diff --git readline-clean/support/shlib-install readline-workdir/support/shlib-install
index 661355d..cd7d659 100755
--- readline-clean/support/shlib-install
+++ readline-workdir/support/shlib-install
@@ -71,7 +71,7 @@ fi
 # Cygwin installs both a dll (which must go in $BINDIR) and an implicit
 # link library (in $libdir)
 case "$host_os" in
-hpux*|darwin*|macosx*|linux*|solaris2*)
+hpux*|darwin*|macosx*|linux*|solaris2*|vinix*)
 	if [ -z "$uninstall" ]; then
 		chmod 755 ${INSTALLDIR}/${LIBNAME}
 	fi ;;
@@ -146,7 +146,7 @@ bsdi4*|*gnu*|darwin*|macosx*|netbsd*|mirbsd*)
 	fi
 	;;
 
-solaris2*|aix4.[2-9]*|aix[5-9]*|osf*|irix[56]*|sysv[45]*|dgux*|interix*)
+solaris2*|aix4.[2-9]*|aix[5-9]*|osf*|irix[56]*|sysv[45]*|dgux*|interix*|vinix*)
 	# libname.so -> libname.so.M
 	${echo} ${RM} ${INSTALLDIR}/$LINK1
 	if [ -z "$uninstall" ]; then
