Hi Sebastian, On Sat, Sep 28, 2002 at 06:20:36PM -0700, Sebastian Huber wrote: > how can I write a check for a library which contain only functions and classes > in a namespace? > The easiest function is 'std::string TACO::errorString( long e)'. > > I tried this: > > AC_CHECK_LIB(TACOExtensions,errorString,found=yes,found=no,) > > but it resulted in: > > /home/huber/taco/frmII/tacodevel/build/client/io/configure:2971: undefined > reference to `errorString'
AC_CHECK_LIB uses a test program that assumes that the function you're looking for has a C linkage. Unless your C++ function has a C linkage (e.g. via the extern "C" linkage directive), AC_CHECK_LIB will fail. The test employed by AC_CHECK_LIB generally isn't suitable for methods in C++ classes, C++ templates, etc due to the name mangling performed by the compiler. AFAICT, you'll have to write a custom test using something like AC_TRY_LINK. Make sure you set the test language to C++. HTH, -Ossama -- Ossama Othman <[EMAIL PROTECTED]> Distributed Object Computing Laboratory, Univ. of California at Irvine 1024D/F7A394A8 - 84ED AA0B 1203 99E4 1068 70E6 5EB7 5E71 F7A3 94A8
