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Date:	Sat, 30 Jun 2012 09:54:00 +0200
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To:	cygwin AT cygwin DOT com
Subject:	Re: Why Cygwin tries to pull in winsock2.h when compiling a Linux application?
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On 6/30/2012 9:41 AM, Patrick L wrote:
> Hi, I am using Cygwin 1.7.11 i686 on Windows 7 PC. I am trying to compile a Linux C++ application on Cygwin.
>
> When I use the ./configure command, Cygwin shows the following error messages:
>
> checking winsock2.h usability... no
> checking winsock2.h presence... yes

If this program is looking for winsock2.h than it allows to be
compiled on windows.
It is not cygwin requesting it, it is the configure itself

> configure: WARNING: winsock2.h: present but cannot be compiled
> configure: WARNING: winsock2.h:     check for missing prerequisite headers?
> configure: WARNING: winsock2.h: see the Autoconf documentation
> configure: WARNING: winsock2.h:     section "Present But Cannot Be Compiled"
> configure: WARNING: winsock2.h: proceeding with the preprocessor's result
> configure: WARNING: winsock2.h: in the future, the compiler will take precedence
> configure: WARNING:     ## ------------------------------------------ ##
> configure: WARNING:     ## Report this to xxx AT xxx DOT xxx ##
> configure: WARNING:     ## ------------------------------------------ ##
> checking for winsock2.h... yes
> checking ws2tcpip.h usability... no
> checking ws2tcpip.h presence... yes
> configure: WARNING: ws2tcpip.h: present but cannot be compiled
> configure: WARNING: ws2tcpip.h:     check for missing prerequisite headers?
> configure: WARNING: ws2tcpip.h: see the Autoconf documentation
> configure: WARNING: ws2tcpip.h:     section "Present But Cannot Be Compiled"
> configure: WARNING: ws2tcpip.h: proceeding with the preprocessor's result
> configure: WARNING: ws2tcpip.h: in the future, the compiler will take precedence
> configure: WARNING:     ## ------------------------------------------ ##
> configure: WARNING:     ## Report this to xxx AT xxx DOT xxx ##
> configure: WARNING:     ## ------------------------------------------ ##
> checking for ws2tcpip.h... yes
>
> winsock2.h and ws2tcpip.h are Windows header files for Windows network/socket programming. Why Cygwin tries to pull in Windows header files when I am compiling a Linux C++ application? How can I fix this issue?
>
> Thanks.

Which program ?






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