X-Spam-Flag: YES X-Spam-Check-By: sourceware.org Message-ID: <008f01c68872$a244e070$ab01a8c0@loiscxf> From: "cxf" To: Subject: How to use openssl in cygwin Date: Mon, 5 Jun 2006 15:35:35 +0800 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="gb2312"; reply-type=original Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm 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 Note-from-DJ: This may be spam Hi,all: I installed the Cygwin which is the Full version. I write the Program as the following: #include int main() { EVP_MD_CTX md_ctx; unsigned int result_size; int rv; rv = EVP_SignInit(&md_ctx, EVP_sha1()); return rv; } It is very simple,then I compile the program using the Cygwin(the file name is example.c) gcc -c example.c gcc -lcrypto -o example example.o but the gcc give out the error: undefined reference to '_EVP_sha1' undefined reference to '_EVP_DigestInit' I have checked that the libcrypto.a is in the right way. I doubt whether the libcrypto.a have the function: EVP_sha1 and EVP_DigestInit. (I compile the example.c in Linux,It is OK!) -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/