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

   1 # https://github.com/BrianAker/ddm4
   2 # ===========================================================================
   3 #
   4 # SYNOPSIS
   5 #
   6 #   AX_LIBEVENT([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
   7 #   AX_LIBEVENT2()
   8 #   AX_LIBEVENT2_EVHTTP()
   9 #
  10 # DESCRIPTION
  11 #
  12 #   libevent library
  13 #
  14 # LICENSE
  15 #
  16 #   Copyright (c) 2012 Brian Aker <brian@tangent.org>
  17 #
  18 #   Copying and distribution of this file, with or without modification, are
  19 #   permitted in any medium without royalty provided the copyright notice
  20 #   and this notice are preserved. This file is offered as-is, without any
  21 #   warranty.
  22
  23 #serial 4
  24
  25 AC_DEFUN([AX_LIBEVENT],
  26          [AC_PREREQ([2.63])dnl
  27          AC_CACHE_CHECK([test for a working libevent],[ax_cv_libevent],
  28            [AX_SAVE_FLAGS
  29            LIBS="-levent $LIBS"
  30            AC_LANG_PUSH([C])
  31            AC_RUN_IFELSE([AC_LANG_PROGRAM([
  32 #include <sys/types.h>
  33 #include <sys/time.h>
  34 #include <stdlib.h>
  35 #include <event.h>
  36                ],[
  37                struct event_base *tmp_event= event_init();
  38                event_base_free(tmp_event);
  39                ])],
  40              [ax_cv_libevent=yes],
  41              [ax_cv_libevent=no],
  42              [AC_MSG_WARN([test program execution failed])])
  43            AC_LANG_POP
  44            AX_RESTORE_FLAGS
  45            ])
  46
  47          AS_IF([test "x$ax_cv_libevent" = "xyes"],
  48              [AC_SUBST([LIBEVENT_LIB],[-levent])
  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$ax_cv_libevent" = "xyes")
  53 # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
  54          AS_IF([test "x$ax_cv_libevent" = xyes],
  55              [$1],
  56              [$2])
  57          ])
  58
  59 AC_DEFUN([AX_LIBEVENT2],
  60     [AC_REQUIRE([AX_LIBEVENT])
  61     AC_CACHE_CHECK([test for a working libevent version 2],[ax_cv_libevent2],
  62       [AX_SAVE_FLAGS
  63       LIBS="-levent $LIBS"
  64       AC_LANG_PUSH([C])
  65       AC_RUN_IFELSE([AC_LANG_PROGRAM([
  66 #include <sys/types.h>
  67 #include <sys/time.h>
  68 #include <stdlib.h>
  69 #include <event2/event.h>
  70           ],[
  71           struct event_base *tmp_event= event_init();
  72           event_base_free(tmp_event);
  73           ])],
  74         [ax_cv_libevent2=yes],
  75         [ax_cv_libevent2=no],
  76         [AC_MSG_WARN([test program execution failed])])
  77       AC_LANG_POP([C])
  78       AX_RESTORE_FLAGS
  79       ])
  80
  81     AS_IF([test "x$ax_cv_libevent2" = xyes],
  82         [AC_SUBST([LIBEVENT2_LIB],[-levent])
  83         AC_DEFINE([HAVE_LIBEVENT2],[1],[Define if event_init is present in event2/event.h.])],
  84         [AC_DEFINE([HAVE_LIBEVENT2],[0],[Define if event_init is present in event2/event.h.])])
  85
  86     AM_CONDITIONAL([HAVE_LIBEVENT2], [test "x$ax_cv_libevent2" = xyes])
  87 # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
  88     AS_IF([test "x$ax_cv_libevent2" = xyes],
  89         [$1],
  90         [$2])
  91     ])dnl AX_LIBEVENT2
  92
  93 #
  94 AC_DEFUN([AX_LIBEVENT2_EVHTTP],
  95     [AC_REQUIRE([AX_LIBEVENT2])
  96     AC_CACHE_CHECK([test for a working libevent2 evhttp interface], [ax_cv_libevent2_evhttp],
  97       [AX_SAVE_FLAGS
  98       LIBS="-levent $LIBS"
  99       AC_LANG_PUSH([C])
 100       AC_RUN_IFELSE([AC_LANG_PROGRAM([
 101 #include <sys/types.h>
 102 #include <sys/time.h>
 103 #include <stdlib.h>
 104 #include <event2/event.h>
 105 #include <event2/http.h>
 106           ],[
 107           struct event_base *libbase= event_base_new();
 108           struct evhttp *libsrvr= evhttp_new(libbase);
 109           ])],
 110         [ax_cv_libevent2_evhttp=yes],
 111         [ax_cv_libevent2_evhttp=no],
 112         [AC_MSG_WARN([test program execution failed])])
 113       AC_LANG_POP([C])
 114       AX_RESTORE_FLAGS
 115       ])
 116
 117     AS_IF([test "x$ax_cv_libevent2_evhttp" = "xyes"],
 118         [AC_DEFINE([HAVE_LIBEVENT2_EVHTTP],[1],[Define if event_init is present in event2/http.h.])],
 119         [AC_DEFINE([HAVE_LIBEVENT2_EVHTTP],[0],[Define if event_init is present in event2/http.h.])])
 120
 121     AM_CONDITIONAL([HAVE_LIBEVENT2_EVHTTP],[test "x$ax_cv_libevent2_evhttp" = xyes])
 122 # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
 123     AS_IF([test "x$ax_cv_libevent2_evhttp" = xyes],
 124         [$1],
 125         [$2])
 126     ])dnl AX_LIBEVENT2_EVHTTP