🚀 go-pugleaf

| I am having trouble compiling the following small ANSI compliant program:

As RMS points out, this is not an ANSI compliant program (even beyond
the fact that it uses sockets, which aren't in ANSI nor POSIX).

| /* start of program */
| #include <sys/socket.h>
| struct sockaddr_in sin;
| /* end of program */
| 
| The problem is that I get the following error message:
| 
| sin.c:3: built-in function `sin' declared as non-function
| sin.c:3: storage size of `sin' isn't known

	...

| Is there a solution to this problem?

Look into -fno-builtin:

`-fno-builtin'
     Don't recognize built-in functions that do not begin with two
     leading underscores.  Currently, the functions affected include
     `abort', `abs', `alloca', `cos', `exit', `fabs', `ffs', `labs',
     `memcmp', `memcpy', `sin', `sqrt', `strcmp', `strcpy', and
     `strlen'.

     The `-ansi' option prevents `alloca' and `ffs' from being builtin
     functions, since these functions do not have an ANSI standard
     meaning.

Also, you can do:

	-Dsin=xxx_sin

on the command line.

--
Michael Meissner	email: meissner@osf.org		phone: 617-621-8861
Open Software Foundation, 11 Cambridge Center, Cambridge, MA, 02142

You are in a twisty little passage of standards, all conflicting.