On Sun, Dec 05, 1999 at 09:09:14PM -0600, Brian G. Neal wrote: > I am trying to port some C code from Windows (i.e. no > makefile) and I am using gcc for the first time. > One of the files has some sin() and cos() calls > in it. And yes it includes math.h. If I do a: > > % gcc -o main main.c file1.c file2.c > > I get some error messages about not finding sin and cos. > > I assume I need to include some library that has sin/cos. > I found the -l switch to pass libraries to the linker but > I have no idea what library to use. Am I missing something > obvious here?
You have to use -lm. Why the system is still set up that way, I can only ponder. After all, the math library is part of ISO/ANSI C. -- +----------------------------------------------------+ | Eric G. Miller [email protected] | | GnuPG public key: http://www.jps.net/egm2/gpg.asc | +----------------------------------------------------+
