OpenAL-soft: Re-apply megasource-specific changes its CMakeLists file.

CMakeLists.txt

@@ -231,6 +231,12 @@ set(MEGA_SDL2MAIN SDL2main)
 message(STATUS "-----------------------------------------------------")
 message(STATUS "Configuring: openal-soft ${MEGA_OPENAL_VER}")
 message(STATUS "-----------------------------------------------------")
+set(ALSOFT_UTILS OFF)
+set(ALSOFT_NO_CONFIG_UTIL ON)
+set(ALSOFT_EXAMPLES OFF)
+set(ALSOFT_INSTALL_CONFIG OFF)
+set(ALSOFT_INSTALL_HRTF_DATA OFF)
+set(ALSOFT_INSTALL_AMBDEC_PRESETS OFF)
 add_subdirectory("libs/openal-soft" ${CMAKE_BINARY_DIR}/openal-soft)
 set(MEGA_OPENAL ${OPENAL_LIB_NAME})
 

libs/openal-soft/CMakeLists.txt

@@ -1332,11 +1332,14 @@ set_target_properties(${IMPL_TARGET} PROPERTIES OUTPUT_NAME ${LIBNAME}
 target_compile_definitions(${IMPL_TARGET}
     PRIVATE AL_BUILD_LIBRARY AL_ALEXT_PROTOTYPES ${CPP_DEFS})
 target_compile_options(${IMPL_TARGET} PRIVATE ${C_FLAGS})
+target_include_directories(${IMPL_TARGET} PUBLIC include)
 
 if(TARGET build_version)
     add_dependencies(${IMPL_TARGET} build_version)
 endif()
 
+set(OPENAL_LIB_NAME ${IMPL_TARGET} PARENT_SCOPE)
+
 if(WIN32 AND MINGW AND ALSOFT_BUILD_IMPORT_LIB AND NOT LIBTYPE STREQUAL "STATIC")
     find_program(SED_EXECUTABLE NAMES sed DOC "sed executable")
     if(NOT SED_EXECUTABLE OR NOT CMAKE_DLLTOOL)
@@ -1611,3 +1614,7 @@ if(EXTRA_INSTALLS)
         LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
         ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
 endif()
+
+if(MEGA)
+    install(TARGETS ${IMPL_TARGET} RUNTIME DESTINATION . LIBRARY DESTINATION .)
+endif()