Exactly g++ vs gcc is problem. I do not know, why! In first case I use gcc for compile and g++ for linking, and load library with ldopen is OK but, in second case i use gcc for compile and for linking, and as resulet i get Segmentation fault. btw, i need only gcc, not g++ >What happens when you do: >gcc test_library.c -o test_library -ldl Same :( BR Kolesar -- View this message in context: http://www.nabble.com/gcc-vs-g%2B%2B-for-dlopen-tp20699786p20707261.html Sent from the gcc - Help mailing list archive at Nabble.com.