Opened 8 years ago

Closed 8 years ago

Last modified 6 years ago

#790 closed bug (fixed)

Redundant re-link when ".exe" omitted

Reported by: simonpj Owned by:
Priority: normal Milestone:
Component: Compiler Version: 6.4.2
Keywords: Cc:
Operating System: Windows Architecture: Unknown/Multiple
Type of failure: Difficulty: Unknown
Test Case: Blocked By:
Blocking: Related Tickets:

Description

(Reported by Neil Mitchell.)

GHC 6.4.2 doesn't normally relink when invoked with --make if the
target file has not changed. This is very very useful!

Create a Main.hs, and compile with ghc --make twice, first time it
compiles, second time it does nothing.

Compile with ghc --make -o file.exe twice, first time it compiles,
second time it does nothing.

Compile with ghc --make -o file (note the absence of .exe). First time
it compiles as file.exe, second time and every time after it relinks.
This is the bug. On Windows -o file means -o file.exe, and I guess the
file "file" rather than "file.exe" is checked if it is up to date or
not.

Change History (2)

comment:1 Changed 8 years ago by simonmar

  • Resolution set to fixed
  • Status changed from new to closed

Already fixed in HEAD, I don't think this one is critical enough to be worth fixing in 6.4.3.

comment:2 Changed 6 years ago by simonmar

  • Architecture changed from Unknown to Unknown/Multiple
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