I'm using x86_64-w64-mingw32 in cygwin as 64-bit compiler to build 64-bit applications. Functions like dlopen(), dlerror(), etc., are used in codes. I got errors when linking *.o to *.dll as follows.
echo Linking shared library myxx.dll x86_64-w64-mingw32-g++ -D(omitted) -I(omitted) -minline-all-stringops -Wall -fno-strict-aliasing -Wunused -Wno-unused-function -Wnon-virtual-dtor -msse2 - mfpmath=sse -m64 -shared xx1.o ...(omit others) -ldl -lstdc++ -Wl, -m64 -lpthread -o myxx.dll /usr/lib/gcc/x86_64-w64-mingw32/4.5.1/../../../../x86_64-w64-mingw32/bin/ld: can not find -ldl collect2: ld returned 1 exit status developement environment: about environment: OS: 64-bit Windows7, Cygwin 1.7 $ uname -srv CYGWIN_NT-6.1-WOW64 1.7.7(0.230/5/3) 2010-08-31 09:58 $ echo $PATH /usr/local/bin:/usr/bin:/bin:.:/usr/x86_64-w64-mingw32/sys-root/mingw/include:/u sr/include:/usr/lib/lapack ... libdl.a is in c:\cygwin\lib\, but I did not see it in C:\cygwin\usr\x86_64-w64-mingw32\. In fact, I found there is only a file libiberty.a in C:\cygwin\usr\x86_64-w64-mingw32\lib64. I think I may not use x86_64-w64-mingw32-gcc correctly. Please help beat the error. Thank you -- View this message in context: http://old.nabble.com/x86_64-w64-mingw32-g%2B%2B-can%27t-find--ldl-tp29938897p29938897.html Sent from the Cygwin list mailing list archive at Nabble.com. -- 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
