1 files changed, 22 insertions, 2 deletions
diff --git a/lib/unictype/joininggroup_byname.h b/lib/unictype/joininggroup_byname.h
index ac00ad9..e62d36d 100644
--- a/lib/unictype/joininggroup_byname.h
+++ b/lib/unictype/joininggroup_byname.h
@@ -1,4 +1,4 @@
-/* ANSI-C code produced by gperf version 3.1 */
+/* ANSI-C code produced by gperf version 3.2 */
 /* Command-line: gperf -m 10 ./unictype/joininggroup_byname.gperf  */
 /* Computed positions: -k'1-2,10-12,$' */
 
@@ -41,7 +41,7 @@ struct named_joining_group { int name; int joining_group; };
 
 #ifndef GPERF_DOWNCASE
 #define GPERF_DOWNCASE 1
-static unsigned char gperf_downcase[256] =
+static const unsigned char gperf_downcase[256] =
   {
       0,   1,   2,   3,   4,   5,   6,   7,   8,   9,  10,  11,  12,  13,  14,
      15,  16,  17,  18,  19,  20,  21,  22,  23,  24,  25,  26,  27,  28,  29,
@@ -125,12 +125,27 @@ joining_group_hash (register const char *str, register size_t len)
     {
       default:
         hval += asso_values[(unsigned char)str[11]+1];
+#if defined __cplusplus && (__cplusplus >= 201703L || (__cplusplus >= 201103L && defined __clang_major__ && defined __clang_minor__ && __clang_major__ + (__clang_minor__ >= 9) > 3))
+      [[fallthrough]];
+#elif defined __GNUC__ && __GNUC__ >= 7
+      __attribute__ ((__fallthrough__));
+#endif
       /*FALLTHROUGH*/
       case 11:
         hval += asso_values[(unsigned char)str[10]];
+#if defined __cplusplus && (__cplusplus >= 201703L || (__cplusplus >= 201103L && defined __clang_major__ && defined __clang_minor__ && __clang_major__ + (__clang_minor__ >= 9) > 3))
+      [[fallthrough]];
+#elif defined __GNUC__ && __GNUC__ >= 7
+      __attribute__ ((__fallthrough__));
+#endif
       /*FALLTHROUGH*/
       case 10:
         hval += asso_values[(unsigned char)str[9]];
+#if defined __cplusplus && (__cplusplus >= 201703L || (__cplusplus >= 201103L && defined __clang_major__ && defined __clang_minor__ && __clang_major__ + (__clang_minor__ >= 9) > 3))
+      [[fallthrough]];
+#elif defined __GNUC__ && __GNUC__ >= 7
+      __attribute__ ((__fallthrough__));
+#endif
       /*FALLTHROUGH*/
       case 9:
       case 8:
@@ -141,6 +156,11 @@ joining_group_hash (register const char *str, register size_t len)
       case 3:
       case 2:
         hval += asso_values[(unsigned char)str[1]];
+#if defined __cplusplus && (__cplusplus >= 201703L || (__cplusplus >= 201103L && defined __clang_major__ && defined __clang_minor__ && __clang_major__ + (__clang_minor__ >= 9) > 3))
+      [[fallthrough]];
+#elif defined __GNUC__ && __GNUC__ >= 7
+      __attribute__ ((__fallthrough__));
+#endif
       /*FALLTHROUGH*/
       case 1:
         hval += asso_values[(unsigned char)str[0]];