develop/ktcc: Post-SVN tidy

- Move source code from `trunk` into program root directory.
- Update build files.

programs/develop/ktcc/libc.obj/include/setjmp.h

@@ -0,0 +1,17 @@
+#ifndef _SETJMP_H_
+#define _SETJMP_H_
+
+#include <stddef.h>
+
+typedef unsigned long __jmp_buf[6];
+
+typedef struct __jmp_buf_tag {
+    __jmp_buf __jb;
+    unsigned long __fl;
+    unsigned long __ss[128 / sizeof(long)];
+} jmp_buf[1];
+
+DLLAPI int setjmp(jmp_buf env);
+DLLAPI void longjmp(jmp_buf env, int val);
+
+#endif // _SETJMP_H_