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73 lines
2.2 KiB
Plaintext
73 lines
2.2 KiB
Plaintext
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Frequently Asked Questions about zlib
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If your question is not there, please check the zlib home page
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http://www.cdrom.com/pub/infozip/zlib/ which may have more recent information.
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1) I need a Windows DLL
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2) I need a Visual Basic interface to zlib
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3) compress() returns Z_BUF_ERROR
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4) deflate or inflate returns Z_BUF_ERROR
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5) Where is the zlib documentation (man pages, etc...)?
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6) Why don't you use GNU autoconf, libtool, etc...?
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7) There is a bug in zlib.
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8) I get "undefined reference to gzputc"
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1) I need a Windows DLL
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The zlib sources can be compiled without change to produce a DLL.
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If you want a precompiled DLL, see http://www.winimage.com/zLibDll
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2) I need a Visual Basic interface to zlib
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See http://www.tcfb.com/dowseware/cmp-z-it.zip
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http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm
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and contrib/visual-basic.txt
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3) compress() returns Z_BUF_ERROR
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Make sure that before the call of compress, the length of the
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compressed buffer is equal to the total size of the compressed buffer
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and not zero. For Visual Basic, check that this parameter is passed
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by reference ("as any"), not by value ("as long").
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4) deflate or inflate returns Z_BUF_ERROR
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Make sure that before the call avail_in and avail_out are not zero.
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5) Where is the zlib documentation (man pages, etc...)?
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It's in zlib.h for the moment. Volunteers to transform this
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to man pages, please contact jloup@gzip.org. Examples of zlib usage
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are in the files example.c and minigzip.c.
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6) Why don't you use GNU autoconf, libtool, etc...?
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Because we would like to keep zlib as a very small and simple package.
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zlib is rather portable and doesn't need much configuration.
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7) There is a bug in zlib.
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Most of the time, such problems are due to an incorrect usage
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of zlib. Please try to reproduce the problem with a small
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program and send us the corresponding source at zlib@quest.jpl.nasa.gov
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Do not send multi-megabyte data files without prior agreement.
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8) I get "undefined reference to gzputc"
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If "make test" produces something like
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example.o(.text+0x174):
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check that you don't have old files libz.* in /usr/lib, /usr/local/lib
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or /usr/X11R6/lib. Remove old versions then do "make install".
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