Hum.. very sorry for that, I just forgot to add the "-lregex" at the end of the command line. This is correct : gcc -o mytest mytest.cpp -lregex This is wrong : gcc -o mytest -lregex mytest.cpp ___________________________________________________________ Do You Yahoo!? -- Pour faire vos courses sur le Net, Yahoo! Shopping : http://fr.shopping.yahoo.com -- Want to unsubscribe from this list? Check out: http://cygwin.com/ml/#unsubscribe-simple