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

   1 dnl  Copyright (C) 2009 Sun Microsystems
   2 dnl This file is free software; Sun Microsystems
   3 dnl gives unlimited permission to copy and/or distribute it,
   4 dnl with or without modifications, as long as this notice is preserved.
   5
   6 #--------------------------------------------------------------------
   7 # Check for libdl
   8 #--------------------------------------------------------------------
   9
  10
  11 AC_DEFUN([_PANDORA_SEARCH_LIBDL],[
  12
  13   save_LIBS="$LIBS"
  14   LIBS=""
  15   AC_CHECK_LIB(dl,dlopen)
  16   AC_CHECK_FUNCS(dlopen)
  17   LIBDL_LIBS="$LIBS"
  18   LIBS="${save_LIBS}"
  19   AC_SUBST(LIBDL_LIBS)
  20
  21   AM_CONDITIONAL(HAVE_LIBDL, [test "x${ac_cv_func_dlopen}" = "xyes"])
  22 ])
  23
  24 AC_DEFUN([_PANDORA_HAVE_LIBDL],[
  25
  26   AC_ARG_ENABLE([libdl],
  27     [AS_HELP_STRING([--disable-libdl],
  28       [Build with libdl support @<:@default=on@:>@])],
  29     [ac_enable_libdl="$enableval"],
  30     [ac_enable_libdl="yes"])
  31
  32   _PANDORA_SEARCH_LIBDL
  33 ])
  34
  35
  36 AC_DEFUN([PANDORA_HAVE_LIBDL],[
  37   AC_REQUIRE([_PANDORA_HAVE_LIBDL])
  38 ])
  39
  40 AC_DEFUN([_PANDORA_REQUIRE_LIBDL],[
  41   ac_enable_libdl="yes"
  42   _PANDORA_SEARCH_LIBDL
  43
  44   AS_IF([test "$ac_cv_func_dlopen" != "yes"],[
  45     AC_MSG_ERROR([libdl/dlopen() is required for ${PACKAGE}. On Debian this can be found in libc6-dev. On RedHat this can be found in glibc-devel.])
  46   ])
  47 ])
  48
  49 AC_DEFUN([PANDORA_REQUIRE_LIBDL],[
  50   AC_REQUIRE([_PANDORA_REQUIRE_LIBDL])
  51 ])