Jim,On Linux you use -lm, but be careful if you are using Solaris, use -lmath to link to the math library.
Leith Jim Watson wrote:
Hi, i would appreciate some help to see if this test program is valid before i file a bug, thanks jim jim@sun:~/C$ gcc -o test_ceil test_ceil.c/tmp/ccwfWhXU.o(.text+0x1c): In function ain':: undefined reference to eil' collect2: ld returned 1 exit status jim@sun:~/C$ cat test_ceil.c #include<math.h> int main(void) { double cvalue; cvalue = ceil((double)1); } jim@sun:~/C$ gcc --version gcc (GCC) 3.3.3 20040125 (prerelease) (Debian)