+=head2 Incompatibility with AIX Toolbox lib gdbm
+
+If the AIX Toolbox version of lib gdbm < 1.8.3-5 is installed on your
+system then Perl will not work. This library contains the header files
+/opt/freeware/include/gdbm/dbm.h|ndbm.h which conflict with the AIX
+system versions. The lib gdbm will be automatically removed from the
+wanted libraries if the presence of one of these two header files is
+detected. If you want to build Perl with GDBM support then please install
+at least gdbm-devel-1.8.3-5 (or higher).
+
+=head2 Perl 5 was successfully compiled and tested on:
+
+ Perl | AIX Level | Compiler Level | w th | w/o th
+ -------+---------------------+-------------------------+------+-------
+ 5.12.2 |5.1 TL9 32 bit | XL C/C++ V7 | OK | OK
+ 5.12.2 |5.1 TL9 64 bit | XL C/C++ V7 | OK | OK
+ 5.12.2 |5.2 TL10 SP8 32 bit | XL C/C++ V8 | OK | OK
+ 5.12.2 |5.2 TL10 SP8 32 bit | gcc 3.2.2 | OK | OK
+ 5.12.2 |5.2 TL10 SP8 64 bit | XL C/C++ V8 | OK | OK
+ 5.12.2 |5.3 TL8 SP8 32 bit | XL C/C++ V9 + IZ35785 | OK | OK
+ 5.12.2 |5.3 TL8 SP8 32 bit | gcc 4.2.4 | OK | OK
+ 5.12.2 |5.3 TL8 SP8 64 bit | XL C/C++ V9 + IZ35785 | OK | OK
+ 5.12.2 |5.3 TL10 SP3 32 bit | XL C/C++ V11 + Apr 2010 | OK | OK
+ 5.12.2 |5.3 TL10 SP3 64 bit | XL C/C++ V11 + Apr 2010 | OK | OK
+ 5.12.2 |6.1 TL1 SP7 32 bit | XL C/C++ V10 | OK | OK
+ 5.12.2 |6.1 TL1 SP7 64 bit | XL C/C++ V10 | OK | OK
+ 5.13 |7.1 TL0 SP1 32 bit | XL C/C++ V11 + Jul 2010 | OK | OK
+ 5.13 |7.1 TL0 SP1 64 bit | XL C/C++ V11 + Jul 2010 | OK | OK
+
+ w th = with thread support
+ w/o th = without thread support
+ OK = tested
+
+Successfully tested means that all "make test" runs finish with a
+result of 100% OK. All tests were conducted with -Duseshrplib set.
+
+All tests were conducted on the oldest supported AIX technology level
+with the latest support package applied. If the tested AIX version is
+out of support (AIX 4.3.3, 5.1, 5.2) then the last available support
+level was used.
+