Fix a configure issue that discarded the provided CC definition.Now the smallest block type is selected, for better compression. Fix a bug in block type selection when Z_FIXED used.Fix a bug when getting a gzip header extra field with inflateGetHeader().Version 1.2.13 has these key updates from 1.2.12: Fixed a logic error in minizip argument processing.Fixed reading disk number start on zip64 files in minizip.Fixed minizip to allow it to open an empty zip file.Fixed test/example.c to work with FORCE_STORED.Fixed a crash when gzsetparams() is attempted for a transparent write.Fixed a bug when using gzflush() with a very small buffer.Fixed a bug when gzungetc() is used immediately after gzopen().

Fixed a bug in deflateBound() for level 0 and memLevel 9.Building using K&R (pre-ANSI) function definitions is no longer supported.Version 1.3 has these key updates from 1.2.13: That the similarity is completely coincidental. If this page seems suspiciously similar to the Welcome to the zlib home page, web pages originally created by ( Not Related to the Linux zlibc Compressing File-I/O Library) (Also Free, Not to Mention Unencumbered by Patents) A Massively Spiffy Yet Delicately Unobtrusive Compression Library

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