RFR: JDK-8175795 configure should verify that system zlib contains needed functionality

Magnus Ihse Bursie magnus.ihse.bursie at oracle.com
Mon Dec 4 10:57:14 UTC 2017

If we're using the system zlib instead of the bundled zlib, we should 
verify that it includes all relevant functions. We now rely on the 
inflateValidate() function, which was introduced in zlib 1.2.9 which is 
very recent. This patch adds a test to the system zlib to verify this 
and to fail fast in case it's too old.

Bug: https://bugs.openjdk.java.net/browse/JDK-8175795


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