enable rtree in the makefile

Author: lovasoa

Makefile

@@ -4,7 +4,7 @@ EMSCRIPTEN?=/usr/bin
 
 EMCC=$(EMSCRIPTEN)/emcc
 
-CFLAGS=-DSQLITE_OMIT_LOAD_EXTENSION -DSQLITE_DISABLE_LFS -DLONGDOUBLE_TYPE=double -DSQLITE_INT64_TYPE="long long int" -DSQLITE_THREADSAFE=0
+CFLAGS=-DSQLITE_OMIT_LOAD_EXTENSION -DSQLITE_DISABLE_LFS -DLONGDOUBLE_TYPE=double -DSQLITE_INT64_TYPE="long long int" -DSQLITE_THREADSAFE=0 -DSQLITE_ENABLE_RTREE=1
 
 all: js/sql.js