pkg/54349: bootstrap with --prefix fails on Solaris 10

[hiroshi-hakoyama%nagano.ac.jp@localhost]

>Number:         54349
>Category:       pkg
>Synopsis:       bootstrap with --prefix fails on Solaris 10
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jul 06 10:05:00 +0000 2019
>Originator:     Hiroshi Hakoyama
>Release:        pkgsrc current
>Organization:
Nagano University
>Environment:
SunOS ec21 5.10 Generic_147147-26 sun4u sparc SUNW,Sun-Blade-1000
>Description:
bootstrap with --prefix fails on Solaris 10.

# cd /usr/pkgsrc/bootstrap
# ./cleanup
# env CFLAGS=-O2 CC=/opt/csw/gcc4/bin/gcc GCCBASE=/opt/csw/gcc4 ./bootstrap --prefix=/usr/pkg3
===> bootstrap command: ./bootstrap --prefix=/usr/pkg3
===> bootstrap started: Sat Jul  6 18:58:16 JST 2019
./bootstrap: bad substitution


>How-To-Repeat:

>Fix:
a workaround:

vi bootstrap
#! /bin/sh    ->     #! /usr/bin/bash