cmake_modules/FindOggVorbis.cmake
author Wuzzy <Wuzzy2@mail.ru>
Sat, 06 Jun 2020 15:40:51 +0200
changeset 15597 6e72bd61002e
parent 8667 f93cc19d8b98
permissions -rw-r--r--
Disable gfMoreWind for land objects on turn end only after a fixed-time delay 15s sounds much, but it's the average amount for gfMineStrike mines to settle naturally. And it would be very confusing to see falling mines suddenly not caring about gfMoreWind for no apparent reason. Note this whole thing is a giant hack anyway, to prevent a turn being blocked by infinitely bouncing mines. The better solution would be to help gfMoreWind-affected land objects settle naturally more reliably even under extreme wind. But this commit is "good enough" for now. If you don't like the delay, you can always tweak the constant.

# - Try to find the OggVorbis libraries
# Once done this will define
#
#  OGGVORBIS_FOUND       - system has both Ogg and Vorbis
#  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
#  OGG_INCLUDE_DIR       - the Ogg include directory
#  VORBIS_LIBRARY        - the Vorbis library
#  VORBIS_INCLUDE_DIR    - the Vorbis include directory
#  VORBISFILE_LIBRARY    - the VorbisFile library
#
# Copyright (c) 2006, Richard Laerkaeng <richard@goteborg.utfors.se>
# Copyright (c) 2013, Vittorio Giovara <vittorio.giovara@gmail.com>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.

### sommer [SuperTux]
##  - Removed unused vorbisenc library
##  - reversed order of libraries, so that cmake 2.4.5 for Windows generates an MSYS Makefile that will link correctly

### koda [Hedgewars]
##  - split ogg and vorbis lookup
##  - special case for framework handling
##  - standard variables handling


include (CheckLibraryExists)
include (FindPackageHandleStandardArgs)

find_path(OGG_INCLUDE_DIR ogg.h PATH_SUFFIXES ogg)
find_path(VORBIS_INCLUDE_DIR vorbisfile.h PATH_SUFFIXES vorbis)

find_library(OGG_LIBRARY NAMES Ogg ogg)
find_library(VORBIS_LIBRARY NAMES Vorbis vorbis)
find_library(VORBISFILE_LIBRARY NAMES vorbisfile)

set(_CMAKE_REQUIRED_LIBRARIES_TMP ${CMAKE_REQUIRED_LIBRARIES})
set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${OGGVORBIS_LIBRARIES})
check_library_exists(${VORBIS_LIBRARY} 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)

if(${OGG_LIBRARY} MATCHES ".framework" AND ${VORBIS_LIBRARY} MATCHES ".framework")
    set(VORBISFILE_LIBRARY "") #vorbisfile will appear as NOTFOUND and discarded
    set(fphsa_vorbis_list VORBIS_LIBRARY)
else()
    set(fphsa_vorbis_list VORBISFILE_LIBRARY VORBIS_LIBRARY)
endif()

find_package_handle_standard_args(OggVorbis DEFAULT_MSG ${fphsa_vorbis_list} OGG_LIBRARY
                                                        OGG_INCLUDE_DIR VORBIS_INCLUDE_DIR)
unset(fphsa_vorbis_list)

set(OGGVORBIS_LIBRARIES ${VORBISFILE_LIBRARY} ${VORBIS_LIBRARY} ${OGG_LIBRARY})
set(OGGVORBIS_INCLUDE_DIR ${VORBIS_INCLUDE_DIR} ${OGG_INCLUDE_DIR})

mark_as_advanced(OGGVORBIS_VERSION OGGVORBIS_INCLUDE_DIR OGGVORBIS_LIBRARIES
                 OGG_LIBRARY OGG_INCLUDE_DIR VORBIS_LIBRARY VORBIS_INCLUDE_DIR VORBISFILE_LIBRARY)