allow tcc be build from separate objects

If you want that, run: make NOTALLINONE=1

tcccoff.c

@@ -18,6 +18,8 @@
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+
+#include "tcc.h"
 #include "coff.h"
 
 #define MAXNSCNS 255		/* MAXIMUM NUMBER OF SECTIONS         */
@@ -73,7 +75,7 @@ typedef struct {
     unsigned short dummy4;
 } AUXEF;
 
-int tcc_output_coff(TCCState *s1, FILE *f)
+ST_FUNC int tcc_output_coff(TCCState *s1, FILE *f)
 {
     Section *tcc_sect;
     SCNHDR *coff_sec;