Patch from: Jeff Bilyk <jbilyk@alpinelinux.org>

--- smokeping-2.6.1/htdocs/Makefile.in
+++ smokeping-2.6.1/htdocs/Makefile.in.new
@@ -214,7 +214,7 @@
      cropper/cropper.uncompressed.js cropper/cropper.js
 
 EXTRA_DIST = $(JS)
-jsdir = $(DESTDIR)$(HTDOCSDIR)
+jsdir = $(HTDOCSDIR)
 nobase_js_DATA = $(JS)
 all: all-am