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Date:	Tue, 21 Sep 2010 10:40:35 -0700 (PDT)
From:	"kenny AT ca" <heqing DOT gugle AT gmail DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: missing pthread.h in building 64-bit aaplications
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I guess I found the reason why x86_64-w64-mingw32-gcc can't locate pthread.h.
It's because a macro 
     #if HAVE_PTHREAD
    #include <pthread.h>
is used in source files, but the macro is not defined by mingw, about which
I found it existiing before according to google search. I re-built it after
the macro was commentted, and pthread.h was in. How is your thinking?

Another, I added -v and dependency output showed
usr\x86_64-w64-mingw32\sys-root\mingw\include was in. So the search path
mechanism is not a problem.



JonY-6 wrote:
> 
> On 9/21/2010 08:01, kenny AT ca wrote:
>>
>> Hello All,
>>
>> Goal: Building 64-bit application on Cygwin
>> OS: 64-bit Windows 7
>>
>> 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?
> 
> Hi,
> 
> Can you show us the command line used to compile? Add a "-v" as well so 
> we can see where gcc searched for the headers.
> 
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