#define PG_OID_INT8 20
#define PG_OID_INT4 23
-#if defined(HAVE_BYTESWAP_H)
+#if HAVE_BYTESWAP
#include <byteswap.h>
-#elif defined(HAVE_SYS_ENDIAN_H)
+#define PG_BSWAP32(x) bswap_32(x)
+#define PG_BSWAP64(x) bswap_64(x)
+#elif HAVE_SYS_ENDIAN
#include <sys/endian.h>
+#define PG_BSWAP32(x) bswap32(x)
+#define PG_BSWAP64(x) bswap64(x)
+#else
+#error "No appropriate byteswap found for your system."
#endif
-#if __BYTE_ORDER == __BIG_ENDIAN
-#define PGint16(x) (x)
+#if defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+#define PGint32(x) (x)
+#define PGint64(x) (x)
+#elif defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+#define PGint32(x) PG_BSWAP32(x)
+#define PGint64(x) PG_BSWAP64(x)
+#elif defined(_BYTE_ORDER) && (_BYTE_ORDER == _BIG_ENDIAN)
#define PGint32(x) (x)
#define PGint64(x) (x)
+#elif defined(_BYTE_ORDER) && (_BYTE_ORDER == _LITTLE_ENDIAN)
+#define PGint32(x) PG_BSWAP32(x)
+#define PGint64(x) PG_BSWAP64(x)
#else
-#define PGint16(x) __bswap_16 (x)
-#define PGint32(x) __bswap_32 (x)
-#define PGint64(x) __bswap_64 (x)
+#error "Cannot determine byte order."
#endif
const char *build_conninfo(const char *db, const char *username, const char *password, const char *host, const char *port);