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Viewing changes to m4/pandora_have_libz.m4

  • Committer: Monty Taylor
  • Date: 2009-04-14 19:16:51 UTC
  • mto: (997.2.5 mordred)
  • mto: This revision was merged to the branch mainline in revision 994.
  • Revision ID: mordred@inaugust.com-20090414191651-ltbww6hpqks8k7qk
Clarified instructions in README.

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m4/pandora_have_libz.m4
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dnl  Copyright (C) 2009 Sun Microsystems
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dnl This file is free software; Sun Microsystems
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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#--------------------------------------------------------------------
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# Check for libz
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#--------------------------------------------------------------------
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AC_DEFUN([_PANDORA_SEARCH_LIBZ],[
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  AC_REQUIRE([AC_LIB_PREFIX])
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  AC_LIB_HAVE_LINKFLAGS(z,,
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  [
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    #include <zlib.h>
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  ],[
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    crc32(0, Z_NULL, 0);
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  ])
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  AM_CONDITIONAL(HAVE_LIBZ, [test "x${ac_cv_libz}" = "xyes"])
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])
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AC_DEFUN([_PANDORA_HAVE_LIBZ],[
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  AC_ARG_ENABLE([libz],
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    [AS_HELP_STRING([--disable-libz],
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      [Build with libz support @<:@default=on@:>@])],
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    [ac_enable_libz="$enableval"],
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    [ac_enable_libz="yes"])
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  _PANDORA_SEARCH_LIBZ
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])
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AC_DEFUN([PANDORA_HAVE_LIBZ],[
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  AC_REQUIRE([_PANDORA_HAVE_LIBZ])
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])
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AC_DEFUN([_PANDORA_REQUIRE_LIBZ],[
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  ac_enable_libz="yes"
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  _PANDORA_SEARCH_LIBZ
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  AS_IF([test x$ac_cv_libz = xno],[
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    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.])
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  ])
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])
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AC_DEFUN([PANDORA_REQUIRE_LIBZ],[
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  AC_REQUIRE([_PANDORA_REQUIRE_LIBZ])
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])