Not every system has perl installed in /usr/bin/, so change the shebang

(#!) line to `/usr/bin/env perl` to locate perl on the PATH.

Everything after the first pathname in the shebang line is treated as
a single argument to the command interpreter (/usr/bin/env "perl -w"),
and there is not ordinarily any such program as "perl -w".  So if the
old shebang line used an option such as `-w`, add a `use warnings;`
statement to the script---note that the semantics change slightly.
`bin/destdep` uses a trick to pass `-p` to `/usr/bin/env perl`.  It
couldn't hurt to use the same trick to pass `-w`.

With these changes, `sh autogen.sh` runs on NetBSD.  It ought to still
work on every other system HDF5 supports, too.

1 files changed, 4 insertions, 1 deletions

diff --git a/bin/distdep b/bin/distdep
index 4643700..cd310e0 100755
--- a/bin/distdep
+++ b/bin/distdep
@@ -1,4 +1,7 @@
-#!/usr/bin/perl -p
+#!/bin/sh
+#! -*-perl-*-
+eval 'exec perl -p -x -S $0 ${1+"$@"}'
+  if 0;
 #
 # Copyright by The HDF Group.
 # Copyright by the Board of Trustees of the University of Illinois.