diff -Nru libmath-clipper-perl-1.27/Changes libmath-clipper-perl-1.29/Changes
--- libmath-clipper-perl-1.27/Changes	2018-05-14 00:52:12.000000000 +0000
+++ libmath-clipper-perl-1.29/Changes	2019-05-17 06:59:15.000000000 +0000
@@ -1,5 +1,16 @@
 Revision history for Perl extension Math::Clipper.
 
+1.29 Thursday May 16 23:51:00 2019
+
+  - Fix build error under clang and pre-5.18 Perls.
+
+1.28  Sat May 11 03:42:00 2019
+
+  - Avoid use of ** in calculating scaling factors in
+    integerize_coordinate_sets() to avoid inconsistent
+    behavior of underlying pow() function between BSD + clang
+    and other systems.
+
 1.27  Sun May 13 17:46:00 2018
 
   - Fix integerize bug introduced in 1.26 for 32 bit Perl (ivsize < 8)
diff -Nru libmath-clipper-perl-1.27/debian/changelog libmath-clipper-perl-1.29/debian/changelog
--- libmath-clipper-perl-1.27/debian/changelog	2018-11-03 00:11:51.000000000 +0000
+++ libmath-clipper-perl-1.29/debian/changelog	2019-07-27 06:18:05.000000000 +0000
@@ -1,8 +1,13 @@
-libmath-clipper-perl (1.27-1build1) disco; urgency=medium
+libmath-clipper-perl (1.29-1) unstable; urgency=medium
 
-  * No-change rebuild for the perl 5.28 transition.
+  * Team upload
+  * New upstream version 1.29
+  * Update d/copright years
+  * Bump compat to 12
+  * Bump Standards-Version to 4.4.0
+  * Add d/upstream/metadata
 
- -- Adam Conrad <adconrad@ubuntu.com>  Fri, 02 Nov 2018 18:11:51 -0600
+ -- Utkarsh Gupta <guptautkarsh2102@gmail.com>  Sat, 27 Jul 2019 11:48:05 +0530
 
 libmath-clipper-perl (1.27-1) unstable; urgency=medium
 
diff -Nru libmath-clipper-perl-1.27/debian/compat libmath-clipper-perl-1.29/debian/compat
--- libmath-clipper-perl-1.27/debian/compat	2018-05-17 20:36:30.000000000 +0000
+++ libmath-clipper-perl-1.29/debian/compat	1970-01-01 00:00:00.000000000 +0000
@@ -1 +0,0 @@
-10
diff -Nru libmath-clipper-perl-1.27/debian/control libmath-clipper-perl-1.29/debian/control
--- libmath-clipper-perl-1.27/debian/control	2018-05-17 20:36:30.000000000 +0000
+++ libmath-clipper-perl-1.29/debian/control	2019-07-27 06:18:05.000000000 +0000
@@ -4,14 +4,14 @@
 Section: perl
 Testsuite: autopkgtest-pkg-perl
 Priority: optional
-Build-Depends: debhelper (>= 10),
+Build-Depends: debhelper-compat (= 12),
                libextutils-cppguess-perl (>= 0.12),
                libextutils-typemaps-default-perl,
-               libextutils-xspp-perl (>= 0.1800),
+               libextutils-xspp-perl,
                libmodule-build-withxspp-perl,
                libtest-deep-perl,
                perl
-Standards-Version: 4.1.4
+Standards-Version: 4.4.0
 Vcs-Browser: https://salsa.debian.org/perl-team/modules/packages/libmath-clipper-perl
 Vcs-Git: https://salsa.debian.org/perl-team/modules/packages/libmath-clipper-perl.git
 Homepage: https://metacpan.org/release/Math-Clipper
diff -Nru libmath-clipper-perl-1.27/debian/copyright libmath-clipper-perl-1.29/debian/copyright
--- libmath-clipper-perl-1.27/debian/copyright	2018-05-17 20:36:30.000000000 +0000
+++ libmath-clipper-perl-1.29/debian/copyright	2019-07-27 06:18:05.000000000 +0000
@@ -5,9 +5,9 @@
  Mike Sheldrake and Alessandro Ranellucci <aar@cpan.org>.
 
