From 85c4f9f2eee25493001d62ca911d6d4bb89ca6a6 Mon Sep 17 00:00:00 2001
From: Nigel Stewart <nigels@users.sourceforge.net>
Date: Sat, 10 Oct 2015 10:33:33 +1000
Subject: [PATCH] Add cmake support for Regal build mode.

---
 build/cmake/CMakeLists.txt | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/build/cmake/CMakeLists.txt b/build/cmake/CMakeLists.txt
index 425fffb..c8d4dd2 100644
--- a/build/cmake/CMakeLists.txt
+++ b/build/cmake/CMakeLists.txt
@@ -13,6 +13,7 @@ endif()
 set(CMAKE_DEBUG_POSTFIX d)
 
 option (BUILD_UTILS "utilities" ON)
+option (GLEW_REGAL "Regal mode" FALSE)
 option (GLEW_OSMESA "OSMesa mode" FALSE)
 
 set (GLEW_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../..)
@@ -42,7 +43,19 @@ set (GLEW_LIBRARIES ${OPENGL_LIBRARIES})
 
 add_definitions (-DGLEW_NO_GLU)
 
-#### OSMesa ####
+#### Regal mode ####
+
+if (GLEW_REGAL)
+  if (WIN32)
+    set (REGAL_LIB_NAME regal32)
+  else ()
+    set (REGAL_LIB_NAME Regal)
+  endif ()
+  add_definitions (-DGLEW_REGAL)
+  set (GLEW_LIBRARIES ${REGAL_LIB_NAME})
+endif ()
+
+#### OSMesa mode ####
 
 if (GLEW_OSMESA)
   if (WIN32)