Redundant re-link when ".exe" omitted
(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.
Trac metadata
Trac field | Value |
---|---|
Version | 6.4.2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture | Unknown |