From 658eb6a8b3cff0da59a61cbb5aa04d2c693c36c3 Mon Sep 17 00:00:00 2001
From: chamnit <chamnit@Masamune.local>
Date: Tue, 26 Jul 2016 13:16:43 -0600
Subject: [PATCH] Non-CoreXY compiling fix.

---
 doc/log/commit_log_v0.9j.txt | 11 +++++++++++
 grbl/system.c                | 18 ++++++++++--------
 grbl/system.h                |  6 ++++--
 3 files changed, 25 insertions(+), 10 deletions(-)

diff --git a/doc/log/commit_log_v0.9j.txt b/doc/log/commit_log_v0.9j.txt
index 3dd0526..e6569c3 100644
--- a/doc/log/commit_log_v0.9j.txt
+++ b/doc/log/commit_log_v0.9j.txt
@@ -1,3 +1,14 @@
+----------------
+Date: 2016-07-26
+Author: chamnit
+Subject: Fixed homing on CoreXY machines only.
+
+- The homing routine for CoreXY/H-Bot CNC machines has been fixed.
+
+- Version date bumped, but this update does NOT effect any normal
+users. Only CoreXY users.
+
+
 ----------------
 Date: 2016-07-26
 Author: chamnit
diff --git a/grbl/system.c b/grbl/system.c
index 854221e..48aac64 100644
--- a/grbl/system.c
+++ b/grbl/system.c
@@ -289,12 +289,14 @@ void system_convert_array_steps_to_mpos(float *position, int32_t *steps)
 
 
 // CoreXY calculation only. Returns x or y-axis "steps" based on CoreXY motor steps.
-int32_t system_convert_corexy_to_x_axis_steps(int32_t *steps)
-{
-  return( (steps[A_MOTOR] + steps[B_MOTOR])/2 );
-}
-int32_t system_convert_corexy_to_y_axis_steps(int32_t *steps)
-{
-  return( (steps[A_MOTOR] - steps[B_MOTOR])/2 );
-}
+#ifdef COREXY
+  int32_t system_convert_corexy_to_x_axis_steps(int32_t *steps)
+  {
+    return( (steps[A_MOTOR] + steps[B_MOTOR])/2 );
+  }
+  int32_t system_convert_corexy_to_y_axis_steps(int32_t *steps)
+  {
+    return( (steps[A_MOTOR] - steps[B_MOTOR])/2 );
+  }
+#endif
 
diff --git a/grbl/system.h b/grbl/system.h
index 09a3171..d523eb5 100644
--- a/grbl/system.h
+++ b/grbl/system.h
@@ -107,7 +107,9 @@ float system_convert_axis_steps_to_mpos(int32_t *steps, uint8_t idx);
 void system_convert_array_steps_to_mpos(float *position, int32_t *steps);
 
 // CoreXY calculation only. Returns x or y-axis "steps" based on CoreXY motor steps.
-int32_t system_convert_corexy_to_x_axis_steps(int32_t *steps);
-int32_t system_convert_corexy_to_y_axis_steps(int32_t *steps);
+#ifdef COREXY
+  int32_t system_convert_corexy_to_x_axis_steps(int32_t *steps);
+  int32_t system_convert_corexy_to_y_axis_steps(int32_t *steps);
+#endif
 
 #endif