X-Recipient:	archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status:	No, hits=-2.0 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,RCVD_IN_DNSWL_LOW
X-Spam-Check-By:	sourceware.org
Message-ID:	<4C981AB8.8020602@cwilson.fastmail.fm>
Date:	Mon, 20 Sep 2010 22:38:48 -0400
From:	Charles Wilson <cygwin AT cwilson DOT fastmail DOT fm>
User-Agent:	Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.23) Gecko/20090812 Thunderbird/2.0.0.23 Mnenhy/0.7.6.666
MIME-Version:	1.0
To:	cygwin AT cygwin DOT com
Subject:	Re: missing pthread.h in building 64-bit aaplications
References:	<29764972 DOT post AT talk DOT nabble DOT com> <20100921021846 DOT GB13592 AT ednor DOT casa DOT cgf DOT cx>
In-Reply-To:	<20100921021846.GB13592@ednor.casa.cgf.cx>
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com

On 9/20/2010 10:18 PM, Christopher Faylor wrote:
> On Mon, Sep 20, 2010 at 05:01:52PM -0700, kenny AT ca wrote:
>> I used "x86_64-w64-mingw32-gcc ...." to build the application, but failed.
>> The output tells missing pthread.h. pthread.h is included in one of my
>> source files.
>>
>> I located the file, one in C:\cygwin\usr\include, the other
>> C:\cygwin\usr\x86_64-w64-mingw32\sys-root\mingw\include.
>>
>> I tried using -I to tell gcc to include pthread.h, but failed. why? 
> 
> This is a MinGW compiler.  It doesn't support pthread.  Any threading
> support would be with standard Windows calls.

I don't think that's accurate.  The x86_64-mingw64 cross compiler
package set includes a win32-pthreads package, including pthread.h.
It's necessary for gcc's OMP support via libgomp.

That's why the OP was able to find one copy of pthread.h in
C:\cygwin\usr\x86_64-w64-mingw32\sys-root\mingw\include.  The real
question is why the (cross)compiler couldn't locate it; given the whole
/mingw prefix and sysroot support, it really should be able to.

--
Chuck

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -