From c3490a2ee49757adc19e4d61835df8602903bda3 Mon Sep 17 00:00:00 2001
From: Michael Witrant <mike@lepton.fr>
Date: Sat, 6 Jul 2013 19:33:07 +0200
Subject: [PATCH] Added LibOVR finder and Linux support, ref #43

---
 code/CMakeModules/FindLibOVR.cmake | 60 ++++++++++++++++++++++++++++++
 code/nel/CMakeLists.txt            |  2 +
 code/nel/src/3d/CMakeLists.txt     |  6 ++-
 3 files changed, 66 insertions(+), 2 deletions(-)
 create mode 100644 code/CMakeModules/FindLibOVR.cmake

diff --git a/code/CMakeModules/FindLibOVR.cmake b/code/CMakeModules/FindLibOVR.cmake
new file mode 100644
index 000000000..0ef4e1f47
--- /dev/null
+++ b/code/CMakeModules/FindLibOVR.cmake
@@ -0,0 +1,60 @@
+# - Locate LibOVR library
+# This module defines
+#  LIBOVR_LIBRARIES, the libraries to link against
+#  LIBOVR_FOUND, if false, do not try to link to LIBOVR
+#  LIBOVR_INCLUDE_DIR, where to find headers.
+
+IF(LIBOVR_LIBRARIES AND LIBOVR_INCLUDE_DIR)
+  # in cache already
+  SET(LIBOVR_FIND_QUIETLY TRUE)
+ENDIF(LIBOVR_LIBRARIES AND LIBOVR_INCLUDE_DIR)
+
+FIND_PATH(LIBOVR_INCLUDE_DIR
+  OVR.h
+  PATHS
+  $ENV{LIBOVR_DIR}/Include
+  /usr/local/include
+  /usr/include
+  /sw/include
+  /opt/local/include
+  /opt/csw/include
+  /opt/include
+)
+
+IF(TARGET_CPU STREQUAL "x86_64")
+  SET(LIBOVR_LIBRARY_BUILD_PATH "Lib/Linux/Release/x86_64")
+ELSE(TARGET_CPU STREQUAL "x86_64")
+  SET(LIBOVR_LIBRARY_BUILD_PATH "Lib/Linux/Release/i386")
+ENDIF(TARGET_CPU STREQUAL "x86_64")
+
+FIND_LIBRARY(LIBOVR_LIBRARY
+  NAMES ovr
+  PATHS
+  $ENV{LIBOVR_DIR}/${LIBOVR_LIBRARY_BUILD_PATH}
+  /usr/local/lib
+  /usr/lib
+  /usr/local/X11R6/lib
+  /usr/X11R6/lib
+  /sw/lib
+  /opt/local/lib
+  /opt/csw/lib
+  /opt/lib
+  /usr/freeware/lib64
+)
+
+IF(LIBOVR_LIBRARY AND LIBOVR_INCLUDE_DIR)
+  IF(NOT LIBOVR_FIND_QUIETLY)
+    MESSAGE(STATUS "Found LibOVR: ${LIBOVR_LIBRARY}")
+  ENDIF(NOT LIBOVR_FIND_QUIETLY)
+  SET(LIBOVR_FOUND "YES")
+  SET(LIBOVR_DEFINITIONS "-DHAVE_LIBOVR")
+  IF(UNIX)
+    SET(LIBOVR_LIBRARIES ${LIBOVR_LIBRARY} X11 Xinerama udev pthread)
+  ELSE(UNIX)
+    SET(LIBOVR_LIBRARIES ${LIBOVR_LIBRARY})
+  ENDIF(UNIX)
+ELSE(LIBOVR_LIBRARY AND LIBOVR_INCLUDE_DIR)
+  IF(NOT LIBOVR_FIND_QUIETLY)
+    MESSAGE(STATUS "Warning: Unable to find LibOVR!")
+  ENDIF(NOT LIBOVR_FIND_QUIETLY)
+ENDIF(LIBOVR_LIBRARY AND LIBOVR_INCLUDE_DIR)
diff --git a/code/nel/CMakeLists.txt b/code/nel/CMakeLists.txt
index 745278cd7..1ac54f332 100644
--- a/code/nel/CMakeLists.txt
+++ b/code/nel/CMakeLists.txt
@@ -41,6 +41,8 @@ IF(WITH_GTK)
   FIND_PACKAGE(GTK2)
 ENDIF(WITH_GTK)
 
+FIND_PACKAGE(LibOVR)
+
 IF(WITH_INSTALL_LIBRARIES)
   IF(UNIX)
     SET(prefix ${CMAKE_INSTALL_PREFIX})
diff --git a/code/nel/src/3d/CMakeLists.txt b/code/nel/src/3d/CMakeLists.txt
index ffdc876a9..b92f58dba 100644
--- a/code/nel/src/3d/CMakeLists.txt
+++ b/code/nel/src/3d/CMakeLists.txt
@@ -701,9 +701,9 @@ SOURCE_GROUP(Stereo FILES
 
 NL_TARGET_LIB(nel3d ${HEADERS} ${SRC})
 
-INCLUDE_DIRECTORIES(${LIBXML2_INCLUDE_DIR} ${FREETYPE_INCLUDE_DIRS})
+INCLUDE_DIRECTORIES(${LIBXML2_INCLUDE_DIR} ${FREETYPE_INCLUDE_DIRS} ${LIBOVR_INCLUDE_DIR})
 
-TARGET_LINK_LIBRARIES(nel3d nelmisc ${FREETYPE_LIBRARY})
+TARGET_LINK_LIBRARIES(nel3d nelmisc ${FREETYPE_LIBRARY} ${LIBOVR_LIBRARIES})
 SET_TARGET_PROPERTIES(nel3d PROPERTIES LINK_INTERFACE_LIBRARIES "")
 NL_DEFAULT_PROPS(nel3d "NeL, Library: NeL 3D")
 NL_ADD_RUNTIME_FLAGS(nel3d)
@@ -713,6 +713,8 @@ NL_ADD_LIB_SUFFIX(nel3d)
 
 ADD_DEFINITIONS(${LIBXML2_DEFINITIONS})
 
+ADD_DEFINITIONS(${LIBOVR_DEFINITIONS})
+
 IF(WITH_PCH)
   ADD_NATIVE_PRECOMPILED_HEADER(nel3d ${CMAKE_CURRENT_SOURCE_DIR}/std3d.h ${CMAKE_CURRENT_SOURCE_DIR}/std3d.cpp)
 ENDIF(WITH_PCH)