[boost] [pool] Making it honour BOOST_HAS_THREADS

From: Markus Schöpflin (markus.schoepflin_at_[hidden])
Date: 2005-04-28 06:45:49

Hello,

attached is a patch which makes the pool library honour the general boost 
threading support flag. As a side effect, it also makes the pool library 
usable on Tru64 because on that platform you can only include <pthread.h> 
if you're actually compiling with -pthread.

Any objections to applying this patch, anyone?

Markus

Index: mutex.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/pool/detail/mutex.hpp,v
retrieving revision 1.6
diff -u -r1.6 mutex.hpp
--- mutex.hpp	28 Sep 2004 12:55:44 -0000	1.6
+++ mutex.hpp	28 Apr 2005 11:41:20 -0000
@@ -19,6 +19,10 @@
 #define BOOST_MUTEX_HELPER_WIN32        1
 #define BOOST_MUTEX_HELPER_PTHREAD      2
 
+#if !defined(BOOST_HAS_THREADS) && !defined(BOOST_NO_MT)
+# define BOOST_NO_MT
+#endif
+
 #ifdef BOOST_NO_MT
   // No multithreading -> make locks into no-ops
   #define BOOST_MUTEX_HELPER BOOST_MUTEX_HELPER_NONE
@@ -37,12 +41,13 @@
   #error Unable to determine platform mutex type; define BOOST_NO_MT to assume single-threaded
 #endif
 
-
-#ifdef BOOST_WINDOWS
-  #include <windows.h>
-#endif
-#ifdef _POSIX_THREADS
-  #include <pthread.h>
+#ifndef BOOST_NO_MT
+# ifdef BOOST_WINDOWS
+#  include <windows.h>
+# endif
+# ifdef _POSIX_THREADS
+#  include <pthread.h>
+# endif
 #endif
 
 namespace boost {
@@ -50,6 +55,8 @@
 namespace details {
 namespace pool {
 
+#ifndef BOOST_NO_MT
+
 #ifdef BOOST_WINDOWS
 
 class win32_mutex
@@ -102,6 +109,8 @@
 
 #endif // defined(_POSIX_THREADS)
 
+#endif // !defined(BOOST_NO_MT)
+
 class null_mutex
 {
   private: