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

   1 dnl  Copyright (C) 2009 Sun Microsystems, Inc.
   2 dnl This file is free software; Sun Microsystems, Inc.
   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 libz
   8 #--------------------------------------------------------------------
   9
  10
  11 AC_DEFUN([_PANDORA_SEARCH_LIBZ],[
  12   AC_REQUIRE([AC_LIB_PREFIX])
  13
  14   AC_LIB_HAVE_LINKFLAGS(z,,
  15   [
  16     #include <zlib.h>
  17   ],[
  18     crc32(0, Z_NULL, 0);
  19   ])
  20
  21   AM_CONDITIONAL(HAVE_LIBZ, [test "x${ac_cv_libz}" = "xyes"])
  22 ])
  23
  24 AC_DEFUN([_PANDORA_HAVE_LIBZ],[
  25
  26   AC_ARG_ENABLE([libz],
  27     [AS_HELP_STRING([--disable-libz],
  28       [Build with libz support @<:@default=on@:>@])],
  29     [ac_enable_libz="$enableval"],
  30     [ac_enable_libz="yes"])
  31
  32   _PANDORA_SEARCH_LIBZ
  33 ])
  34
  35
  36 AC_DEFUN([PANDORA_HAVE_LIBZ],[
  37   AC_REQUIRE([_PANDORA_HAVE_LIBZ])
  38 ])
  39
  40 AC_DEFUN([_PANDORA_REQUIRE_LIBZ],[
  41   ac_enable_libz="yes"
  42   _PANDORA_SEARCH_LIBZ
  43
  44   AS_IF([test x$ac_cv_libz = xno],[
  45     AC_MSG_ERROR([libz is required for ${PACKAGE}. On Debian this can be found in zlib1g-dev. On RedHat this can be found in zlib-devel.])
  46   ])
  47 ])
  48
  49 AC_DEFUN([PANDORA_REQUIRE_LIBZ],[
  50   AC_REQUIRE([_PANDORA_REQUIRE_LIBZ])
  51 ])