nginx 0.5.20 *) Feature: the "sendfile_max_chunk" directive. *) Feature: the "$http_...", "$sent_http_...", and "$upstream_http_..." variables may be changed using the "set" directive. *) Bugfix: a segmentation fault might occur in worker process if the SSI command 'if expr="$var = /"' was used. *) Bugfix: trailing boundary of multipart range response was transferred incorrectly. Thanks to Evan Miller. *) Bugfix: nginx did not work on Solaris/sparc64 if it was built by Sun Studio. Thanks to Andrei Nigmatulin. *) Bugfix: the ngx_http_perl_module could not built by Solaris make. Thanks to Andrei Nigmatulin.

--- a/src/os/unix/ngx_sunpro_atomic_sparc64.h
+++ b/src/os/unix/ngx_sunpro_atomic_sparc64.h
@@ -24,7 +24,7 @@ static ngx_inline ngx_atomic_uint_t
 ngx_atomic_cmp_set(ngx_atomic_t *lock, ngx_atomic_uint_t old,
     ngx_atomic_uint_t set)
 {
-    NGX_CASA(set, old, lock);
+    set = NGX_CASA(set, old, lock);
 
     return (set == old);
 }
@@ -41,7 +41,7 @@ ngx_atomic_fetch_add(ngx_atomic_t *value
 
         res = old + add;
 
-        NGX_CASA(res, old, value);
+        res = NGX_CASA(res, old, value);
 
         if (res == old) {
             return res;