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| -rw-r--r-- | README.AIX | 68 |
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diff --git a/README.AIX b/README.AIX new file mode 100644 index 0000000..d7db29b --- /dev/null +++ b/README.AIX @@ -0,0 +1,68 @@ +This file describes some things to be aware of when building SIP (and PyQt) +under AIX. + +I had success building SIP V3/V4 (and PyQt) on AIX 4.3.3 and on AIX 5.1 with +VisualAge C++ and with gcc. + +VisualAge C++ was version 6.0 but it should also work with version 5.x. +The GNU compiler was version 3.3.2 downloaded as a binary from +http://aixpdslib.seas.ucla.edu/aixpdslib.html + +The Qt-Version was 3.2.3 but it should also work with previous versions. + +If you are using Python version 2.3.3 or higher, SIP (and PyQt) should build +out of the box without any changes. + +If you are using a Python version before 2.3.3, you have to patch Python, +because until this version, Python uses the system calls load() and +loadbind() to load and bind shared objects. These system calls cannot load +and bind C++ shared objects properly (constructors and destructors for static +classes are not called with these system calls). Since AIX version 4.2 the +system calls dlopen() and dlsym() are available and should be used in +preference. + +The following patch changes the configure script of Python to use dlopen() +and dlsym() if they are available. It also fixes a bug with the definition of +_XOPEN_SOURCE: + +---8<-------------------------------------------------------------------->8--- +diff -uNr Python-2.3.2.orig/configure Python-2.3.2/configure +--- Python-2.3.2.orig/configure 2003-09-27 10:58:55.000000000 +0200 ++++ Python-2.3.2/configure 2003-10-28 11:33:58.000000000 +0100 +@@ -1452,6 +1452,11 @@ + # but used in struct sockaddr.sa_family. Reported by Tim Rice. + SCO_SV/3.2) + define_xopen_source=no;; ++ # On AIX 4, mbstate_t is defined only when _XOPEN_SOURCE == 500 but used in ++ # wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined or ++ # has another value. By not (re)defining it, the defaults come in place. ++ AIX/4) ++ define_xopen_source=no;; + esac + + if test $define_xopen_source = yes +@@ -12965,7 +12970,12 @@ + if test -z "$DYNLOADFILE" + then + case $ac_sys_system/$ac_sys_release in +- AIX*) DYNLOADFILE="dynload_aix.o";; ++ AIX*) # Use dynload_shlib.c and dlopen() if we have it. ++ if test "$ac_cv_func_dlopen" = yes ++ then DYNLOADFILE="dynload_shlib.o" ++ else DYNLOADFILE="dynload_aix.o" ++ fi ++ ;; + BeOS*) DYNLOADFILE="dynload_beos.o";; + hp*|HP*) DYNLOADFILE="dynload_hpux.o";; + Darwin/*) DYNLOADFILE="dynload_next.o";; +---8<-------------------------------------------------------------------->8--- + +Note: I did not mix the compilers when building Qt, Python, SIP and PyQt. At +least Qt, SIP and PyQt must be built with the same compiler because of +different name mangling schemes. + +If you have any problems or questions on building SIP or PyQt on AIX, either +send an email to ulrich.berning@desys.de or use the PyKDE mailing list. + +Ulrich Berning +DESYS GmbH |