llvm dev - Oct 2011 - [LLVMdev] LLVM build is failed giving Path.inc:714: error: ‘unlink’ was not declared in this scope

Hello All,

I am getting following error on Ubuntu. My gcc is gcc version 4.4.5. Please let
me know if you have any comments/suggestions.

In file included from /home/janarbek/Work/llvm/llvm/lib/Support/Path.cpp:299:
/home/janarbek/Work/llvm/llvm/lib/Support/Unix/Path.inc: In member function
‘bool llvm::sys::Path::eraseFromDisk(bool, std::string*) const’:
/home/janarbek/Work/llvm/llvm/lib/Support/Unix/Path.inc:714: error: ‘unlink’ was
not declared in this scope
make[1]: ***
[/home/janarbek/Work/llvm/llvm_obj/lib/Support/Release+Asserts/Path.o] Error 1
make[1]: Leaving directory `/home/janarbek/Work/llvm/llvm_obj/lib/Support'
make: *** [all] Error 1
janarbek at ubuntu:~/Work/llvm/llvm_obj$ vi ../llvm/lib/Support/Path.cpp 


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On Mon, Oct 24, 2011 at 4:27 PM, janarbek <canarbekmatay at yahoo.com>
wrote:
>
> Hello All,
>
> I am getting following error on Ubuntu. My gcc is gcc version 4.4.5. Please
let me know if you have any comments/suggestions.
>
> In file included from
/home/janarbek/Work/llvm/llvm/lib/Support/Path.cpp:299:
> /home/janarbek/Work/llvm/llvm/lib/Support/Unix/Path.inc: In member function
‘bool llvm::sys::Path::eraseFromDisk(bool, std::string*) const’:
> /home/janarbek/Work/llvm/llvm/lib/Support/Unix/Path.inc:714: error:
‘unlink’ was not declared in this scope
> make[1]: ***
[/home/janarbek/Work/llvm/llvm_obj/lib/Support/Release+Asserts/Path.o] Error 1
> make[1]: Leaving directory
`/home/janarbek/Work/llvm/llvm_obj/lib/Support'
> make: *** [all] Error 1
> janarbek at ubuntu:~/Work/llvm/llvm_obj$ vi ../llvm/lib/Support/Path.cpp
Does the attached patch help?

Does this issue show up with 3.0 RC1?  (http://llvm.org/pre-releases/3.0/)

-Eli
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Index: lib/Support/Unix/Path.inc
==================================================================---
lib/Support/Unix/Path.inc	(revision 142876)
+++ lib/Support/Unix/Path.inc	(working copy)
@@ -51,7 +51,9 @@
 #  include <ndir.h>
 # endif
 #endif
-
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 #if HAVE_DLFCN_H
 #include <dlfcn.h>
 #endif

I am not sure if I applied correctly.I did following and it seems failed.

janarbek at ubuntu:~/Work/llvm$ patch <unistd.txt 
patching file Path.inc
Hunk #1 FAILED at 51.
1 out of 1 hunk FAILED -- saving rejects to file Path.inc.rej



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==========================================
--- On Mon, 10/24/11, Eli Friedman <eli.friedman at gmail.com> wrote:

From: Eli Friedman <eli.friedman at gmail.com>
Subject: Re: [LLVMdev] LLVM build is failed giving Path.inc:714: error: ‘unlink’
was not declared in this scope
To: "janarbek" <canarbekmatay at yahoo.com>
Cc: "LLVM Developers Mailing List" <llvmdev at cs.uiuc.edu>
Date: Monday, October 24, 2011, 4:36 PM

On Mon, Oct 24, 2011 at 4:27 PM, janarbek <canarbekmatay at yahoo.com>
wrote:
>
> Hello All,
>
> I am getting following error on Ubuntu. My gcc is gcc version 4.4.5. Please
let me know if you have any comments/suggestions.
>
> In file included from
/home/janarbek/Work/llvm/llvm/lib/Support/Path.cpp:299:
> /home/janarbek/Work/llvm/llvm/lib/Support/Unix/Path.inc: In member function
‘bool llvm::sys::Path::eraseFromDisk(bool, std::string*) const’:
> /home/janarbek/Work/llvm/llvm/lib/Support/Unix/Path.inc:714: error:
‘unlink’ was not declared in this scope
> make[1]: ***
[/home/janarbek/Work/llvm/llvm_obj/lib/Support/Release+Asserts/Path.o] Error 1
> make[1]: Leaving directory
`/home/janarbek/Work/llvm/llvm_obj/lib/Support'
> make: *** [all] Error 1
> janarbek at ubuntu:~/Work/llvm/llvm_obj$ vi ../llvm/lib/Support/Path.cpp
Does the attached patch help?

Does this issue show up with 3.0 RC1?  (http://llvm.org/pre-releases/3.0/)

-Eli
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