From 86743d987e939659654abae36211ea0806608888 Mon Sep 17 00:00:00 2001
From: "Todd C. Miller" <Todd.Miller@courtesan.com>
Date: Fri, 14 Dec 2001 06:52:44 +0000
Subject: [PATCH] Add checks for volatile and sig_atomic_t

---
 config.h.in  | 6 ++++++
 configure.in | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/config.h.in b/config.h.in
index 20f8372f4..440f3e7af 100644
--- a/config.h.in
+++ b/config.h.in
@@ -94,6 +94,9 @@
 /* Define to `int' if <sys/types.h> doesn't define.  */
 #undef ssize_t
 
+/* Define to `int' if <signal.h> doesn't define.  */
+#undef sig_atomic_t
+
 /* Define to `int' if <sys/types.h> doesn't define.  */
 #undef dev_t
 
@@ -103,6 +106,9 @@
 /* Define to be nil if C compiler doesn't support "const."  */
 #undef const
 
+/* Define to be nil if C compiler doesn't support "volatile."  */
+#undef volatile
+
 /* Define if your compiler supports the "long long" type.  */
 #undef HAVE_LONG_LONG
 
diff --git a/configure.in b/configure.in
index 1fb8283cf..1fe28fbb9 100644
--- a/configure.in
+++ b/configure.in
@@ -1498,6 +1498,7 @@ dnl C compiler checks (to be done after os checks)
 dnl
 AC_PROG_GCC_TRADITIONAL
 AC_C_CONST
+AC_C_VOLATILE
 dnl
 dnl Program checks
 dnl
@@ -1532,6 +1533,8 @@ dnl typedef checks
 dnl
 AC_TYPE_MODE_T
 AC_TYPE_UID_T
+AC_CHECK_TYPES([sig_atomic_t], , [AC_DEFINE(sig_atomic_t, int)], [#include <sys/types.h>
+#include <signal.h>])
 SUDO_TYPE_SIZE_T
 SUDO_TYPE_SSIZE_T
 SUDO_TYPE_DEV_T
-- 
2.40.0