 Files: *
-Copyright: 2010-2014, Steffen Mueller <smueller@cpan.org>
- 2011-2018, Mike Sheldrake
- 2012-2013, Alessandro Ranellucci <aar@cpan.org>
+Copyright: 2010, 2011, 2014, Steffen Mueller <smueller@cpan.org>
+ 2011, 2018, 2019, Mike Sheldrake
+ 2012, 2013, Alessandro Ranellucci <aar@cpan.org>
 License: BSL-1.0
 
 Files: src/clipper.*
diff -Nru libmath-clipper-perl-1.27/debian/upstream/metadata libmath-clipper-perl-1.29/debian/upstream/metadata
--- libmath-clipper-perl-1.27/debian/upstream/metadata	1970-01-01 00:00:00.000000000 +0000
+++ libmath-clipper-perl-1.29/debian/upstream/metadata	2019-07-27 06:18:05.000000000 +0000
@@ -0,0 +1,6 @@
+---
+Archive: CPAN
+Bug-Database: https://rt.cpan.org/Public/Dist/Display.html?Name=Math-Clipper
+Bug-Submit: bug-Math-Clipper@rt.cpan.org
+Contact: Steffen Mueller (smueller@cpan.org)
+Name: Math-Clipper
diff -Nru libmath-clipper-perl-1.27/lib/Math/Clipper.pm libmath-clipper-perl-1.29/lib/Math/Clipper.pm
--- libmath-clipper-perl-1.27/lib/Math/Clipper.pm	2018-05-14 00:52:12.000000000 +0000
+++ libmath-clipper-perl-1.29/lib/Math/Clipper.pm	2019-05-17 06:59:15.000000000 +0000
@@ -12,7 +12,7 @@
 
 BEGIN {
     use XSLoader;
-    $VERSION = '1.27';
+    $VERSION = '1.29';
     XSLoader::load('Math::Clipper', $VERSION);
 }
 
@@ -89,10 +89,10 @@
     # assume all coordinate vectors (points) have same number of coordinates; get that count from first one
     my $coord_count=scalar(@{$_[0]->[0]});
 
-    # return this with scaled data, so user can "unscale" Clipper results
+    # return this array of each column's calculated scale factor, so users can "unscale" Clipper results
     my @scale_vector;
 
-    # deal with each coordinate "column" (eg. x column, y column, ... possibly more)
+    # deal with each coordinate column (eg. x column, y column, ... possibly more)
     for (my $ci=0;$ci<$coord_count;$ci++) {
         my $maxc=$_[0]->[0]->[$ci];
         my $max_exp;
@@ -101,23 +101,34 @@
         foreach my $set (@_) {
             # for each "point"
             foreach my $vector (@{$set}) {
-                # looking for the maximum magnitude
+                # possibly update the the maximum magnitude seen in the column
                 if ($maxc<abs($vector->[$ci]) + $opts{margin}) {$maxc=abs($vector->[$ci]) + $opts{margin};}
-                # looking for the maximum exponent, when coords are in scientific notation
+                # look for the maximum exponent, when coords are in scientific notation
                 if (sprintf("%.20e",$vector->[$ci] + ($vector->[$ci]<0?-1:1)*$opts{margin}) =~ /[eE]([+-])0*(\d+)$/) {
                     my $exp1 = eval($1.$2);
-                    if (defined $vector->[$ci] && (!defined($max_exp) || $max_exp<$exp1)) {$max_exp=$exp1} 
+                    if (defined $vector->[$ci] && (!defined($max_exp) || $max_exp<$exp1)) {$max_exp=$exp1;}
                 }
-                else {croak "some coordinate didn't look like a number: ",$vector->[$ci]}
+                else {croak "some coordinate didn't look like a number: ",$vector->[$ci];}
             }
         }
 
         # Set scale for this coordinate column to the largest value that will convert the
-        # larges coordinate in the set to near the top of the available integer range.
+        # largest coordinate in the set to near the top of the available integer range.
         # There's never any question of how much precision the user wants -
         # we just always give as much as possible, within the integer limit in effect (53 bit or 64 bit)
 
