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configure.ac: Reduce zlib requirement from 1.2.8 to 1.2.3. 

Testing with zlib versions 1.2.{3,4,5,6,7,8} showed no difference in
functionality, correctness, or zlib API usage and 1.2.3 is the oldest
version available in still actively deployed production Linux
distributions (RHEL/CentOS 6 and SuSE 11).

Build 17.1.1 against the system supplied zlib-devel packages for 1.2.3
in EL6 and 1.2.7 on EL7. I then swapped out the zlib version at runtime
via LD_LIBRARY_PATH with ones build from the release tarballs from
zlib.net

Testwise - I ran the piglit shader profile with --quick addded to the
tests since I figured that would exercise the shader cache, which would
in turn use zlib.

Signed-off-by: Chuck Atkins <chuck.atkins@kitware.com>
Cc: 17.1 <mesa-stable@lists.freedesktop.org>
Cc: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
[Emil Velikov: add hunk about version/piglit testing]
Acked-by: Emil Velikov <emil.velikov@collabora.com>
This commit is contained in:
Chuck Atkins 2017-06-08 13:11:32 -04:00 committed by Emil Velikov
parent 65d1e4d1eb
commit ad69b037b1
1 changed files with 1 additions and 1 deletions
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configure.ac
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@ -97,7 +97,7 @@ XSHMFENCE_REQUIRED=1.1
XVMC_REQUIRED=1.0.6
PYTHON_MAKO_REQUIRED=0.8.0
LIBSENSORS_REQUIRED=4.0.0
ZLIB_REQUIRED=1.2.8
ZLIB_REQUIRED=1.2.3
dnl LLVM versions
LLVM_REQUIRED_GALLIUM=3.3.0