cmake/FindLibEV.cmake

   1
   2 set(LIBEV_PATH "" CACHE PATH "Base path for include/ev.h and lib/libev*")
   3 set(LIBEV_INCLUDE_PATH "" CACHE PATH "Include path for ev.h")
   4 set(LIBEV_LIBDIR "" CACHE PATH "Path containing libev")
   5
   6 if(LIBEV_PATH)
   7         set(LIBEV_INCLUDE_PATH "${LIBEV_PATH}/include" CACHE PATH "Include path for ev.h" FORCE)
   8         set(LIBEV_LIBDIR "${LIBEV_PATH}/lib" CACHE PATH "Path containing libev" FORCE)
   9 endif()
  10
  11 if(LIBEV_INCLUDE_PATH)
  12         include_directories(${LIBEV_INCLUDE_PATH})
  13 endif()
  14
  15 # Use cached result
  16 if(NOT LIBEV_FOUND)
  17         unset(HAVE_EV_H)
  18         unset(HAVE_LIBEV)
  19         unset(HAVE_EV_H CACHE)
  20         unset(HAVE_LIBEV CACHE)
  21         unset(LIBEV_CFLAGS)
  22         unset(LIBEV_LDFLAGS)
  23
  24         if(LIBEV_INCLUDE_PATH OR LIBEV_LIBDIR)
  25                 set(CMAKE_REQUIRED_INCLUDES ${LIBEV_INCLUDE_PATH})
  26 #               message(STATUS "Looking for ev.h in ${CMAKE_REQUIRED_INCLUDES}")
  27                 check_include_files(ev.h HAVE_EV_H)
  28                 if(HAVE_EV_H)
  29 #                       message(STATUS "Looking for lib ev in ${LIBEV_LIBDIR}")
  30                         check_library_exists(ev ev_time "${LIBEV_LIBDIR}" HAVE_LIBEV)
  31                         if(HAVE_LIBEV)
  32                                 set(LIBEV_CFLAGS "" CACHE INTERNAL "")
  33                                 set(LIBEV_LDFLAGS "-L${LIBEV_LIBDIR} -lev" CACHE INTERNAL "")
  34                                 set(LIBEV_FOUND TRUE CACHE INTERNAL "Found libev")
  35                         else()
  36                                 message(STATUS "Couldn't find lib ev in ${LIBEV_LIBDIR}")
  37                         endif()
  38                 else()
  39                         message(STATUS "Couldn't find <ev.h> in ${LIBEV_INCLUDE_PATH}")
  40                 endif()
  41         else()
  42                 pkg_check_modules(LIBEV libev)
  43                 if(NOT LIBEV_FOUND)
  44 #                       message(STATUS "Looking for ev.h in ${CMAKE_REQUIRED_INCLUDES}")
  45                         check_include_files(ev.h HAVE_EV_H)
  46                         if(HAVE_EV_H)
  47 #                               message(STATUS "Looking for lib ev")
  48                                 check_library_exists(ev ev_time "" HAVE_LIBEV)
  49                                 if(HAVE_LIBEV)
  50                                         set(LIBEV_CFLAGS "" CACHE INTERNAL "")
  51                                         set(LIBEV_LDFLAGS "-lev" CACHE INTERNAL "")
  52                                         set(LIBEV_FOUND TRUE CACHE INTERNAL "Found libev")
  53                                 else()
  54                                         message(STATUS "Couldn't find lib ev")
  55                                 endif()
  56                         else()
  57                                 message(STATUS "Couldn't find <ev.h>")
  58                         endif()
  59                 endif()
  60         endif()
  61
  62 endif()
  63
  64 if(NOT LIBEV_FOUND)
  65         if(LibEV_FIND_REQUIRED)
  66                 message(FATAL_ERROR "Could not find libev")
  67         endif()
  68 endif()
  69
  70 mark_as_advanced(LIBEV_PATH LIBEV_INCLUDE_PATH LIBEV_LIBDIR)