git.m6w6.name Git - awesomized/libmemcached/blob - m4/ax_libevent.m4

   1 # https://github.com/BrianAker/ddm4
   2 # ===========================================================================
   3 #
   4 # SYNOPSIS
   5 #
   6 #   AX_LIBEVENT(), AX_LIBEVENT2(), AX_LIBEVENT2_EVHTTP()
   7 #
   8 # DESCRIPTION
   9 #
  10 #   libevent library
  11 #
  12 # LICENSE
  13 #
  14 #   Copyright (c) 2012 Brian Aker <brian@tangent.org>
  15 #
  16 #   Copying and distribution of this file, with or without modification, are
  17 #   permitted in any medium without royalty provided the copyright notice
  18 #   and this notice are preserved. This file is offered as-is, without any
  19 #   warranty.
  20
  21 #serial 2
  22
  23 AC_DEFUN([AX_LIBEVENT],
  24          [AC_PREREQ([2.63])dnl
  25          AC_CACHE_CHECK([test for a working libevent],[ax_cv_libevent],
  26                         [AX_SAVE_FLAGS
  27                         LIBS="-levent $LIBS"
  28                         AC_LANG_PUSH([C])
  29                         AC_RUN_IFELSE([
  30                                       AC_LANG_PROGRAM([
  31 #include <sys/types.h>
  32 #include <sys/time.h>
  33 #include <stdlib.h>
  34 #include <event.h>
  35                                                       ],[
  36                                                       struct event_base *tmp_event= event_init();
  37                                                       event_base_free(tmp_event);
  38                                                       ])],
  39                                       [ax_cv_libevent=yes],
  40                                       [ax_cv_libevent=no],
  41                                       [AC_MSG_WARN([test program execution failed])])
  42                         AC_LANG_POP
  43                         AX_RESTORE_FLAGS
  44                         ])
  45
  46          AS_IF([test "x$ax_cv_libevent" = "xyes"],
  47                [LIBEVENT_LDFLAGS="-levent"
  48                AC_SUBST(LIBEVENT_LDFLAGS)
  49                AC_DEFINE([HAVE_LIBEVENT],[1],[Define if event_init is present in event.h.])],
  50                [AC_DEFINE([HAVE_LIBEVENT],[0],[Define if event_init is present in event.h.])])
  51
  52          AM_CONDITIONAL(HAVE_LIBEVENT, test "x$ax_cv_libevent" = "xyes")
  53          ])
  54
  55   AC_DEFUN([AX_LIBEVENT2],
  56            [AC_REQUIRE([AX_LIBEVENT])
  57            AC_CACHE_CHECK([test for a working libevent version 2],[ax_cv_libevent2],
  58                           [AX_SAVE_FLAGS
  59                           LIBS="-levent $LIBS"
  60                           AC_LANG_PUSH([C])
  61                           AC_RUN_IFELSE([
  62                                         AC_LANG_PROGRAM([
  63 #include <sys/types.h>
  64 #include <sys/time.h>
  65 #include <stdlib.h>
  66 #include <event2/event.h>
  67                                                         ],[
  68                                                         struct event_base *tmp_event= event_init();
  69                                                         event_base_free(tmp_event);
  70                                                         ])],
  71                                         [ax_cv_libevent2=yes],
  72                                         [ax_cv_libevent2=no],
  73                                         [AC_MSG_WARN([test program execution failed])])
  74                           AC_LANG_POP
  75                           AX_RESTORE_FLAGS
  76                           ])
  77
  78            AS_IF([test "x$ax_cv_libevent2" = xyes],
  79                  [LIBEVENT2_LDFLAGS="-levent"
  80                  AC_SUBST(LIBEVENT2_LDFLAGS)
  81                  AC_DEFINE([HAVE_LIBEVENT2],[1],[Define if event_init is present in event2/event.h.])],
  82                  [AC_DEFINE([HAVE_LIBEVENT2],[0],[Define if event_init is present in event2/event.h.])])
  83
  84            AM_CONDITIONAL([HAVE_LIBEVENT2], [test "x$ax_cv_libevent2" = xyes])
  85            ])
  86
  87   AC_DEFUN([AX_LIBEVENT2_EVHTTP],
  88            [AC_REQUIRE([AX_LIBEVENT2])
  89            AC_CACHE_CHECK([test for a working libevent2 evhttp interface], [ax_cv_libevent2_evhttp],
  90                           [AX_SAVE_FLAGS
  91                           LIBS="-levent $LIBS"
  92                           AC_LANG_PUSH([C])
  93                           AC_RUN_IFELSE([
  94                                         AC_LANG_PROGRAM([
  95 #include <sys/types.h>
  96 #include <sys/time.h>
  97 #include <stdlib.h>
  98 #include <event2/event.h>
  99 #include <event2/http.h>
 100                                                         ],[
 101                                                         struct event_base *libbase= event_base_new();
 102                                                         struct evhttp *libsrvr= evhttp_new(libbase);
 103                                                         ])],
 104                                         [ax_cv_libevent2_evhttp=yes],
 105                                         [ax_cv_libevent2_evhttp=no],
 106                                         [AC_MSG_WARN([test program execution failed])])
 107                           AC_LANG_POP
 108                           AX_RESTORE_FLAGS
 109                           ])
 110
 111            AS_IF([test "x$ax_cv_libevent2_evhttp" = "xyes"],
 112                  [LIBEVENT2_LDFLAGS="-levent"
 113                  AC_SUBST(LIBEVENT2_LDFLAGS)
 114                  AC_DEFINE([HAVE_LIBEVENT2],[1],[Define if event_init is present in event2/event.h.])],
 115                  [AC_DEFINE([HAVE_LIBEVENT2],[0],[Define if event_init is present in event2/event.h.])])
 116
 117            AM_CONDITIONAL([HAVE_LIBEVENT2_EVHTTP],[test "x$ax_cv_libevent2_evhttp" = xyes])
 118            ])