#5848: Calling ghc without -o overwrites symbolic links
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Reporter: Ptival | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.0.3 | Keywords: linker symbolic link overwrite
Os: Linux | Architecture: x86_64 (amd64)
Failure: Other | Testcase:
Blockedby: | Blocking:
Related: |
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This might not be a bug (might even be a feature...) but I find it
strange:
When you call ghc name.hs, after compiling your .hs .o:
- if you don't have a file "name", it creates the executable "name"
- if you have a folder or a file called "name", it does nothing
- if you have a symbolic link called "name", it is erased and replaced by
the executable "name"
This last one behavior is (not entirely) surprising. It sure is a good
idea to provide a -o, but while dirty hacking a test.hs while I had a
symlink to some test directory, it happened to me. Maybe for some reason
we want this to happen.
Steps to reproduce:
{{{
$ echo "FOO" > linked
$ ln -s linked link
$ echo "main = return ()" > link.hs
$ ls -lh link
lrwxrwxrwx 1 varobert 21134 6 Feb 6 14:25 link -> linked
$ cat link
FOO
$ ghc link.hs
[1 of 1] Compiling Main ( link.hs, link.o )
Linking link ...
$ ls -lh link
-rwxr-xr-x 1 varobert 21134 930K Feb 6 14:26 link
}}}
I'm not cat-ing link again but you get it.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5848>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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