update install, create http root

trunk/auto/options.sh

@@ -168,7 +168,7 @@ if [ $SRS_DEV = YES ]; then
     SRS_NGINX=YES
     SRS_SSL=YES
     SRS_FFMPEG=YES
-    if [ $SRS_HTTP_CALLBACK = RESERVED ]; then SRS_HTTP_CALLBACK=YES; fi
+    SRS_HTTP_CALLBACK=YES
     SRS_HTTP_SERVER=YES
     SRS_HTTP_API=YES
     SRS_LIBRTMP=YES

trunk/configure

@@ -255,6 +255,8 @@ install-api: install
 install:
 	@echo "mkdir \$(DESTDIR)"
 	@mkdir -p \$(DESTDIR)
+	@echo "make the http root dir"
+	@mkdir -p \$(DESTDIR)/objs/nginx/html
 	@echo "copy binary files"
 	@mkdir -p \$(DESTDIR)/objs
 	@cp objs/srs \$(DESTDIR)/objs