postgresql/doc/FAQ_AIX

From: Zeugswetter Andreas <ZeugswetterA@spardat.at>
Fri Sep 27 12:33:36 MSZ 2002

On AIX 4.3.2 PostgreSQL compiled with the native IBM compiler xlc 
(vac.C 5.0.1) passes all regression tests.
Other versions of OS and compiler should also work. If you don't have a 
powerpc or use gcc you might see rounding differences in the geometry
regression test.

Use the following configure flags in addition to your own
if you have readline or libz there:
--with-includes=/usr/local/include --with-libraries=/usr/local/lib

If you need libpq++ and have trouble --with-CXX=xlC make sure you have
installed the appropriate C++ include files and use a C++ version that
supports the string class (e.g. VisualAge C++ filesets vacpp.cmp.batch 5.0
and vacpp.cmp.include 5.0).

There will probably be warnings about 0.0/0.0 division and duplicate symbols 
which you can safely ignore.

Compiling PostgreSQL with gcc (2.95.3) on AIX also works.
Use the configure flags: --with-CC=gcc

You need libm.a that is in the fileset bos.adt.libm (try following command)
$ lslpp -l bos.adt.libm

Since the mktime() function does not work on AIX for dates before
1970, all localtime formatted datetimes will not use summer time for
dates before 1970.
Last Minute AIX_FAQ patch with small corrections for current version, please apply. Andreas 2002-02-02 02:23:24 +08:00			`From: Zeugswetter Andreas <ZeugswetterA@spardat.at>`
> > > > and mb conversions (pg_ascii2mic and pg_mic2ascii not > > > > found in the postmaster and not included from elsewhere) > > > > shared libs on AIX need to be able to resolve all symbols at linkage time. > > Those two symbols are in backend/utils/SUBSYS.o but not in the postgres > > executable. > > They are defined in backend/utils/mb/conv.c and declared in > include/mb/pg_wchar.h. They're also linked into the > postmaster. I don't see anything unusual. Attached is a patch to fix the mb linking problems on AIX. As a nice side effect it reduces the duplicate symbol warnings to linking libpq.so and libecpg.so (all shlibs that are not postmaster loadable modules). Please apply to current (only affects AIX). The _LARGE_FILES problem is unfortunately still open, unless Peter has fixed it per his recent idea. Zeugswetter Andreas SB SD 2002-10-10 00:21:54 +08:00			`Fri Sep 27 12:33:36 MSZ 2002`
FAQs contributed for this release. 1999-05-28 00:05:38 +08:00
The following patch updates the FAQ_AIX and makes C++ code work with more recent versions of the IBM C++ compiler (now called VisualAge C++). The C++ part was previously broken (g++ and xlC), thus this is zero risk. Only AIX specific parts are touched (1 Makefile.shlib line (link with $(COMPILER ) instead of $(CC) and one shell script line (parameter -C to nm to not demangle C++ symbo ls for .exp file)). I thus ask you to please apply this patch before release. With or without this patch RC1 on AIX 4.3.2 RS6000 passes "gmake check" for both the native compiler vac.C 5.0.1 and gcc 2.95.2 :-) Andreas 2001-03-27 22:56:20 +08:00			`On AIX 4.3.2 PostgreSQL compiled with the native IBM compiler xlc`
			`(vac.C 5.0.1) passes all regression tests.`
			`Other versions of OS and compiler should also work. If you don't have a`
			`powerpc or use gcc you might see rounding differences in the geometry`
			`regression test.`
Update from Andreas Zeugswetter <andreas.zeugswetter@telecom.at> for v6.5.2 info. 1999-09-14 23:34:49 +08:00
Please apply this patch to current, to fix a problem with runcheck, that installs into a different path than is configured. With this applied both postmaster and the shared libs are location independent for AIX 4.2 and up. Thanks Andreas 2000-11-09 12:17:53 +08:00			`Use the following configure flags in addition to your own`
			`if you have readline or libz there:`
Aix patches from Zeugswetter Andrea 2000-04-18 02:05:00 +08:00			`--with-includes=/usr/local/include --with-libraries=/usr/local/lib`
FAQs contributed for this release. 1999-05-28 00:05:38 +08:00
The following patch updates the FAQ_AIX and makes C++ code work with more recent versions of the IBM C++ compiler (now called VisualAge C++). The C++ part was previously broken (g++ and xlC), thus this is zero risk. Only AIX specific parts are touched (1 Makefile.shlib line (link with $(COMPILER ) instead of $(CC) and one shell script line (parameter -C to nm to not demangle C++ symbo ls for .exp file)). I thus ask you to please apply this patch before release. With or without this patch RC1 on AIX 4.3.2 RS6000 passes "gmake check" for both the native compiler vac.C 5.0.1 and gcc 2.95.2 :-) Andreas 2001-03-27 22:56:20 +08:00			`If you need libpq++ and have trouble --with-CXX=xlC make sure you have`
			`installed the appropriate C++ include files and use a C++ version that`
			`supports the string class (e.g. VisualAge C++ filesets vacpp.cmp.batch 5.0`
			`and vacpp.cmp.include 5.0).`
Aix patches from Zeugswetter Andrea 2000-04-18 02:05:00 +08:00
Last Minute AIX_FAQ patch with small corrections for current version, please apply. Andreas 2002-02-02 02:23:24 +08:00			`There will probably be warnings about 0.0/0.0 division and duplicate symbols`
			`which you can safely ignore.`
The following patch updates the FAQ_AIX and makes C++ code work with more recent versions of the IBM C++ compiler (now called VisualAge C++). The C++ part was previously broken (g++ and xlC), thus this is zero risk. Only AIX specific parts are touched (1 Makefile.shlib line (link with $(COMPILER ) instead of $(CC) and one shell script line (parameter -C to nm to not demangle C++ symbo ls for .exp file)). I thus ask you to please apply this patch before release. With or without this patch RC1 on AIX 4.3.2 RS6000 passes "gmake check" for both the native compiler vac.C 5.0.1 and gcc 2.95.2 :-) Andreas 2001-03-27 22:56:20 +08:00
Last Minute AIX_FAQ patch with small corrections for current version, please apply. Andreas 2002-02-02 02:23:24 +08:00			`Compiling PostgreSQL with gcc (2.95.3) on AIX also works.`
The following patch updates the FAQ_AIX and makes C++ code work with more recent versions of the IBM C++ compiler (now called VisualAge C++). The C++ part was previously broken (g++ and xlC), thus this is zero risk. Only AIX specific parts are touched (1 Makefile.shlib line (link with $(COMPILER ) instead of $(CC) and one shell script line (parameter -C to nm to not demangle C++ symbo ls for .exp file)). I thus ask you to please apply this patch before release. With or without this patch RC1 on AIX 4.3.2 RS6000 passes "gmake check" for both the native compiler vac.C 5.0.1 and gcc 2.95.2 :-) Andreas 2001-03-27 22:56:20 +08:00			`Use the configure flags: --with-CC=gcc`

> > > > and mb conversions (pg_ascii2mic and pg_mic2ascii not > > > > found in the postmaster and not included from elsewhere) > > > > shared libs on AIX need to be able to resolve all symbols at linkage time. > > Those two symbols are in backend/utils/SUBSYS.o but not in the postgres > > executable. > > They are defined in backend/utils/mb/conv.c and declared in > include/mb/pg_wchar.h. They're also linked into the > postmaster. I don't see anything unusual. Attached is a patch to fix the mb linking problems on AIX. As a nice side effect it reduces the duplicate symbol warnings to linking libpq.so and libecpg.so (all shlibs that are not postmaster loadable modules). Please apply to current (only affects AIX). The _LARGE_FILES problem is unfortunately still open, unless Peter has fixed it per his recent idea. Zeugswetter Andreas SB SD 2002-10-10 00:21:54 +08:00			`You need libm.a that is in the fileset bos.adt.libm (try following command)`
			`$ lslpp -l bos.adt.libm`

The following patch updates the FAQ_AIX and makes C++ code work with more recent versions of the IBM C++ compiler (now called VisualAge C++). The C++ part was previously broken (g++ and xlC), thus this is zero risk. Only AIX specific parts are touched (1 Makefile.shlib line (link with $(COMPILER ) instead of $(CC) and one shell script line (parameter -C to nm to not demangle C++ symbo ls for .exp file)). I thus ask you to please apply this patch before release. With or without this patch RC1 on AIX 4.3.2 RS6000 passes "gmake check" for both the native compiler vac.C 5.0.1 and gcc 2.95.2 :-) Andreas 2001-03-27 22:56:20 +08:00			`Since the mktime() function does not work on AIX for dates before`
			`1970, all localtime formatted datetimes will not use summer time for`
			`dates before 1970.`