh/1409989131d Inode: 1407374883725128 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 1000/ ian) Gid: ( 513/ None) Access: 2011-12-02 16:59:10.118457900 +0000 Modify: 2011-12-02 16:59:10.118457900 +0000 Change: 2011-12-02 16:59:06.189477700 +0000 Birth: 2011-12-02 16:57:57.731469900 +0000 File: `bar' Size: 0 Blocks: 0 IO Block: 65536 regular empty file Device: 540aba0bh/1409989131d Inode: 281474976882512 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 1000/ ian) Gid: ( 513/ None) Access: 2011-12-02 16:59:06.394555800 +0000 Modify: 2011-12-02 16:59:06.394555800 +0000 Change: 2011-12-02 16:59:06.395532400 +0000 Birth: 2011-12-02 16:58:40.921899600 +0000 This means that make thinks that things are out of date when it shouldn't, so reinvokes itself repeatedly until the MAKE_RESTARTS infinite-recursion test triggers. The touchy program, like most other programs, creates files with both Modify and Change in the past, which is still a little odd, but is consistent, so doesn't break make. ghc.mk | 9 +++++---- libffi/ghc.mk | 12 ++++++------ mk/config.mk.in | 8 ++++++++ rts/ghc.mk | 4 ++-- rules/build-dependencies.mk | 8 ++++---- rules/build-prog.mk | 4 ++-- utils/ghc-cabal/ghc.mk | 4 ++-- utils/touchy/ghc.mk | 9 +++++---- 8 files changed, 34 insertions(+), 24 deletions(-) Diff suppressed because of size. To see it, use: git show 2694bb74158bac7276cded2435bba8e889659f98 _______________________________________________ Cvs-ghc mailing list [email protected] http://www.haskell.org/mailman/listinfo/cvs-ghc
