From 46c6fd304b0d4783111c21bcad9ad32440c69ead Mon Sep 17 00:00:00 2001
From: Peter Ohler <peter@ohler.com>
Date: Tue, 10 Aug 2021 21:29:19 -0400
Subject: [PATCH] First attempt support C99 compiler

---
 CHANGELOG.md      |  4 ++++
 ext/oj/cache.c    | 21 ++++++++++++---------
 lib/oj/version.rb |  2 +-
 3 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e3ea6026..647fbdd6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## 3.13.2 - 2021-08-11
+
+- Fixed C99 compiler errors.
+
 ## 3.13.1 - 2021-08-09
 
 - Fixed failing build on Windows.
diff --git a/ext/oj/cache.c b/ext/oj/cache.c
index a60650a5..ebaf10d9 100644
--- a/ext/oj/cache.c
+++ b/ext/oj/cache.c
@@ -98,31 +98,30 @@ Cache cache_create(size_t size, VALUE (*form)(const char *str, size_t len), bool
     memset(c->slots, 0, sizeof(Slot) * c->size);
     c->form = form;
     c->cnt  = 0;
-    c->mark  = mark;
+    c->mark = mark;
 
     return c;
 }
 
 static void rehash(Cache c) {
     uint32_t osize = c->size;
+    Slot *   end   = c->slots + osize;
+    Slot *   sp;
 
     c->size = osize * 4;
     c->mask = c->size - 1;
     REALLOC_N(c->slots, Slot, c->size);
     memset(c->slots + osize, 0, sizeof(Slot) * osize * 3);
-
-    Slot *end = c->slots + osize;
-    for (Slot *sp = c->slots; sp < end; sp++) {
+    for (sp = c->slots; sp < end; sp++) {
         Slot s    = *sp;
         Slot next = NULL;
 
         *sp = NULL;
         for (; NULL != s; s = next) {
-            next = s->next;
-
             uint32_t h      = s->hash & c->mask;
             Slot *   bucket = c->slots + h;
 
+            next    = s->next;
             s->next = *bucket;
             *bucket = s;
         }
@@ -132,7 +131,9 @@ static void rehash(Cache c) {
 void cache_free(Cache c) {
     for (uint32_t i = 0; i < c->size; i++) {
         Slot next;
-        for (Slot s = c->slots[i]; NULL != s; s = next) {
+        Slot s;
+
+        for (s = c->slots[i]; NULL != s; s = next) {
             next = s->next;
             xfree(s);
         }
@@ -143,9 +144,11 @@ void cache_free(Cache c) {
 
 void cache_mark(Cache c) {
     if (c->mark) {
-        for (uint32_t i = 0; i < c->size; i++) {
+	uint32_t i;
+
+        for (i = 0; i < c->size; i++) {
             for (Slot s = c->slots[i]; NULL != s; s = s->next) {
-		rb_gc_mark(s->val);
+                rb_gc_mark(s->val);
             }
         }
     }
diff --git a/lib/oj/version.rb b/lib/oj/version.rb
index 0957d072..bb99a607 100644
--- a/lib/oj/version.rb
+++ b/lib/oj/version.rb
@@ -1,5 +1,5 @@
 
 module Oj
   # Current version of the module.
-  VERSION = '3.13.1'
+  VERSION = '3.13.2'
 end