[CMake] Also append the LAPACK libs to ALL_PKG_LIBS

We dont provide a custom find module, so we need to update
the property after executing the system wide find module.

cmake/modules/DuneCommonMacros.cmake

@@ -12,6 +12,9 @@ if(Fortran_Works)
   # search for lapack
   find_package(LAPACK)
   set(HAVE_LAPACK ${LAPACK_FOUND})
+  if(${HAVE_LAPACK})
+    set_property(GLOBAL APPEND PROPERTY ALL_PKG_LIBS "${LAPACK_LIBRARIES}")
+  endif(${HAVE_LAPACK})
   set(HAVE_BLAS ${BLAS_FOUND})
 else(Fortran_Works)
   set(HAVE_LAPACK Off)