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