Hello all I have written some functions and have managed them within an archive (static library). $ ar cr libtest.a test.o I can compile my source which uses this library without any problem,but when I run my binary file with the command: $ gcc -o app app.o -L. -ltest -I. the program terminates with the segmentation fault error. I also have put the functions prototypes in a header file calles header.h and I have included that in my source and in my compilation command. Does anyone have any idea about this problem? Regards Ali __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com