Merge pull request #1984 in HDFFV/hdf5 from ~DYOUNG/netbsd:develop to develop

* commit '0b721858e46a317c370a24115032d5be41688f67':
  Make these scripts relocatable again: derive a relative path for the original installation prefix from the examples prefix.  Use that relative path to locate the current installation prefix, always.  Fall back to an absolute installation prefix if the relative path cannot be derived.
  Get the path to prefix right: needs a ../ to back out of subdirectory c/.
  Make this script relocatable again: derive a relative path for the original installation prefix from the examples prefix.  Use that relative path to locate the current installation prefix, always.  Fall back to an absolute installation prefix if the relative path cannot be derived.
  Let us override the examples directory using --with-examplesdir=DIR. This is handy for NetBSD where HDF5 examples are installed by convention in $prefix/share/examples/hdf5/ rather than in ${prefix}/share/hdf5_examples/, which is the HDF5 default.
  Follow longstanding execv convention for compatibility with NetBSD.
  Under the examples directories, always find the installed HDF5 executables and scripts using @prefix@ instead of a relative path, because the number of ../ in the relative path will be different on NetBSD than on other systems.
  Make the HDF5 configure script grok NetBSD.
  For portability, insulate the HDF5 library from some system macros.
  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.
  For portability, use the POSIX sh(1) string-comparison operator `=` instead of `==`.

12 files changed, 26 insertions, 12 deletions

diff --git a/bin/checkapi b/bin/checkapi
index 6882dea..f5dcacc 100755
--- a/bin/checkapi
+++ b/bin/checkapi
@@ -1,4 +1,4 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 #
 # Copyright by The HDF Group.
 # Copyright by the Board of Trustees of the University of Illinois.
@@ -13,6 +13,8 @@
 #
 require 5.003;
 
+use warnings;
+
 # Purpose: insures that API functions aren't called internally.
 # Usage:   checkapi H5*.c
 my $filename = "";
diff --git a/bin/checkposix b/bin/checkposix
index 30128e3..233d15c 100755
--- a/bin/checkposix
+++ b/bin/checkposix
@@ -1,5 +1,6 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 require 5.003;
+use warnings;
 
 #
 # Copyright by The HDF Group.
diff --git a/bin/debug-ohdr b/bin/debug-ohdr
index 5b0a4b3..1363456 100755
--- a/bin/debug-ohdr
+++ b/bin/debug-ohdr
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 #
 # Copyright by The HDF Group.
 # Copyright by the Board of Trustees of the University of Illinois.
diff --git a/bin/dependencies b/bin/dependencies
index 82247da..367351a 100755
--- a/bin/dependencies
+++ b/bin/dependencies
@@ -1,4 +1,4 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 #
 # Copyright by The HDF Group.
 # Copyright by the Board of Trustees of the University of Illinois.
@@ -11,6 +11,8 @@
 # If you do not have access to either file, you may request a copy from
 # help@hdfgroup.org.
 #
+use warnings;
+
 my $depend_file;
 my $new_depend_file;
 my $srcdir;
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.
diff --git a/bin/errors b/bin/errors
index 3c99fdc..107bb9c 100755
--- a/bin/errors
+++ b/bin/errors
@@ -1,5 +1,6 @@
-#!/usr/local/bin/perl -w
+#!/usr/bin/env perl
 require 5.003;
+use warnings;
 use Text::Tabs;
 
 # NOTE: THE FORMAT OF HRETURN_ERROR AND HGOTO_ERROR MACROS HAS
diff --git a/bin/iostats b/bin/iostats
index f054b9c..e389992 100755
--- a/bin/iostats
+++ b/bin/iostats
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 #
 # Copyright by The HDF Group.
 # Copyright by the Board of Trustees of the University of Illinois.
diff --git a/bin/make_err b/bin/make_err
index 623c1b6..7f38591 100755
--- a/bin/make_err
+++ b/bin/make_err
@@ -1,6 +1,7 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 require 5.003;
 $indent=4;
+use warnings;
 
 #
 # Copyright by The HDF Group.
diff --git a/bin/make_overflow b/bin/make_overflow
index ccd640e..cee0126 100755
--- a/bin/make_overflow
+++ b/bin/make_overflow
@@ -1,6 +1,7 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 require 5.003;
 use strict;
+use warnings;
 
 # Global settings
 
diff --git a/bin/make_vers b/bin/make_vers
index 1ea1402..c6d2c04 100755
--- a/bin/make_vers
+++ b/bin/make_vers
@@ -1,5 +1,6 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 require 5.003;
+use warnings;
 
 # Global settings
 # (The max_idx parameter is the only thing that needs to be changed when adding
diff --git a/bin/runbkgprog b/bin/runbkgprog
index 69fa2d0..f04ea89 100755
--- a/bin/runbkgprog
+++ b/bin/runbkgprog
@@ -1,5 +1,6 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 require 5.003;
+use warnings;
 $indent=4;
 
 #
diff --git a/bin/trace b/bin/trace
index 3cae0a4..34bcd3a 100755
--- a/bin/trace
+++ b/bin/trace
@@ -1,4 +1,4 @@
-#!/usr/bin/perl -w
+#!/usr/bin/env perl
 ##
 # Copyright by The HDF Group.
 # Copyright by the Board of Trustees of the University of Illinois.
@@ -12,6 +12,7 @@
 # help@hdfgroup.org.
 ##
 require 5.003;
+use warnings;
 $Source = "";
 
 ##############################################################################