Use pkgconfig for cross-compiling to detect OpenAL

[lugaru.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e715fffff13334b6bc2366f9441b211b2c1ef105..a1ee5c868569de05e6d6a0078e8323ecdd8c20e1 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,7 @@
 project(lugaru)
 
 cmake_minimum_required(VERSION 3.5)
+cmake_policy(SET CMP0004 OLD)
 
 INCLUDE(FindPkgConfig)
 
@@ -186,16 +187,10 @@ endif (APPLE)
 # Deal with dependencies...
 find_package(OpenGL REQUIRED)
 # force this include dir no matter what on Windows, so we get sane headers.
-if(NOT WIN32)
-    option (LUGARU_FORCE_INTERNAL_OPENGL "Force internal OpenGL headers, even if there's a system version" True)
-    if (LUGARU_FORCE_INTERNAL_OPENGL)
-        include_directories("${DEPDIR}/OpenGL")
-    endif (LUGARU_FORCE_INTERNAL_OPENGL)
-endif(NOT WIN32)
-
-if(WIN32)
+option (LUGARU_FORCE_INTERNAL_OPENGL "Force internal OpenGL headers, even if there's a system version" True)
+if (LUGARU_FORCE_INTERNAL_OPENGL)
     include_directories("${DEPDIR}/OpenGL")
-endif(WIN32)
+endif (LUGARU_FORCE_INTERNAL_OPENGL)
 
 if(MSVC) # More Visual Studio annoyances
     include_directories("${DEPDIR}/msinttypes")
@@ -203,7 +198,16 @@ endif(MSVC)
 
 option (LUGARU_FORCE_INTERNAL_OPENAL "Force internal libOpenAL, even if there's a system version" False)
 if (NOT LUGARU_FORCE_INTERNAL_OPENAL)
-    find_package(OpenAL REQUIRED)
+    # FIXME: We should remove bundled libs and allow building OpenAL from source, for all platforms
+    if (WIN32)
+      if(CMAKE_CROSSCOMPILING)
+       pkg_check_modules(OpenAL openal)
+      else(CMAKE_CROSSCOMPILING)
+        find_package(OpenAL)
+      endif(CMAKE_CROSSCOMPILING)
+    else (WIN32)
+        find_package(OpenAL REQUIRED)
+    endif()
 else(NOT LUGARU_FORCE_INTERNAL_OPENAL)
     set(OPENAL_FOUND False)
 endif (NOT LUGARU_FORCE_INTERNAL_OPENAL)
@@ -234,7 +238,7 @@ if (NOT OPENAL_FOUND OR LUGARU_FORCE_INTERNAL_OPENAL)
     endif (NOT LUGARU_HAS_INTERNAL_OPENAL)
 endif (NOT OPENAL_FOUND OR LUGARU_FORCE_INTERNAL_OPENAL)
 
-PKG_SEARCH_MODULE(SDL2 REQUIRED sdl2)
+find_package(sdl2 REQUIRED)
 
 option (LUGARU_FORCE_INTERNAL_PNG "Force internal libPNG, even if there's a system version" False)
 if (NOT LUGARU_FORCE_INTERNAL_PNG)
@@ -445,7 +449,7 @@ include_directories(
     ${CMAKE_SOURCE_DIR}/Source
 )
 
-set(LUGARU_LIBS ${OPENAL_LIBRARY} ${PNG_LIBRARY} ${JPEG_LIBRARY} ${ZLIB_LIBRARIES} ${SDL2_LIBRARIES} ${OPENGL_glu_LIBRARY} ${VORBISFILE_LIBRARY} ${OGG_LIBRARY} ${PLATFORM_LIBS})
+set(LUGARU_LIBS ${OPENAL_LIBRARY} ${PNG_LIBRARY} ${JPEG_LIBRARY} ${ZLIB_LIBRARIES} ${SDL2_LIBRARIES} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} ${VORBISFILE_LIBRARY} ${OGG_LIBRARY} ${PLATFORM_LIBS})
 
 
 if(WIN32)