Initial git repository creation, version 0.3.1 plus changes
diff --git a/support.h b/support.h
new file mode 100644
index 0000000..cba12d7
--- /dev/null
+++ b/support.h
@@ -0,0 +1,42 @@
+#include <stdint.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#ifdef __APPLE__
+// Darwin (Mac OS) only: disk IOCTLs are different, and there is no lseek64
+#include <sys/disk.h>
+#define lseek64 lseek
+#else
+
+// Linux only....
+#include <linux/fs.h>
+#endif
+
+#include <string>
+
+#ifndef __GPTSUPPORT
+#define __GPTSUPPORT
+
+// Set this as a default
+#define SECTOR_SIZE UINT32_C(512)
+
+using namespace std;
+
+// a GUID
+struct GUIDData {
+   uint64_t data1;
+   uint64_t data2;
+}; // struct GUIDData
+
+int GetNumber(int low, int high, int def, const char prompt[]);
+char GetYN(void);
+uint64_t GetLastSector(uint64_t low, uint64_t high, char prompt[]);
+char* BytesToSI(uint64_t size, char theValue[]);
+int GetBlockSize(int fd);
+char* GUIDToStr(struct GUIDData theGUID, char* theString);
+GUIDData GetGUID(void);
+uint64_t PowerOf2(int value);
+
+uint64_t disksize(int fd, int* err);
+
+#endif