From adb0270edf6ffae2f2d9d319aed7737f85fa6ec2 Mon Sep 17 00:00:00 2001
From: "John (J5) Palmieri" <johnp@redhat.com>
Date: Wed, 3 Oct 2007 17:02:23 -0400
Subject: fd.o bug #11872 fix clearenv for systems that do not have it

* patch from Brian Cameron <brian.cameron at sun.com>
---
 configure.in        |  2 +-
 dbus/dbus-sysdeps.c | 14 +++++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/configure.in b/configure.in
index ee0d40ba..34e653f8 100644
--- a/configure.in
+++ b/configure.in
@@ -586,7 +586,7 @@ fi
 AC_CHECK_LIB(socket,socket)
 AC_CHECK_FUNC(gethostbyname,,[AC_CHECK_LIB(nsl,gethostbyname)])
 
-AC_CHECK_FUNCS(vsnprintf vasprintf nanosleep usleep poll setenv unsetenv socketpair getgrouplist fpathconf setrlimit)
+AC_CHECK_FUNCS(vsnprintf vasprintf nanosleep usleep poll setenv clearenv unsetenv socketpair getgrouplist fpathconf setrlimit)
 
 AC_MSG_CHECKING(for dirfd)
 AC_TRY_LINK([
diff --git a/dbus/dbus-sysdeps.c b/dbus/dbus-sysdeps.c
index c76603a8..1a736e42 100644
--- a/dbus/dbus-sysdeps.c
+++ b/dbus/dbus-sysdeps.c
@@ -185,7 +185,19 @@ _dbus_getenv (const char *varname)
 dbus_bool_t
 _dbus_clearenv (void)
 {
-  return (clearenv () == 0);
+  dbus_bool_t rc = TRUE;
+
+#ifdef HAVE_CLEARENV
+  if (clearenv () != 0)
+     rc = FALSE;
+#else
+  extern char **environ;
+
+  if (environ != NULL)
+    environ[0] = NULL;
+#endif
+
+  return rc;
 }
 
 /*
-- 
cgit