79 lines
2.6 KiB
Plaintext
79 lines
2.6 KiB
Plaintext
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Some notes for the AIX port
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===========================
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1. Known problems
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-----------------
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There are the following known problems on AIX:
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1) Shared libraries / embedded perl
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Up to (and including) net-snmp 5.4, configure forced a static build
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on AIX which caused embedded Perl to be disabled as well.
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Starting with net-snmp 5.4.1, we build shared libraries by default on AIX
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(like on any other platform) using run-time linking. configure forces the
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use of the required "-brtl" linker flag.
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With net-snmp 5.5 the shared library build is broken again but the there is
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no forced static build - use --disable-shared when building.
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2) "grep: capacity exceeded" or "sed: Command line is too long" during configure
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The version of "grep" shipped with AIX versions up to (and including) 5.1
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has a known limitation of only supporting a maximum of 2048 characters per line.
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This may cause a significant number of "grep: capacity exceeded" errors during
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configure which breaks the build. See bug 1367794 for details. The fix is to
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either install GNU grep (and have it in PATH before the AIX grep) or to upgrade
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to AIX 5.2 or later.
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There's a similar issue with AIX /usr/bin/sed up to at least AIX 5.3 that
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causes a significant number of "sed: Command line is too long." errors during
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configure. The fix is to install GNU sed.
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3) nlist errors with 64-bit kernels
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Accessing certain MIB objects on AIX 5.x machines running a 64-bit kernel will
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trigger nlist/klookup errors. Starting from net-snmp 5.4, you can avoid those
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by using
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./configure --without-kmem-usage ...
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4) IPv6
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Starting with net-snmp 5.4 you can enable the UDPIPv6 and TCPIPv6 transports
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on AIX 5.x:
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./configure --enable-ipv6
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There's no support for the IPv6 MIBs, though.
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5) Compiler for Perl
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In general, Perl modules need to be compiled with the same compiler and
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compiler options as Perl itself. configure detects some mismatches (gcc vs.
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vendor compiler), but treats different incarnations of the same compiler type
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as similar. If your version of Perl (e.g. the one supplied by IBM for AIX 5.x)
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has been compiled with cc_r on AIX, please make sure you also use CC=cc_r when
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building net-snmp. Building with xlc in this case is known to fail (see bug
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#1600099).
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2. Patches
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----------
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You may want to have a look for existing AIX patches in our patches tracker
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(http://www.net-snmp.org/patches/). If you can offer patches yourself to
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improve the AIX support, please submit them there.
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3. Feedback
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-----------
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Please also see README and PORTING.
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If you have questions, additional insights or (even better) patches regarding
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net-snmp on AIX, please refer to the net-snmp mailing lists (see
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http://www.net-snmp.org/lists).
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