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 |