diff -wru ../dist/support/shlib-install ./support/shlib-install
--- ../dist/support/shlib-install	2006-01-03 20:06:27.000000000 +0100
+++ ./support/shlib-install	2007-06-13 07:20:52.000000000 +0200
@@ -144,7 +144,7 @@
 	fi
 	;;
 
-solaris2*|aix4.[2-9]*|osf*|irix[56]*|sysv[45]*|dgux*)
+solaris2*|aix4.[2-9]*|aix[5-9].*|osf*|irix[56]*|sysv[45]*|dgux*)
 	# libname.so -> libname.so.M
 	${echo} ${RM} ${INSTALLDIR}/$LINK1
 	if [ -z "$uninstall" ]; then
diff -wru ../dist/support/shobj-conf ./support/shobj-conf
--- ../dist/support/shobj-conf	2006-04-11 15:15:43.000000000 +0200
+++ ./support/shobj-conf	2007-06-13 07:21:14.000000000 +0200
@@ -247,7 +247,7 @@
 	SHLIB_LIBVERSION='$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)'
 	;;
 
-aix4.[2-9]*-*gcc*)		# lightly tested by address@hidden
+aix4.[2-9]*-*gcc*|aix[5-9].*-*gcc*)		# lightly tested by address@hidden
 	SHOBJ_CFLAGS=-fpic
 	SHOBJ_LD='ld'
 	SHOBJ_LDFLAGS='-bdynamic -bnoentry -bexpall'
@@ -258,7 +258,7 @@
 	SHLIB_LIBVERSION='$(SHLIB_LIBSUFF).$(SHLIB_MAJOR)'
 	;;
 
-aix4.[2-9]*)
+aix4.[2-9]*|aix[5-9].*)
 	SHOBJ_CFLAGS=-K
 	SHOBJ_LD='ld'
 	SHOBJ_LDFLAGS='-bdynamic -bnoentry -bexpall'