diff options
| author | Ian Lynagh <igloo@earth.li> | 2011-12-02 16:55:28 +0000 |
|---|---|---|
| committer | Ian Lynagh <igloo@earth.li> | 2011-12-02 16:55:28 +0000 |
| commit | 2694bb74158bac7276cded2435bba8e889659f98 (patch) | |
| tree | 67496c4d879a3589bda9329d7b63e7dcd2a979be /utils | |
| parent | b2d3c5576050a69c26a546ba10726618a72d4b67 (diff) | |
| download | haskell-2694bb74158bac7276cded2435bba8e889659f98.tar.gz | |
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This means that make thinks that things are out of date when it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.
Diffstat (limited to 'utils')
| -rw-r--r-- | utils/ghc-cabal/ghc.mk | 4 | ||||
| -rw-r--r-- | utils/touchy/ghc.mk | 9 |
2 files changed, 7 insertions, 6 deletions
diff --git a/utils/ghc-cabal/ghc.mk b/utils/ghc-cabal/ghc.mk index 9af611c8b9..20d05704d2 100644 --- a/utils/ghc-cabal/ghc.mk +++ b/utils/ghc-cabal/ghc.mk @@ -25,7 +25,7 @@ $(GHC_CABAL_DIR)/dist/build/tmp/ghc-cabal$(exeext): $(wildcard libraries/Cabal/C $(GHC_CABAL_DIR)/dist/build/tmp/ghc-cabal$(exeext): $(wildcard libraries/Cabal/Cabal/Distribution/*/*.hs) $(GHC_CABAL_DIR)/dist/build/tmp/ghc-cabal$(exeext): $(wildcard libraries/Cabal/Cabal/Distribution/*.hs) -$(GHC_CABAL_DIR)/dist/build/tmp/ghc-cabal$(exeext): $(GHC_CABAL_DIR)/Main.hs | $$(dir $$@)/. bootstrapping/. +$(GHC_CABAL_DIR)/dist/build/tmp/ghc-cabal$(exeext): $(GHC_CABAL_DIR)/Main.hs $(TOUCH_DEP) | $$(dir $$@)/. bootstrapping/. "$(GHC)" $(SRC_HC_OPTS) --make $(GHC_CABAL_DIR)/Main.hs -o $@ \ -no-user-package-conf \ -Wall $(WERROR) \ @@ -36,7 +36,7 @@ $(GHC_CABAL_DIR)/dist/build/tmp/ghc-cabal$(exeext): $(GHC_CABAL_DIR)/Main.hs | $ -ilibraries/filepath \ -ilibraries/hpc \ $(utils/ghc-cabal_dist_EXTRA_HC_OPTS) - touch $@ + "$(TOUCH_CMD)" $@ # touch is required, because otherwise if mkdirhier is newer, we # repeatedly rebuild ghc-cabal. diff --git a/utils/touchy/ghc.mk b/utils/touchy/ghc.mk index fc9c845c8d..458f80e5ed 100644 --- a/utils/touchy/ghc.mk +++ b/utils/touchy/ghc.mk @@ -10,8 +10,9 @@ # # ----------------------------------------------------------------------------- -utils/touchy_dist_C_SRCS = touchy.c -utils/touchy_dist_PROG = $(GHC_TOUCHY_PGM) -utils/touchy_dist_TOPDIR = YES -utils/touchy_dist_INSTALL = YES +utils/touchy_dist_C_SRCS = touchy.c +utils/touchy_dist_PROG = $(GHC_TOUCHY_PGM) +utils/touchy_dist_TOPDIR = YES +utils/touchy_dist_INSTALL = YES +utils/touchy_dist_INSTALL_INPLACE = YES $(eval $(call build-prog,utils/touchy,dist,0)) |