From bc8d3db324f26d95384b8876e0d13eb434b2de93 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sat, 17 Oct 2009 09:40:49 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1227
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/kernel/include/condvars.h  | 11 +++++++++--
 os/kernel/include/mailboxes.h |  7 +++++++
 os/kernel/include/queues.h    |  7 +++++++
 3 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/os/kernel/include/condvars.h b/os/kernel/include/condvars.h
index 9ef977059..2318ecf6e 100644
--- a/os/kernel/include/condvars.h
+++ b/os/kernel/include/condvars.h
@@ -31,7 +31,14 @@
 #ifndef _CONDVARS_H_
 #define _CONDVARS_H_
 
-#if CH_USE_CONDVARS && CH_USE_MUTEXES
+#if CH_USE_CONDVARS
+
+/*
+ * Module dependancies check.
+ */
+#if !CH_USE_MUTEXES
+#error "CH_USE_CONDVARS requires CH_USE_MUTEXES"
+#endif
 
 /**
  * @brief CondVar structure.
@@ -73,7 +80,7 @@ extern "C" {
  */
 #define CONDVAR_DECL(name) CondVar name = _CONDVAR_DATA(name)
 
-#endif /* CH_USE_CONDVARS && CH_USE_MUTEXES */
+#endif /* CH_USE_CONDVARS */
 
 #endif /* _CONDVARS_H_ */
 
diff --git a/os/kernel/include/mailboxes.h b/os/kernel/include/mailboxes.h
index 9e795590b..959d1ce37 100644
--- a/os/kernel/include/mailboxes.h
+++ b/os/kernel/include/mailboxes.h
@@ -29,6 +29,13 @@
 
 #if CH_USE_MAILBOXES
 
+/*
+ * Module dependancies check.
+ */
+#if !CH_USE_SEMAPHORES
+#error "CH_USE_MAILBOXES requires CH_USE_SEMAPHORES"
+#endif
+
 typedef struct {
   msg_t                 *mb_buffer;     /**< Pointer to the mailbox buffer.*/
   msg_t                 *mb_top;        /**< Pointer to the first location
diff --git a/os/kernel/include/queues.h b/os/kernel/include/queues.h
index 1c32d3d7d..9082ea5f7 100644
--- a/os/kernel/include/queues.h
+++ b/os/kernel/include/queues.h
@@ -27,6 +27,13 @@
 #ifndef _QUEUES_H_
 #define _QUEUES_H_
 
+/*
+ * Module dependancies check.
+ */
+#if !CH_USE_SEMAPHORES
+#error "CH_USE_QUEUES requires CH_USE_SEMAPHORES"
+#endif
+
 /** Queue notification callback type. */
 typedef void (*qnotify_t)(void);
 
-- 
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