> Read /usr/include/bits/mathcalls.h. Have you compiled a sample code with log2l() and <math.h> and checked whether a warning was displayed? I doubt it.
Could you compile the following code with "gcc -Wall"? #include <math.h> int main(void) { long double a=0.1; return (int) log2l(a); } I got the following warning, which should not happen according to the manual page. sh-2.05b$ gcc -Wall log2l.c -lm log2l.c: In function `main': log2l.c:6: warning: implicit declaration of function `log2l' Ryutaroh -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]