only enable pread/pwrite for linux. fixes mattn#533 and fixes mattn#531

Author: basvanbeek

sqlite3.go

@@ -9,7 +9,8 @@ package sqlite3
 
 /*
 #cgo CFLAGS: -std=gnu99
-#cgo CFLAGS: -DSQLITE_ENABLE_RTREE -DSQLITE_THREADSAFE=1 -DHAVE_USLEEP=1 -DHAVE_PREAD64=1 -DHAVE_PWRITE64=1
+#cgo CFLAGS: -DSQLITE_ENABLE_RTREE -DSQLITE_THREADSAFE=1 -DHAVE_USLEEP=1
+#cgo linux CFLAGS: -DHAVE_PREAD64=1 -DHAVE_PWRITE64=1
 #cgo CFLAGS: -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_FTS4_UNICODE61
 #cgo CFLAGS: -DSQLITE_TRACE_SIZE_LIMIT=15
 #cgo CFLAGS: -DSQLITE_DISABLE_INTRINSIC