Lifted from Arch: https://git.archlinux.org/svntogit/packages.git/tree/trunk/enchant-2.patch?h=packages/php

--- php-7.1.13/ext/enchant/config.m4.orig	2018-01-03 02:32:29.000000000 +0000
+++ php-7.1.13/ext/enchant/config.m4	2018-01-21 22:10:03.788875780 +0000
@@ -14,9 +14,9 @@
 	    ENCHANT_SEARCH_DIRS="/usr/local /usr"
 	fi
 	for i in $ENCHANT_SEARCH_DIRS; do
-		if test -f $i/include/enchant/enchant.h; then
+		if test -f $i/include/enchant-2/enchant.h; then
 			ENCHANT_DIR=$i
-			ENCHANT_INCDIR=$i/include/enchant
+			ENCHANT_INCDIR=$i/include/enchant-2
 		elif test -f $i/include/enchant.h; then
 			ENCHANT_DIR=$i
 			ENCHANT_INCDIR=$i/include
@@ -31,7 +31,7 @@
 
 	AC_DEFINE(HAVE_ENCHANT,1,[ ])
 	PHP_SUBST(ENCHANT_SHARED_LIBADD)
-	PHP_ADD_LIBRARY_WITH_PATH(enchant, $ENCHANT_LIBDIR, ENCHANT_SHARED_LIBADD)
+	PHP_ADD_LIBRARY_WITH_PATH(enchant-2, $ENCHANT_LIBDIR, ENCHANT_SHARED_LIBADD)
 	PHP_ADD_INCLUDE($ENCHANT_INCDIR)
 	PHP_CHECK_LIBRARY(enchant, enchant_broker_set_param,
 	[
--- php-7.2.1/ext/enchant/enchant.c.orig	2018-01-02 22:36:05.000000000 +0000
+++ php-7.2.1/ext/enchant/enchant.c	2018-01-21 22:34:50.205791491 +0000
@@ -741,7 +741,7 @@
 			for (i = 0; i < n_sugg; i++) {
 				add_next_index_string(sugg, suggs[i]);
 			}
-			enchant_dict_free_suggestions(pdict->pdict, suggs);
+			enchant_dict_free_string_list(pdict->pdict, suggs);
 		}
 
 
@@ -798,7 +798,7 @@
 			add_next_index_string(return_value, suggs[i]);
 		}
 
-		enchant_dict_free_suggestions(pdict->pdict, suggs);
+		enchant_dict_free_string_list(pdict->pdict, suggs);
 	}
 }
 /* }}} */
@@ -818,7 +818,7 @@
 
 	PHP_ENCHANT_GET_DICT;
 
-	enchant_dict_add_to_personal(pdict->pdict, word, wordlen);
+	enchant_dict_add(pdict->pdict, word, wordlen);
 }
 /* }}} */
 
@@ -856,7 +856,7 @@
 
 	PHP_ENCHANT_GET_DICT;
 
-	RETURN_BOOL(enchant_dict_is_in_session(pdict->pdict, word, wordlen));
+	RETURN_BOOL(enchant_dict_is_added(pdict->pdict, word, wordlen));
 }
 /* }}} */