* Harald Servat wrote on Thu, Apr 12, 2007 at 06:37:00PM CEST: > > > mac wrote: > > > > > > > > i have this line in a configure.in: > > > > AC_CHECK_LIB([clips], [Clear]) > > > > What does config.log say? > > > > configure:5971: gcc -o conftest -g -O2 conftest.c -lclips -lm >&5 > > /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/libclips.so: undefined > > reference to `EnvUserFunctions' > > > > I think why this check doesnt work, is necessary to define a function > > called EnvUserFunctions, because is an undefined symbol. > > > > How could i make this check work? > > I would suggest you locate that "EnvUserFunctions" symbol (not > undefined, a real TEXT or DATA component) and then force CHECK_LIB to > use the container of this symbol. > > If EnvUserFunctions is on libblabla.so maybe a hardcoded solution > would be to set LIBS="-lblabla" before calling AC_CHECK_LIB Here's a suggestion for a macro to specifically check for the Clips library. Hope that helps. Cheers, Ralf # Test for the Clips library, <http://www.ghg.net/clips/CLIPS.html>. # This library is special in that it requires the user to define some # symbols needed from within the library. # If library and header are found, -lClips is added to LIBS. AC_DEFUN([RW_CHECK_CLIPS_LIB], [AC_CACHE_CHECK([for Clips library], [rw_cv_clips_lib], [rw_save_LIBS=$LIBS LIBS="-lClips $LIBS" AC_LINK_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT[ #ifdef __cplusplus extern "C" { #endif #include "clips.h" void UserFunctions(void) { } void EnvUserFunctions(void *p) { } #ifdef __cplusplus } #endif ]], [[CreateEnvironment();]])], [rw_cv_clips_lib=yes], [rw_cv_clips_lib=no]) if test "$rw_cv_clips_lib" != yes; then LIBS=$rw_save_LIBS fi ])]) _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
