pic16bit: Add basic unistd.h file since it's not provided by tool chain.

dpgeorge · dpgeorge · commit 0d6b2341b8f8 · 2015-09-15T16:24:13.000+01:00
diff --git a/pic16bit/unistd.h b/pic16bit/unistd.h
@@ -0,0 +1,3 @@
+// XC16 compiler doesn't seem to have unistd.h file
+
+#define SEEK_CUR 1

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+// XC16 compiler doesn't seem to have unistd.h file`
	`2`	`+`
	`3`	`+#define SEEK_CUR 1`