diff -Nru ruby-charlock-holmes-0.7.5/debian/changelog ruby-charlock-holmes-0.7.5/debian/changelog
--- ruby-charlock-holmes-0.7.5/debian/changelog	2018-03-18 14:42:44.000000000 +0000
+++ ruby-charlock-holmes-0.7.5/debian/changelog	2018-11-18 16:20:23.000000000 +0000
@@ -1,3 +1,10 @@
+ruby-charlock-holmes (0.7.5-1+rpi1) buster-staging; urgency=medium
+
+  * Apply patch from https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=913510
+    to fix build with new ICU.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Sun, 18 Nov 2018 16:20:23 +0000
+
 ruby-charlock-holmes (0.7.5-1) unstable; urgency=medium
 
   [ Cédric Boutillier ]
diff -Nru ruby-charlock-holmes-0.7.5/debian/patches/ruby-charlock-holmes_ICU_63.1.patch ruby-charlock-holmes-0.7.5/debian/patches/ruby-charlock-holmes_ICU_63.1.patch
--- ruby-charlock-holmes-0.7.5/debian/patches/ruby-charlock-holmes_ICU_63.1.patch	1970-01-01 00:00:00.000000000 +0000
+++ ruby-charlock-holmes-0.7.5/debian/patches/ruby-charlock-holmes_ICU_63.1.patch	2018-11-18 16:19:26.000000000 +0000
@@ -0,0 +1,60 @@
+Description: fix FTBFS with ICU 63.1
+ Add icu namespace.
+Author: Laszlo Boszormenyi (GCS) <gcs@debian.org>
+Last-Update: 2018-11-04
+
+---
+
+--- ruby-charlock-holmes-0.7.5.orig/ext/charlock_holmes/transliterator.cpp
++++ ruby-charlock-holmes-0.7.5/ext/charlock_holmes/transliterator.cpp
+@@ -36,7 +36,7 @@ static VALUE rb_cTransliterator;
+ 
+ static VALUE rb_transliterator_id_list(VALUE self) {
+   UErrorCode status = U_ZERO_ERROR;
+-  StringEnumeration *id_list;
++  icu::StringEnumeration *id_list;
+   int32_t id_list_size;
+   const char *curr_id;
+   int32_t curr_id_len;
+@@ -44,7 +44,7 @@ static VALUE rb_transliterator_id_list(V
+   VALUE rb_curr_id;
+ 
+   id_list_size = 0;
+-  id_list = Transliterator::getAvailableIDs(status);
++  id_list = icu::Transliterator::getAvailableIDs(status);
+   if(!U_SUCCESS(status)) {
+     rb_raise(rb_eArgError, "%s", u_errorName(status));
+   }
+@@ -78,12 +78,12 @@ static VALUE rb_transliterator_id_list(V
+ static VALUE rb_transliterator_transliterate(VALUE self, VALUE rb_txt, VALUE rb_id) {
+   UErrorCode status = U_ZERO_ERROR;
+   UParseError p_error;
+-  Transliterator *trans;
++  icu::Transliterator *trans;
+   const char *txt;
+   size_t txt_len;
+   const char *id;
+   size_t id_len;
+-  UnicodeString *u_txt;
++  icu::UnicodeString *u_txt;
+   std::string result;
+   VALUE rb_out;
+ 
+@@ -98,14 +98,14 @@ static VALUE rb_transliterator_translite
+   id = RSTRING_PTR(rb_id);
+   id_len = RSTRING_LEN(rb_id);
+ 
+-  trans = Transliterator::createInstance(UnicodeString(id, id_len), UTRANS_FORWARD, p_error, status);
++  trans = icu::Transliterator::createInstance(icu::UnicodeString(id, id_len), UTRANS_FORWARD, p_error, status);
+   if(!U_SUCCESS(status)) {
+     rb_raise(rb_eArgError, "%s", u_errorName(status));
+   }
+ 
+-  u_txt = new UnicodeString(txt, txt_len);
++  u_txt = new icu::UnicodeString(txt, txt_len);
+   trans->transliterate(*u_txt);
+-  StringByteSink<std::string> sink(&result);
++  icu::StringByteSink<std::string> sink(&result);
+   u_txt->toUTF8(sink);
+ 
+   delete u_txt;
diff -Nru ruby-charlock-holmes-0.7.5/debian/patches/series ruby-charlock-holmes-0.7.5/debian/patches/series
--- ruby-charlock-holmes-0.7.5/debian/patches/series	2018-03-18 14:42:44.000000000 +0000
+++ ruby-charlock-holmes-0.7.5/debian/patches/series	2018-11-18 16:20:23.000000000 +0000
@@ -0,0 +1 @@
+ruby-charlock-holmes_ICU_63.1.patch