actually work. Thanks to John L. Allen for the hint.
Subject: Re: AIX longdoubles
From: "H.Merijn Brand" <h.m.brand@hccnet.nl>
Message-Id: <
20030401171819.D8E6.H.M.BRAND@hccnet.nl>
p4raw-id: //depot/perl@19113
# the required -bE:$installarchlib/CORE/perl.exp is added by
# libperl.U (Configure) later.
+case "$use64bitall" in
+ $define|true|[yY]*) use64bitint="$define" ;;
+ esac
+
+case "$usemorebits" in
+ $define|true|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
+ esac
+
+case $cc_type in
+ vac|xlc)
+ case "$uselongdouble" in
+ $define|true|[yY]*)
+ ccflags="$ccflags -qlongdouble"
+ libswanted="c128 $libswanted"
+ ;;
+ esac
+ esac
+
case "$cc" in
*gcc*) ;;
cc*|xlc*) # cc should've been set by line 116 or so if empty.