diff --git a/ChangeLog b/ChangeLog
index f4bd538409..d2c9b2d487 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,17 +1,22 @@
+Tue Jul 25 13:14:32 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* process.c (rb_proc_times): rename hz to hertz to avoid name
+	  crash on AIX.  [ruby-dev:29126]
+
 Mon Jul 24 22:03:40 2006  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* eval.c (backtrace): skip frames successive on node and method name.
 
-Mon Jul 24 15:19:55 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
-
-	* eval.c (rb_call0): revert last change.  [ruby-dev:29112]
-	  [ruby-core:08374]
-
 Mon Jul 24 15:51:52 2006  Tanaka Akira  <akr@fsij.org>
 
 	* ext/readline/readline.c (readline_readline): rl_deprep_term_function
 	  may be NULL with libedit.  reported by Ryan Davis.  [ruby-dev:29070]
 
+Mon Jul 24 15:19:55 2006  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* eval.c (rb_call0): revert last change.  [ruby-dev:29112]
+	  [ruby-core:08374]
+
 Sun Jul 23 22:59:49 2006  Tanaka Akira  <akr@fsij.org>
 
 	* test/socket/test_unix.rb: disabled on cygwin.
diff --git a/process.c b/process.c
index 8d1f07de82..42b9d67e26 100644
--- a/process.c
+++ b/process.c
@@ -1597,11 +1597,11 @@ rb_f_system(int argc, VALUE *argv)
     chfunc = signal(SIGCHLD, SIG_DFL);
 #endif
     status = rb_spawn(argc, argv);
-    if (status > 0) {
 #if defined(HAVE_FORK) || defined(HAVE_SPAWNV)
+    if (status > 0) {
 	rb_syswait(status);
-#endif
     }
+#endif
 #ifdef SIGCHLD
     signal(SIGCHLD, chfunc);
 #endif
@@ -3531,7 +3531,7 @@ VALUE
 rb_proc_times(VALUE obj)
 {
 #if defined(HAVE_TIMES) && !defined(__CHECKER__)
-    const double hz =
+    const double hertz =
 #ifdef HAVE__SC_CLK_TCK
 	(double)sysconf(_SC_CLK_TCK);
 #else
@@ -3549,10 +3549,10 @@ rb_proc_times(VALUE obj)
 
     times(&buf);
     return rb_struct_new(S_Tms,
-			 utime = rb_float_new(buf.tms_utime / hz),
-			 stime = rb_float_new(buf.tms_stime / hz),
-			 cutime = rb_float_new(buf.tms_cutime / hz),
-			 sctime = rb_float_new(buf.tms_cstime / hz));
+			 utime = rb_float_new(buf.tms_utime / hertz),
+			 stime = rb_float_new(buf.tms_stime / hertz),
+			 cutime = rb_float_new(buf.tms_cutime / hertz),
+			 sctime = rb_float_new(buf.tms_cstime / hertz));
 #else
     rb_notimplement();
 #endif