Fix the SerialPlugin build on linux (sqNullSerialPort.c must be excluded).

Make sure sqNullSerialPort.c will compile other than on Carbon Mac OS <blush>.
Have gitci check incoming if asked to do so.

Author: eliotmiranda

platforms/Cross/plugins/SerialPlugin/sqNullSerialPort.c

@@ -11,9 +11,9 @@
 *   NOTES: 
 *  Feb 22nd, 2002, JMM enable 16 ports for serial, versus four, which was capped at 2?
 ****************************************************************************/
+
 #include "sq.h"
 #include "SerialPlugin.h"
-#include <Carbon/Carbon.h>
 
 extern struct VirtualMachine *interpreterProxy;
 
@@ -44,8 +44,7 @@ int serialPortShutdown() {
 EXPORT (int) serialPortCount(void) {
   /* Return the number of serial ports available on this machine */
     return false;
-
- }
+}
 
 int serialPortIsOpen(int portNum) {
 	if ((portNum < 0) || (portNum >= MAX_PORTS)) return false;

platforms/unix/plugins/SerialPlugin/Makefile.inc

@@ -0,0 +1 @@
+OBJS=SerialPlugin$o sqUnixSerial$o

scripts/gitci

@@ -7,10 +7,11 @@
 # git add . stages new and modified, without deleted
 # git add -u stages modified and deleted, without new
 
-echo "Have you checked incoming?  Y/n \c"
+echo "Have you checked incoming?  Y/n/check \c"
 read n
 case $n in
 n|N|no|nO|No|NO)	exit 1;;
+c|C|ch*|C[hH]*)		git incoming; exit 0;;
 esac
 
 echo sanity checking generated files...