obs-studio/cmake/Modules/FindJack.cmake

# * Try to find jack-2.6 Once done this will define
#
# JACK_FOUND - system has jack JACK_INCLUDE_DIRS - the jack include directory
# JACK_LIBRARIES - Link these to use jack JACK_DEFINITIONS - Compiler switches
# required for using jack
#
# Copyright (c) 2008 Andreas Schneider <[email protected]> Modified for other
# libraries by Lasse Kärkkäinen <tronic>
#
# Redistribution and use is allowed according to the terms of the New BSD
# license. For details see the accompanying COPYING-CMAKE-SCRIPTS file.
#

if(JACK_LIBRARIES AND JACK_INCLUDE_DIRS)
  # in cache already
  set(JACK_FOUND TRUE)
else(JACK_LIBRARIES AND JACK_INCLUDE_DIRS)
  # use pkg-config to get the directories and then use these values in the
  # FIND_PATH() and FIND_LIBRARY() calls
  if(${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
    include(UsePkgConfig)
    pkgconfig(jack _JACK_INCLUDEDIR _JACK_LIBDIR _JACK_LDFLAGS _JACK_CFLAGS)
  else(${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
    find_package(PkgConfig)
    if(PKG_CONFIG_FOUND)
      pkg_check_modules(_JACK jack)
    endif(PKG_CONFIG_FOUND)
  endif(${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
  find_path(
    JACK_INCLUDE_DIR
    NAMES jack/jack.h
    PATHS ${_JACK_INCLUDE_DIRS} /usr/include /usr/local/include
          /opt/local/include /sw/include)

  find_library(
    JACK_LIBRARY
    NAMES jack
    PATHS ${_JACK_LIBRARY_DIRS} /usr/lib /usr/local/lib /opt/local/lib /sw/lib)

  if(JACK_LIBRARY AND JACK_INCLUDE_DIR)
    set(JACK_FOUND TRUE)

    set(JACK_INCLUDE_DIRS ${JACK_INCLUDE_DIR})

    set(JACK_LIBRARIES ${JACK_LIBRARIES} ${JACK_LIBRARY})

  endif(JACK_LIBRARY AND JACK_INCLUDE_DIR)

  if(JACK_FOUND)
    if(NOT JACK_FIND_QUIETLY)
      message(STATUS "Found jack: ${JACK_LIBRARY}")
    endif(NOT JACK_FIND_QUIETLY)

    if(NOT TARGET Jack::Jack)
      if(IS_ABSOLUTE "${JACK_LIBRARIES}")
        add_library(Jack::Jack UNKNOWN IMPORTED)
        set_target_properties(Jack::Jack PROPERTIES IMPORTED_LOCATION
                                                    "${JACK_LIBRARIES}")
      else()
        add_library(Jack::Jack INTERFACE IMPORTED)
        set_target_properties(Jack::Jack PROPERTIES IMPORTED_LIBNAME
                                                    "${JACK_LIBRARIES}")
      endif()

      set_target_properties(Jack::Jack PROPERTIES INTERFACE_INCLUDE_DIRECTORIES
                                                  "${JACK_INCLUDE_DIRS}")
    endif()
  else(JACK_FOUND)
    if(JACK_FIND_REQUIRED)
      message(FATAL_ERROR "Could not find JACK")
    endif(JACK_FIND_REQUIRED)
  endif(JACK_FOUND)

  # show the JACK_INCLUDE_DIRS and JACK_LIBRARIES variables only in the advanced
  # view
  mark_as_advanced(JACK_INCLUDE_DIRS JACK_LIBRARIES)

endif(JACK_LIBRARIES AND JACK_INCLUDE_DIRS)