mysqlfs/FindLibM.cmake at DEV · platform9/mysqlfs · GitHub

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##  FindLibM.cmake:
##  Check for the presence of the LibM headers and libraries
##  AF, 2011-10-26
##
##  Copyright 2010-2013 AstroFloyd - astrofloyd.org
##
##  This file is part of the CMakeFiles package,
##  see: http://cmakefiles.sf.net/
##
##  This is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published
##  by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
##
##  This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
##
##  You should have received a copy of the GNU General Public License along with this code.  If not, see
##  <http://www.gnu.org/licenses/>.
##
##
##  This CMake module defines the following variables:
##    LibM_FOUND        =  Libraries and headers found; TRUE/FALSE
##    LibM_INCLUDES     =  Path to the LibM header files
##    LibM_LIBRARIES    =  Path to all parts of the LibM libraries
##    LibM_LIBRARY_DIR  =  Path to the directory containing the LibM libraries


# Standard locations where to look for required components:
include( CMakeLocations )


# Check for the header files:
find_path( LibM_INCLUDES
  NAMES math.h
  PATHS ${include_locations} ${lib_locations}
  PATH_SUFFIXES
  )
#set( LibM_INCLUDES TRUE )


# Check for the libraries:
set( LibM_LIBRARIES "" )

find_library( LibM_LIBRARY
  NAMES m
  PATHS ${lib_locations}
  #PATH_SUFFIXES
  NO_DEFAULT_PATH
  )

# Libraries found?
if( LibM_LIBRARY )

  list( APPEND LibM_LIBRARIES ${LibM_LIBRARY} )
  get_filename_component( LibM_LIBRARY_DIR ${LibM_LIBRARY} PATH )

endif( LibM_LIBRARY )


# Headers AND libraries found?
if( LibM_INCLUDES AND LibM_LIBRARIES )

  # yes!
  set( LibM_FOUND TRUE )

else( LibM_INCLUDES AND LibM_LIBRARIES )

  # no!
  set( LibM_FOUND FALSE )

  if( NOT LibM_FIND_QUIETLY )
    if( NOT LibM_INCLUDES )
      message( STATUS "!! Unable to find LibM header files!" )
    endif( NOT LibM_INCLUDES )
    if( NOT LibM_LIBRARIES )
      message( STATUS "!! Unable to find LibM library files!" )
    endif( NOT LibM_LIBRARIES )
  endif( NOT LibM_FIND_QUIETLY )

endif( LibM_INCLUDES AND LibM_LIBRARIES )


# Headers AND libraries found!
if( LibM_FOUND )

  if( NOT LibM_FIND_QUIETLY )
    message( STATUS "" )
    message( STATUS "Found components for LibM:" )
    message( STATUS "* LibM_INCLUDES  = ${LibM_INCLUDES}" )
    message( STATUS "* LibM_LIBRARIES = ${LibM_LIBRARIES}" )
  endif( NOT LibM_FIND_QUIETLY )

else( LibM_FOUND )

  if( LibM_FIND_REQUIRED )
    message( FATAL_ERROR "!! Could not find LibM headers or libraries!" )
  endif( LibM_FIND_REQUIRED )

endif( LibM_FOUND )


# Mark as advanced options in ccmake:
mark_as_advanced(
  LibM_INCLUDES
  LibM_LIBRARIES
  LibM_LIBRARY
  LibM_LIBRARY_DIR
  )