Index: configure.in
===================================================================
--- configure.in	(révision 88420)
+++ configure.in	(copie de travail)
@@ -708,6 +708,11 @@
     ;;
 esac
 
+AC_MSG_CHECKING(for --enable-aix-maxdata)
+AC_ARG_ENABLE(aix-maxdata,
+              AS_HELP_STRING([--enable-aix-maxdata], [enable building python on AIX with support for 512MB of memory instead of 256MB]))
+AC_MSG_RESULT($enable_aix_maxdata)
+
 AC_MSG_CHECKING(LDLIBRARY)
 
 # MacOSX framework builds need more magic. LDLIBRARY is the dynamic
@@ -1813,7 +1826,13 @@
 if test -z "$LINKFORSHARED"
 then
 	case $ac_sys_system/$ac_sys_release in
-	AIX*)	LINKFORSHARED='-Wl,-bE:Modules/python.exp -lld';;
+	AIX*)
+		LINKFORSHARED='-Wl,-bE:Modules/python.exp -lld'
+		if test "$enable_aix_maxdata"
+		then
+			LINKFORSHARED="$LINKFORSHARED -bmaxdata:0x20000000"
+		fi
+		;;
 	hp*|HP*)
 	    LINKFORSHARED="-Wl,-E -Wl,+s";;
 #	    LINKFORSHARED="-Wl,-E -Wl,+s -Wl,+b\$(BINLIBDEST)/lib-dynload";;