perl: Fix various reproducibile build issues

Add a patch which handles the following issues:

a) Remove the \n from configure_attr.sh since it gets quoted differently depending on
   whether the shell is bash or dash which can cause the test result to be incorrect.
   Reported upstream: arsv/perl-cross#87

b) Sort the order of the module lists from configure_mods.sh since otherwise
   the result isn't the same leading to makefile differences.
   Reported upstream: arsv/perl-cross#88

c) Sort the Encode::Byte byte_t.fnm file output (and the makefile depends whilst
   there for good measure)
   This needs to go to upstream perl (not done)

d) Use bash for perl-cross configure since otherwise trnl gets set to "\n" with bash
   and "" with dash
   Reported upstream: arsv/perl-cross#87

(From OE-Core rev: 482fd0d)

Signed-off-by: Richard Purdie <[email protected]>

meta/recipes-devtools/perl/files/determinism.patch

@@ -0,0 +1,81 @@
+Fixes to make the perl build reproducible:
+
+a) Remove the \n from configure_attr.sh since it gets quoted differently depending on
+   whether the shell is bash or dash which can cause the test result to be incorrect.
+   Reported upstream: https://github.com/arsv/perl-cross/issues/87
+
+b) Sort the order of the module lists from configure_mods.sh since otherwise
+   the result isn't the same leading to makefile differences.
+   Reported upstream: https://github.com/arsv/perl-cross/issues/88
+
+c) Sort the Encode::Byte byte_t.fnm file output (and the makefile depends whilst 
+   there for good measure)
+   This needs to go to upstream perl (not done)
+
+d) Use bash for perl-cross configure since otherwise trnl gets set to "\n" with bash
+   and "" with dash
+   Reported upstream: https://github.com/arsv/perl-cross/issues/87
+
+RP 2020/2/7
+
+Upstream-Status: Pending [75% submitted]
+Signed-off-by: Richard Purdie <[email protected]
+
+Index: perl-5.30.1/cnf/configure_attr.sh
+===================================================================
+--- perl-5.30.1.orig/cnf/configure_attr.sh
++++ perl-5.30.1/cnf/configure_attr.sh
+@@ -131,7 +131,7 @@ if not hinted d_c99_variadic_macros 'sup
+ 	try_start
+ 	try_add '#include <stdio.h>'
+ 	try_add '#define foo(fmt, ...) printf(fmt, __VA_ARGS__)'
+-	try_add 'int main(void) { foo("%i\n", 1234); return 0; }'
++	try_add 'int main(void) { foo("%i", 1234); return 0; }'
+ 	try_compile
+ 	resdef d_c99_variadic_macros 'supported' 'missing'
+ fi
+Index: perl-5.30.1/cnf/configure_mods.sh
+===================================================================
+--- perl-5.30.1.orig/cnf/configure_mods.sh
++++ perl-5.30.1/cnf/configure_mods.sh
+@@ -82,7 +82,7 @@ extonlyif() {
+ }
+
+ definetrimspaces() {
+-	v=`echo "$2" | sed -r -e 's/\s+/ /g' -e 's/^\s+//' -e 's/\s+$//'`
++	v=`echo "$2" | sed -r -e 's/\s+/ /g' -e 's/^\s+//' -e 's/\s+$//' | xargs -n1 | LANG=C sort | xargs`
+ 	define $1 "$v"
+ }
+
+Index: perl-5.30.1/cpan/Encode/Byte/Makefile.PL
+===================================================================
+--- perl-5.30.1.orig/cpan/Encode/Byte/Makefile.PL
++++ perl-5.30.1/cpan/Encode/Byte/Makefile.PL
+@@ -171,7 +171,7 @@ sub postamble
+     my $lengthsofar = length($str);
+     my $continuator = '';
+     $str .= "$table.c : $enc2xs Makefile.PL";
+-    foreach my $file (@{$tables{$table}})
++    foreach my $file (sort (@{$tables{$table}}))
+     {
+         $str .= $continuator.' '.$self->catfile($dir,$file);
+         if ( length($str)-$lengthsofar > 128*$numlines )
+@@ -189,7 +189,7 @@ sub postamble
+         qq{\n\t\$(PERL) $plib $enc2xs $ucopts -o \$\@ -f $table.fnm\n\n};
+     open (FILELIST, ">$table.fnm")
+         || die "Could not open $table.fnm: $!";
+-    foreach my $file (@{$tables{$table}})
++    foreach my $file (sort (@{$tables{$table}}))
+     {
+         print FILELIST $self->catfile($dir,$file) . "\n";
+     }
+Index: perl-5.30.1/cnf/configure
+===================================================================
+--- perl-5.30.1.orig/cnf/configure
++++ perl-5.30.1/cnf/configure
+@@ -1,4 +1,4 @@
+-#!/bin/sh
++#!/bin/bash
+
+ base=${0%/*}; test -z "$base" && base=.
+

meta/recipes-devtools/perl/perl_5.30.0.bb

@@ -21,6 +21,7 @@ SRC_URI = "https://www.cpan.org/src/5.0/perl-${PV}.tar.gz;name=perl \
            file://fix-setgroup.patch \
            file://0001-enc2xs-Add-environment-variable-to-suppress-comments.patch \
            file://0002-Constant-Fix-up-shebang.patch \
+           file://determinism.patch  \
            "
 SRC_URI_append_class-native = " \
            file://perl-configpm-switch.patch \