qzdoom/cmake/FindMPG123.cmake

# - Find mpg123
# Find the native mpg123 includes and library
#
#  MPG123_INCLUDE_DIR - where to find mpg123.h
#  MPG123_LIBRARIES   - List of libraries when using mpg123.
#  MPG123_FOUND       - True if mpg123 found.

IF(MPG123_INCLUDE_DIR AND MPG123_LIBRARIES)
  # Already in cache, be silent
  SET(MPG123_FIND_QUIETLY TRUE)
ENDIF(MPG123_INCLUDE_DIR AND MPG123_LIBRARIES)

FIND_PATH(MPG123_INCLUDE_DIR mpg123.h
          PATHS "${MPG123_DIR}"
          PATH_SUFFIXES include
          )

FIND_LIBRARY(MPG123_LIBRARIES NAMES mpg123 mpg123-0
             PATHS "${MPG123_DIR}"
             PATH_SUFFIXES lib
             )

# MARK_AS_ADVANCED(MPG123_LIBRARIES MPG123_INCLUDE_DIR)

# handle the QUIETLY and REQUIRED arguments and set MPG123_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(MPG123 DEFAULT_MSG MPG123_LIBRARIES MPG123_INCLUDE_DIR)