diff -Nru fltk1.3-1.3.4/debian/changelog fltk1.3-1.3.4/debian/changelog
--- fltk1.3-1.3.4/debian/changelog	2017-08-07 03:06:46.000000000 +0000
+++ fltk1.3-1.3.4/debian/changelog	2017-08-08 18:06:54.000000000 +0000
@@ -1,3 +1,10 @@
+fltk1.3 (1.3.4-6) unstable; urgency=medium
+
+  * debian/fix-fltk-targets-noconfig: Correct overzealous escaping that led
+    to doubled multiarch paths for some settings.  (Closes: #871508.)
+
+ -- Aaron M. Ucko <ucko@debian.org>  Tue, 08 Aug 2017 14:06:54 -0400
+
 fltk1.3 (1.3.4-5) unstable; urgency=medium
 
   * debian/{compat,control}: Advance to Debhelper 10.
diff -Nru fltk1.3-1.3.4/debian/fix-fltk-targets-noconfig fltk1.3-1.3.4/debian/fix-fltk-targets-noconfig
--- fltk1.3-1.3.4/debian/fix-fltk-targets-noconfig	2017-08-07 01:12:59.000000000 +0000
+++ fltk1.3-1.3.4/debian/fix-fltk-targets-noconfig	2017-08-08 18:04:28.000000000 +0000
@@ -3,7 +3,7 @@
 
 my $to_untag = '';
 while (<>) {
-    s,(\$\{_IMPORT_PREFIX}/lib)(?!/$ENV\{DEB_HOST_MULTIARCH}),$1/$ENV{DEB_HOST_MULTIARCH},g;
+    s,(\$\{_IMPORT_PREFIX}/lib)(?!/$ENV{DEB_HOST_MULTIARCH}),$1/$ENV{DEB_HOST_MULTIARCH},g;
     s,\.so\.1\.3\.\d*,\.so,g;
     s,([^a-z]fltk\w*(?<!_SHARED))(\W),${1}_STATIC$2,g;
     s,(libfltk\w*)_SHARED,$1,g;