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Merge from eCos master repository on 2001-03-29-21:44:39-BST
author jlarmour
date Fri, 06 Apr 2001 17:20:13 +0000
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children c92d7972c02c
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1
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2 Frequently Asked Questions about zlib
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4
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5 If your question is not there, please check the zlib home page
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6 http://www.cdrom.com/pub/infozip/zlib/ which may have more recent information.
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8
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9 1) I need a Windows DLL
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10 2) I need a Visual Basic interface to zlib
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11 3) compress() returns Z_BUF_ERROR
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12 4) deflate or inflate returns Z_BUF_ERROR
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13 5) Where is the zlib documentation (man pages, etc...)?
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14 6) Why don't you use GNU autoconf, libtool, etc...?
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15 7) There is a bug in zlib.
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16 8) I get "undefined reference to gzputc"
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19
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20 1) I need a Windows DLL
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21
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22 The zlib sources can be compiled without change to produce a DLL.
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23 If you want a precompiled DLL, see http://www.winimage.com/zLibDll
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25
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26 2) I need a Visual Basic interface to zlib
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27
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28 See http://www.tcfb.com/dowseware/cmp-z-it.zip
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29 http://web2.airmail.net/markn/articles/zlibtool/zlibtool.htm
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30 and contrib/visual-basic.txt
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31
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32 3) compress() returns Z_BUF_ERROR
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33
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34 Make sure that before the call of compress, the length of the
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35 compressed buffer is equal to the total size of the compressed buffer
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36 and not zero. For Visual Basic, check that this parameter is passed
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37 by reference ("as any"), not by value ("as long").
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40 4) deflate or inflate returns Z_BUF_ERROR
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41
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42 Make sure that before the call avail_in and avail_out are not zero.
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44
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45 5) Where is the zlib documentation (man pages, etc...)?
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46
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47 It's in zlib.h for the moment. Volunteers to transform this
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48 to man pages, please contact jloup@gzip.org. Examples of zlib usage
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49 are in the files example.c and minigzip.c.
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51
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52 6) Why don't you use GNU autoconf, libtool, etc...?
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53
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54 Because we would like to keep zlib as a very small and simple package.
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55 zlib is rather portable and doesn't need much configuration.
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57
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58 7) There is a bug in zlib.
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59
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60 Most of the time, such problems are due to an incorrect usage
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61 of zlib. Please try to reproduce the problem with a small
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62 program and send us the corresponding source at zlib@quest.jpl.nasa.gov
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63 Do not send multi-megabyte data files without prior agreement.
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66 8) I get "undefined reference to gzputc"
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67
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68 If "make test" produces something like
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69 example.o(.text+0x174):
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70 check that you don't have old files libz.* in /usr/lib, /usr/local/lib
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71 or /usr/X11R6/lib. Remove old versions then do "make install".
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