#8144: Interface hashes include time stamp of dependent files (UsageFile mtime) -------------------------------------+------------------------------------- Reporter: nh2 | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: 7.6.3 Resolution: | Keywords: testcase Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by nomeata): * priority: high => normal Comment: Ah, wait: This is only waiting for a test case, right? So then why do I still see this {{{ ./usr/lib/ghc/base-4.7.0.2/System/Info.hi --- /dev/fd/63 2015-05-14 10:15:20.278404032 +0200 +++ /dev/fd/62 2015-05-14 10:15:20.278404032 +0200 @@ -5,7 +5,7 @@ Way: Wanted [], got [] interface base:System.Info 7084 - interface hash: 038b3a2a32cd43c6a82b096e3ef5c665 + interface hash: 4ff1db7940716ca0e906d3f6b7af1166 ABI hash: 67cae6f933216805d975ee28cd5ea72d export-list hash: 89e8b7a3bfc33bdb505eb586ca9fe64e orphan hash: 693e9af84d3dfcc71e640e005bdc5e2e @@ -64,7 +64,7 @@ divMod e11d60a38cd49de2f6058cc39227517a import safe Prelude 74043f272d60acec1777d3461cfe5ef4 exports: be888345b248b32ace8f805dd49f3def -addDependentFile "/build/ghc-LIQtDg/ghc-7.8.4/includes/ghcplatform.h" +addDependentFile "/build/ghc-Na5lKv/ghc-7.8.4/includes/ghcplatform.h" addDependentFile "libraries/base/dist- install/build/autogen/cabal_macros.h" addDependentFile "/usr/include/stdc-predef.h" f85496685a82c42827c38c1ecec0b5fd }}} Looks like the filename is included in the hash then, because the files are identical in both builds... -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8144#comment:33 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler