X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-0.3 required=5.0 tests=AWL,BAYES_00,DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED,RCVD_NUMERIC_HELO,RP_MATCHES_RCVD,SPF_HELO_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: sourceware.org To: cygwin AT cygwin DOT com From: jojelino Subject: Re: compilation fails with Win32 API call Date: Tue, 20 Sep 2011 19:15:25 +0900 Lines: 33 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit User-Agent: Mozilla/5.0 (Windows NT 5.2; rv:8.0a2) Gecko/20110919 Thunderbird/8.0a2 In-Reply-To: X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , 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 2011-09-20 PM 6:12, Andrew Schulman wrote: > I'm trying to compile a program that calls the win32 function > SetThreadExecutionState, in kernel32.dll [1]. The link step fails: > > $ gcc -c nosleep.c > $ gcc -o nosleep nosleep.o -lkernel32 > nosleep.o:nosleep.c:(.text+0x1f): undefined reference to > `_SetThreadExecutionState' > nosleep.o:nosleep.c:(.text+0x5c): undefined reference to > `_SetThreadExecutionState' > collect2: ld returned 1 exit status > > According to the FAQ [2], I shouldn't even have to include -lkernel32. > > Can someone please tell me what I'm doing wrong? > > Thanks, > Andrew. > > [1] http://msdn.microsoft.com/en-us/library/aa373208(VS.85).aspx here you are. http://msdn.microsoft.com/en-us/library/aa383745.aspx > [2] > http://www.cygwin.com/faq/faq.programming.html#faq.programming.win32-api > > please define WINVER so that you can get definition what you want (gcc -E -DWINVER=0x500 - < EOF )|grep SetThreadExecution now you can see SetThreadExecutionState is defined -- 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