[SVN-4655] configure: add zlib discovery through pkg-config

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.9.4, 1.10.0
• Fix Version/s: 1.9.5, trunk
• Component/s: compile, install

Environment

HP-UX 11.31

• Assignee: Unassigned
• Reporter: Michael Osipov
• Created: 19/Sep/16 13:52
• Updated: 27/Oct/18 16:28
• Resolved: 26/Sep/16 14:38

Description

configure does not find zlib even if --with-zlib=/path... is provided because $zlib_prefix/lib does not exist on HP-UX but only $zlib_prefix/lib/hpux32. By using pkg-config this can actually easily solved.

See attached patch which fixes the issue by probing provided prefix, if not try pkg-config and builtin. The idea was borrowed from serf.m4.