From 0731be3d0789b6a313be212988e5b1c74c8a366d Mon Sep 17 00:00:00 2001
From: Dmitry Marakasov <amdmi3@amdmi3.ru>
Date: Tue, 1 Jun 2010 04:01:43 +0400
Subject: [PATCH] Properly detect dependencies

---
 CMakeLists.txt            |   13 ++++++-
 cmake/FindOggVorbis.cmake |   91 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 103 insertions(+), 1 deletions(-)
 create mode 100644 cmake/FindOggVorbis.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e6c3387..2425aab 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,17 @@ cmake_minimum_required(VERSION 2.6)
 
 project(Gish C)
 
-link_libraries(SDL GL openal vorbisfile)
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
+
+option(GISH_DATA_PATH "./" CACHE STRING "Path to gish data files")
+
+find_package(SDL REQUIRED)
+find_package(OpenGL REQUIRED)
+find_package(OpenAL REQUIRED)
+find_package(OggVorbis REQUIRED)
+
+include_directories(${SDL_INCLUDE_DIR} ${OPENGL_INCLUDE_DIR} ${OPENAL_INCLUDE_DIR} ${VORBIS_INCLUDE_DIR})
+
+link_libraries(${SDL_LIBRARY} ${OPENGL_gl_LIBRARY} ${OPENAL_LIBRARY} ${VORBISFILE_LIBRARY})
 
 add_executable(gish main.c)
diff --git a/cmake/FindOggVorbis.cmake b/cmake/FindOggVorbis.cmake
new file mode 100644
index 0000000..8f90b9d
--- /dev/null
+++ b/cmake/FindOggVorbis.cmake
@@ -0,0 +1,91 @@
+# - Try to find the OggVorbis libraries
+# Once done this will define
+#
+#  OGGVORBIS_FOUND - system has OggVorbis
+#  OGGVORBIS_VERSION - set either to 1 or 2
+#  OGGVORBIS_INCLUDE_DIR - the OggVorbis include directory
+#  OGGVORBIS_LIBRARIES - The libraries needed to use OggVorbis
+#  OGG_LIBRARY         - The Ogg library
+#  VORBIS_LIBRARY      - The Vorbis library
+#  VORBISFILE_LIBRARY  - The VorbisFile library
+#  VORBISENC_LIBRARY   - The VorbisEnc library
+
+# Copyright (c) 2006, Richard Laerkaeng, <richard@goteborg.utfors.se>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+
+include (CheckLibraryExists)
+
+find_path(VORBIS_INCLUDE_DIR vorbis/vorbisfile.h)
+find_path(OGG_INCLUDE_DIR ogg/ogg.h)
+
+find_library(OGG_LIBRARY NAMES ogg)
+find_library(VORBIS_LIBRARY NAMES vorbis)
+find_library(VORBISFILE_LIBRARY NAMES vorbisfile)
+find_library(VORBISENC_LIBRARY NAMES vorbisenc)
+
+mark_as_advanced(VORBIS_INCLUDE_DIR OGG_INCLUDE_DIR
+                 OGG_LIBRARY VORBIS_LIBRARY VORBISFILE_LIBRARY VORBISENC_LIBRARY)
+
+
+if (VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY AND VORBISENC_LIBRARY)
+   set(OGGVORBIS_FOUND TRUE)
+
+   set(OGGVORBIS_LIBRARIES ${OGG_LIBRARY} ${VORBIS_LIBRARY} ${VORBISFILE_LIBRARY} ${VORBISENC_LIBRARY})
+
+   set(_CMAKE_REQUIRED_LIBRARIES_TMP ${CMAKE_REQUIRED_LIBRARIES})
+   set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${OGGVORBIS_LIBRARIES})
+   check_library_exists(vorbis vorbis_bitrate_addblock "" HAVE_LIBVORBISENC2)
+   set(CMAKE_REQUIRED_LIBRARIES ${_CMAKE_REQUIRED_LIBRARIES_TMP})
+
+   if (HAVE_LIBVORBISENC2)
+      set (OGGVORBIS_VERSION 2)
+   else (HAVE_LIBVORBISENC2)
+      set (OGGVORBIS_VERSION 1)
+   endif (HAVE_LIBVORBISENC2)
+
+else (VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY AND VORBISENC_LIBRARY)
+   set (OGGVORBIS_VERSION)
+   set(OGGVORBIS_FOUND FALSE)
+endif (VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY AND VORBISENC_LIBRARY)
+
+
+if (OGGVORBIS_FOUND)
+   if (NOT OggVorbis_FIND_QUIETLY)
+      message(STATUS "Found OggVorbis: ${OGGVORBIS_LIBRARIES}")
+   endif (NOT OggVorbis_FIND_QUIETLY)
+else (OGGVORBIS_FOUND)
+   if (OggVorbis_FIND_REQUIRED)
+      message(FATAL_ERROR "Could NOT find OggVorbis libraries")
+   endif (OggVorbis_FIND_REQUIRED)
+   if (NOT OggVorbis_FIND_QUITELY)
+      message(STATUS "Could NOT find OggVorbis libraries")
+   endif (NOT OggVorbis_FIND_QUITELY)
+endif (OGGVORBIS_FOUND)
+
+#check_include_files(vorbis/vorbisfile.h HAVE_VORBISFILE_H)
+#check_library_exists(ogg ogg_page_version "" HAVE_LIBOGG)
+#check_library_exists(vorbis vorbis_info_init "" HAVE_LIBVORBIS)
+#check_library_exists(vorbisfile ov_open "" HAVE_LIBVORBISFILE)
+#check_library_exists(vorbisenc vorbis_info_clear "" HAVE_LIBVORBISENC)
+#check_library_exists(vorbis vorbis_bitrate_addblock "" HAVE_LIBVORBISENC2)
+
+#if (HAVE_LIBOGG AND HAVE_VORBISFILE_H AND HAVE_LIBVORBIS AND HAVE_LIBVORBISFILE AND HAVE_LIBVORBISENC)
+#    message(STATUS "Ogg/Vorbis found")
+#    set (VORBIS_LIBS "-lvorbis")
+#    set (OGG_LIBS "-logg")
+#    set (VORBISFILE_LIBS "-lvorbisfile")
+#    set (VORBISENC_LIBS "-lvorbisenc")
+#    set (OGGVORBIS_FOUND TRUE)
+#    if (HAVE_LIBVORBISENC2)
+#        set (HAVE_VORBIS 2)
+#    else (HAVE_LIBVORBISENC2)
+#        set (HAVE_VORBIS 1)
+#    endif (HAVE_LIBVORBISENC2)
+#else (HAVE_LIBOGG AND HAVE_VORBISFILE_H AND HAVE_LIBVORBIS AND HAVE_LIBVORBISFILE AND HAVE_LIBVORBISENC)
+#    message(STATUS "Ogg/Vorbis not found")
+#endif (HAVE_LIBOGG AND HAVE_VORBISFILE_H AND HAVE_LIBVORBIS AND HAVE_LIBVORBISFILE AND HAVE_LIBVORBISENC)
+
+
-- 
1.7.1