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 To: cygwin AT cygwin DOT com From: Christian Rudiger Subject: g++ libcygwin.a has an undefined reference Date: Tue, 18 May 2004 11:08:36 +0100 Lines: 99 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Complaints-To: usenet AT sea DOT gmane DOT org X-Gmane-NNTP-Posting-Host: z301.alex.wh.tu-darmstadt.de User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6) Gecko/20040113 Hello there, i think the following problem has to do with cygwin, cause libcygwin.a has an undefined reference. I get the error message when compiling my little testprogram. The Programm and complete compiler messages follow: ************************************************************* // reading a text file #include #include #include #include using namespace std; class tryit { char *FILE_POSTFIX;// = new "myfile.txt"; <- ausserhalb nicht möglich string posti; public: int main (int argc, char** argv) { FILE_POSTFIX = new char[10]; //"Nodes.txt"; <- erst allocieren dann zuweisen ! FILE_POSTFIX = "NODES.txt"; char *filename = FILE_POSTFIX; char *output; ifstream in (filename) ; while (in){ in >> output ; cout << output << endl; return 0; } } }; ************************************************************* g++ -v -Wall -Wno-deprecated tryme.cpp -o testthings.exe Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/specs Configured with: /GCC/gcc-3.3.1-3/configure --with-gcc --with-gnu-ld --with-gnu-as --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --libexecdir=/usr/sbin --mandir=/usr/share/man --infodir=/usr/share/info --enable-languages=c,ada,c++,f77,pascal,java,objc --enable-libgcj --enable-threads=posix --with-system-zlib --enable-nls --without-included-gettext --enable-interpreter --enable-sjlj-exceptions --disable-version-specific-runtime-libs --enable-shared --disable-win32-registry --enable-java-gc=boehm --disable-hash-synchronization --verbose --target=i686-pc-cygwin --host=i686-pc-cygwin --build=i686-pc-cygwin Thread model: posix gcc version 3.3.1 (cygming special) /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/cc1plus.exe -quiet -v -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=1 -D__CYGWIN32__ -D__CYGWIN__ -Dunix -D__unix__ -D__unix -idirafter /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/../../../../include/w32api -idirafter /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/../../../../i686-pc-cygwin/lib/../../include/w32api tryme.cpp -D__GNUG__=3 -quiet -dumpbase tryme.cpp -auxbase tryme -Wall -Wno-deprecated -version -o /cygdrive/d/TMP/cc55YaOO.s GNU C++ version 3.3.1 (cygming special) (i686-pc-cygwin) compiled by GNU C version 3.3.1 (cygming special). GGC heuristics: --param ggc-min-expand=47 --param ggc-min-heapsize=32700 ignoring nonexistent directory "/usr/local/include" ignoring nonexistent directory "/usr/i686-pc-cygwin/include" ignoring duplicate directory "/usr/i686-pc-cygwin/lib/../../include/w32api" #include "..." search starts here: #include <...> search starts here: /usr/include/c++/3.3.1 /usr/include/c++/3.3.1/i686-pc-cygwin /usr/include/c++/3.3.1/backward /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/include /usr/include /usr/include/w32api End of search list. /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/../../../../i686-pc-cygwin/bin/as.exe --traditional-format -o /cygdrive/d/TMP/ccbPwKZW.o /cygdrive/d/TMP/cc55YaOO.s /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/collect2.exe -Bdynamic --dll-search-prefix=cyg -o testthings.exe /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/../../../crt0.o /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/crtbegin.o -L/usr/lib/gcc-lib/i686-pc-cygwin/3.3.1 -L/usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/../../.. /cygdrive/d/TMP/ccbPwKZW.o -lstdc++ -lgcc -lcygwin -luser32 -lkernel32 -ladvapi32 -lshell32 -lgcc /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/crtend.o /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/../../../libcygwin.a(libcmain.o)(.text+0x7c): undefined reference to `_WinMain AT 16' collect2: ld returned 1 exit status make: *** [testthings.exe] Error 1 Compilation exited abnormally with code 2 at Tue May 18 11:05:17 Regards Christian Rudiger -- 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/