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Plugins Support on AIX
======================
/How to build Dovecot with plugins supported on AIX./
Tested with:
* AIX 5.2, VAC 5.0.2 and Dovecot 1.0rc21 to 1.0.13 /(Dovecot 1.1.x does not
build with VAC 5.0.2)/
* AIX 5.2, VAC 8.0.0 and Dovecot 1.1.1
The Problem
-----------
* When you trying to use plugins on AIX you seen error messages like this:
---%<----------------------------------------------------------------------
imap(root): Error:
dlopen(/usr/local/lib/dovecot/imap/lib20_zlib_plugin.so) failed:
rtld: 0712-001 Symbol i_error was referenced
from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(),
but a runtime definition of the symbol was not found.
rtld: 0712-001 Symbol i_stream_get_data was referenced
from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(),
but a runtime definition of the symbol was not found.
rtld: 0712-001 Symbol i_stream_skip was referenced
from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(),
but a runtime definition of the symbol was not found.
rtld: 0712-001 Symbol i_stream_seek was referenced
from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(),
but a runtime definition of the symbol was not found.
rtld: 0712-001 Symbol i_stream_close was referenced
from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(),
but a runtime definition of the symbol was not found.
rtld: 0712-001 Symbol i_panic was referenced
from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(),
but a runtime definition of the symbol was not found.
rtld: 0712-001 Symbol pool_get_exp_grown_size was referenced
from module /usr/local/lib/dovecot/imap/lib20_zlib_plugin.so(),
but a runtime definition of the symbol was not found.
Additional errors occurred but are not reported.
---%<----------------------------------------------------------------------
* .. produced by executing
---%<----------------------------------------------------------------------
# MAIL_PLUGINS=zlib /usr/local/libexec/dovecot/imap
---%<----------------------------------------------------------------------
Compiler Script
---------------
* Create a compiler script to rewrite the /xlc/ command line on the fly:
*dovecot-cc*
---%<----------------------------------------------------------------------
#!/bin/bash
xlc=/usr/bin/xlc
ar=/bin/ar
sed=/bin/sed
dest=NOBINARY
for i in "$@"; do
case "$i" in
'-o') dest=;;
*) if [ -z "$dest" ]; then dest="$i"; break; fi;;
esac
done
case "$dest" in
imap-login) args1="../lib-charset/libcharset.a ../lib-mail/libmail.a
-liconv";;
imap) args1="../lib-sql/libsql.a";;
pop3) args1="../lib-sql/libsql.a";;
deliver) args1="../lib-sql/libsql.a";;
esac
for i in "$@" $args1; do
case "$i" in
*/*.a) lib="${i##*/}"; obj=`$ar -t $i | $sed "s:^:${i%/*}/:"`;;
*.a) lib="$i"; obj=`$ar -t $i | $sed "s:^:./:"`;;
*) continue;;
esac
test -d .libs || mkdir .libs
> .libs/${lib%.a}.exp
args2="$args2 -bE:.libs/${lib%.a}.exp"
(set -x ; exec $xlc -qmkshrobj -qexpfile=.libs/${lib%.a}.exp $obj)
2>/dev/null
done
(set -x ; exec $xlc "$@" $args1 $args2)
---%<----------------------------------------------------------------------
Compiling Dovecot
-----------------
* Expand Dovecot:
---%<----------------------------------------------------------------------
gzip -cd doveccot-1.0.rc21.tar.gz | tar xvf -
---%<----------------------------------------------------------------------
* Setup build environment:
---%<----------------------------------------------------------------------
export CC=$PWD/dovecot-cc
export LDFLAGS="-bexpall -brtl"
---%<----------------------------------------------------------------------
* Configure and build Dovecot
---%<----------------------------------------------------------------------
cd dovecot-1.0.rc21
bash configure
make
---%<----------------------------------------------------------------------
* Test a plugin (e.g. zlib)
---%<----------------------------------------------------------------------
echo 0 logout | MAIL_PLUGIN_DIR=src/plugins/zlib/.libs/ MAIL_PLUGINS="zlib"
MAIL=maildir:/tmp src/imap/imap
---%<----------------------------------------------------------------------
you should see this:
---%<----------------------------------------------------------------------
* PREAUTH [CAPABILITY IMAP4rev1 SASL-IR SORT THREAD=REFERENCES MULTIAPPEND
UNSELECT LITERAL+ IDLE CHILDREN NAMESPACE LOGIN-REFERRALS] Logged in as root
* BYE Logging out
0 OK Logout completed.
imap(root): Info: Disconnected: Logged out
---%<----------------------------------------------------------------------
* Install Dovecot
---%<----------------------------------------------------------------------
make install
---%<----------------------------------------------------------------------
Prebuild Binaries for AIX 5.2
-----------------------------
You will find prebuild AIX 5.2 binaries here:
http://www.fh-trier.de/~beckerr/dovecot/
(This file was created from the wiki on 2019-06-19 12:42)
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