$NetBSD: patch-bin_cmakehdf4,v 1.1 2022/04/24 21:50:48 tnn Exp $

--- bin/cmakehdf4.orig	2020-03-03 17:40:50.000000000 +0000
+++ bin/cmakehdf4
@@ -29,7 +29,7 @@ exit_code=0
 # and should have invoked as "$srcdir/bin/$progname" or
 # "bin/$progname". So, by striping bin/$program from $0,
 # we can find $srcdir.
-if [ $0 == bin/$progname ]; then
+if [ $0 = bin/$progname ]; then
     srcdir="."        # current directory
 else
     # $0 is $srdir/bin/$progname