-        $scale_vector[$ci]=10**(-$max_exp + ($intspecs{$opts{bits}}->{maxdigits} - 1));
+        $scale_vector[$ci] = 1;
+        my $power = -$max_exp + ($intspecs{$opts{bits}}->{maxdigits} - 1);
+
+        # We explicitly calculate the equivalent to 1**$power because
+        # the results of the system's pow() function underlying
+        # Perl's ** operator are sometimes inconsistent between
+        # BSD/clang and other systems.
+
+        for (my $pi = 0; $pi < abs($power); $pi++) {
+            if    ($power > 0) { $scale_vector[$ci] *= 10; }
+            elsif ($power < 0) { $scale_vector[$ci] /= 10; }
+        }
 
         if ($maxc * $scale_vector[$ci] > $intspecs{$opts{bits}}->{maxint}) {
             # Both 53 bit and 64 bit integers
@@ -127,13 +138,8 @@
             # zone just beyond the integer max, we'll only
             # scale up to 15 or 18 digit integers instead.
 
-            $scale_vector[$ci]=10**(-$max_exp + ($intspecs{$opts{bits}}->{maxdigits} - 2));
-
+            $scale_vector[$ci] /= 10;
         }
-
-        # brings behavior of FreeBSD + clang systems into harmony with others
-        $scale_vector[$ci] = 0.0 + sprintf("%.0f",$scale_vector[$ci]);
-
     }
 
     # If the "constrain" option is set false,
@@ -628,7 +634,7 @@
 
 Copyright (C) 2010, 2011, 2014 by Steffen Mueller
 
-Copyright (C) 2011, 2018 by Mike Sheldrake
+Copyright (C) 2011, 2018, 2019 by Mike Sheldrake
 
 Copyright (C) 2012, 2013 by Alessandro Ranellucci and Mike Sheldrake
 
diff -Nru libmath-clipper-perl-1.27/META.json libmath-clipper-perl-1.29/META.json
--- libmath-clipper-perl-1.27/META.json	2018-05-14 00:52:12.000000000 +0000
+++ libmath-clipper-perl-1.29/META.json	2019-05-17 06:59:15.000000000 +0000
@@ -32,7 +32,7 @@
    "provides" : {
       "Math::Clipper" : {
          "file" : "lib/Math/Clipper.pm",
-         "version" : "1.27"
+         "version" : "1.29"
       }
    },
    "release_status" : "stable",
@@ -41,6 +41,6 @@
          "http://dev.perl.org/licenses/"
       ]
    },
-   "version" : "1.27",
-   "x_serialization_backend" : "JSON::PP version 2.27300_01"
+   "version" : "1.29",
+   "x_serialization_backend" : "JSON::PP version 2.27400_02"
 }
diff -Nru libmath-clipper-perl-1.27/META.yml libmath-clipper-perl-1.29/META.yml
--- libmath-clipper-perl-1.27/META.yml	2018-05-14 00:52:12.000000000 +0000
+++ libmath-clipper-perl-1.29/META.yml	2019-05-17 06:59:15.000000000 +0000
@@ -11,7 +11,7 @@
   Module::Build: '0.38'
   Module::Build::WithXSpp: '0.14'
 dynamic_config: 1
-generated_by: 'Module::Build version 0.4224, CPAN::Meta::Converter version 2.150005'
+generated_by: 'Module::Build version 0.4224, CPAN::Meta::Converter version 2.150010'
 license: perl
 meta-spec:
   url: http://module-build.sourceforge.net/META-spec-v1.4.html
@@ -20,8 +20,8 @@
 provides:
   Math::Clipper:
     file: lib/Math/Clipper.pm
-    version: '1.27'
+    version: '1.29'
 resources:
   license: http://dev.perl.org/licenses/
-version: '1.27'
+version: '1.29'
 x_serialization_backend: 'CPAN::Meta::YAML version 0.018'
diff -Nru libmath-clipper-perl-1.27/src/myinit.h libmath-clipper-perl-1.29/src/myinit.h
--- libmath-clipper-perl-1.27/src/myinit.h	2018-05-14 00:52:12.000000000 +0000
+++ libmath-clipper-perl-1.29/src/myinit.h	2019-05-17 06:59:15.000000000 +0000
@@ -1,6 +1,10 @@
 #ifndef __clipper_myinit_h_
 #define __clipper_myinit_h_
 
+// fix build error under clang for pre-5.18 Perls
+#undef dNOOP
+#define dNOOP struct Perl___notused_struct
+
 #include "clipper.hpp"
 
 using namespace ClipperLib;