Add header and gyp files to make libmtp build on Linux.

src/gphoto2-endian.h

+/* This file is generated automatically by configure */
+/* It is valid only for the system type x86_64-unknown-linux-gnu */
+
+#ifndef __BYTEORDER_H
+#define __BYTEORDER_H
+
+/* ntohl and relatives live here */
+#include <arpa/inet.h>
+
+/* Define generic byte swapping functions */
+#include <byteswap.h>
+#define swap16(x) bswap_16(x)
+#define swap32(x) bswap_32(x)
+#define swap64(x) bswap_64(x)
+
+/* The byte swapping macros have the form: */
+/*   EENN[a]toh or htoEENN[a] where EE is be (big endian) or */
+/* le (little-endian), NN is 16 or 32 (number of bits) and a, */
+/* if present, indicates that the endian side is a pointer to an */
+/* array of uint8_t bytes instead of an integer of the specified length. */
+/* h refers to the host's ordering method. */
+
+/* So, to convert a 32-bit integer stored in a buffer in little-endian */
+/* format into a uint32_t usable on this machine, you could use: */
+/*   uint32_t value = le32atoh(&buf[3]); */
+/* To put that value back into the buffer, you could use: */
+/*   htole32a(&buf[3], value); */
+
+/* Define aliases for the standard byte swapping macros */
+/* Arguments to these macros must be properly aligned on natural word */
+/* boundaries in order to work properly on all architectures */
+#ifndef htobe16
+# define htobe16(x) htons(x)
+#endif
+#ifndef htobe32
+# define htobe32(x) htonl(x)
+#endif
+#ifndef be16toh
+# define be16toh(x) ntohs(x)
+#endif
+#ifndef be32toh
+# define be32toh(x) ntohl(x)
+#endif
+
+#define HTOBE16(x) (x) = htobe16(x)
+#define HTOBE32(x) (x) = htobe32(x)
+#define BE32TOH(x) (x) = be32toh(x)
+#define BE16TOH(x) (x) = be16toh(x)
+
+/* On little endian machines, these macros are null */
+#ifndef htole16
+# define htole16(x)      (x)
+#endif
+#ifndef htole32
+# define htole32(x)      (x)
+#endif
+#ifndef htole64
+# define htole64(x)      (x)
+#endif
+#ifndef le16toh
+# define le16toh(x)      (x)
+#endif
+#ifndef le32toh
+# define le32toh(x)      (x)
+#endif
+#ifndef le64toh
+# define le64toh(x)      (x)
+#endif
+
+#define HTOLE16(x)      (void) (x)
+#define HTOLE32(x)      (void) (x)
+#define HTOLE64(x)      (void) (x)
+#define LE16TOH(x)      (void) (x)
+#define LE32TOH(x)      (void) (x)
+#define LE64TOH(x)      (void) (x)
+
+/* These don't have standard aliases */
+#ifndef htobe64
+# define htobe64(x)      swap64(x)
+#endif
+#ifndef be64toh
+# define be64toh(x)      swap64(x)
+#endif
+
+#define HTOBE64(x)      (x) = htobe64(x)
+#define BE64TOH(x)      (x) = be64toh(x)
+
+/* Define the C99 standard length-specific integer types */
+#include <_stdint.h>
+
+/* Here are some macros to create integers from a byte array */
+/* These are used to get and put integers from/into a uint8_t array */
+/* with a specific endianness.  This is the most portable way to generate */
+/* and read messages to a network or serial device.  Each member of a */
+/* packet structure must be handled separately. */
+
+/* Non-optimized but portable macros */
+#define be16atoh(x)     ((uint16_t)(((x)[0]<<8)|(x)[1]))
+#define be32atoh(x)     ((uint32_t)(((x)[0]<<24)|((x)[1]<<16)|((x)[2]<<8)|(x)[3]))
+#define be64atoh_x(x,off,shift)         (((uint64_t)((x)[off]))<<shift)
+#define be64atoh(x)     ((uint64_t)(be64atoh_x(x,0,56)|be64atoh_x(x,1,48)|be64atoh_x(x,2,40)| \
+        be64atoh_x(x,3,32)|be64atoh_x(x,4,24)|be64atoh_x(x,5,16)|be64atoh_x(x,6,8)|((x)[7])))
+#define le16atoh(x)     ((uint16_t)(((x)[1]<<8)|(x)[0]))
+#define le32atoh(x)     ((uint32_t)(((x)[3]<<24)|((x)[2]<<16)|((x)[1]<<8)|(x)[0]))
+#define le64atoh_x(x,off,shift) (((uint64_t)(x)[off])<<shift)
+#define le64atoh(x)     ((uint64_t)(le64atoh_x(x,7,56)|le64atoh_x(x,6,48)|le64atoh_x(x,5,40)| \
+        le64atoh_x(x,4,32)|le64atoh_x(x,3,24)|le64atoh_x(x,2,16)|le64atoh_x(x,1,8)|((x)[0])))
+
+#define htobe16a(a,x)   (a)[0]=(uint8_t)((x)>>8), (a)[1]=(uint8_t)(x)
+#define htobe32a(a,x)   (a)[0]=(uint8_t)((x)>>24), (a)[1]=(uint8_t)((x)>>16), \
+        (a)[2]=(uint8_t)((x)>>8), (a)[3]=(uint8_t)(x)
+#define htobe64a(a,x)   (a)[0]=(uint8_t)((x)>>56), (a)[1]=(uint8_t)((x)>>48), \
+        (a)[2]=(uint8_t)((x)>>40), (a)[3]=(uint8_t)((x)>>32), \
+        (a)[4]=(uint8_t)((x)>>24), (a)[5]=(uint8_t)((x)>>16), \
+        (a)[6]=(uint8_t)((x)>>8), (a)[7]=(uint8_t)(x)
+#define htole16a(a,x)   (a)[1]=(uint8_t)((x)>>8), (a)[0]=(uint8_t)(x)
+#define htole32a(a,x)   (a)[3]=(uint8_t)((x)>>24), (a)[2]=(uint8_t)((x)>>16), \
+        (a)[1]=(uint8_t)((x)>>8), (a)[0]=(uint8_t)(x)
+#define htole64a(a,x)   (a)[7]=(uint8_t)((x)>>56), (a)[6]=(uint8_t)((x)>>48), \
+        (a)[5]=(uint8_t)((x)>>40), (a)[4]=(uint8_t)((x)>>32), \
+        (a)[3]=(uint8_t)((x)>>24), (a)[2]=(uint8_t)((x)>>16), \
+        (a)[1]=(uint8_t)((x)>>8), (a)[0]=(uint8_t)(x)
+
+#endif /*__BYTEORDER_H*/