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# found, and sets @ZLIB_LDFLAGS@ and @ZLIB_CFLAGS@ to the necessary8
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# values.9
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#10
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# This macro is distributed in the hope that it will be useful,11
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# but WITHOUT ANY WARRANTY; without even the implied warranty of12
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.13
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AC_DEFUN([ZLIB_TRY_LINK],15
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found_zlib=$117
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AC_TRY_LINK(18
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[17
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[19
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#include <zlib.h>20
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],21
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[19
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]], [[22
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z_stream defstream;23
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deflateInit(&defstream, Z_BEST_COMPRESSION);24
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],25
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found_zlib="yes")22
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]])],[found_zlib="yes"],[])26
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])dnl27
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AC_DEFUN([ZLIB_CHECK_CONFIG],29
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[30
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AC_ARG_WITH([zlib],[31
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If you want to specify zlib installation directories:32
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AC_HELP_STRING([--with-zlib@<:@=DIR@:>@], [use zlib from given base install directory (DIR), default is to search through a number of common places for the zlib files.])],29
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AS_HELP_STRING([--with-zlib@<:@=DIR@:>@],[use zlib from given base install directory (DIR), default is to search through a number of common places for the zlib files.])],33
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[34
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test "x$withval" = "xyes" && withval=/usr35
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ZLIB_CFLAGS="-I$withval/include"36
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ZLIB_LDFLAGS="-L$withval/lib"37
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_zlib_dir_set="yes"38
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]39
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)40
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AC_ARG_WITH([zlib-include],42
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AC_HELP_STRING([--with-zlib-include=DIR],43
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[use zlib include headers from given path.]44
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),39
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AS_HELP_STRING([--with-zlib-include=DIR],[use zlib include headers from given path.40
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]),45
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[46
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ZLIB_CFLAGS="-I$withval"47
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_zlib_dir_set="yes"48
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]49
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)50
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AC_ARG_WITH([zlib-lib],52
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AC_HELP_STRING([--with-zlib-lib=DIR],53
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[use zlib libraries from given path.]54
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),48
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AS_HELP_STRING([--with-zlib-lib=DIR],[use zlib libraries from given path.49
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]),55
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[56
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ZLIB_LDFLAGS="-L$withval"57
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_zlib_dir_set="yes"58
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]59
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)60
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AC_MSG_CHECKING(for zlib support)62
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ZLIB_LIBS="-lz"64
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