sys-process/parallel: new recipe(#4992)

sys-process/parallel/patches/parallel-2020.04.22.patchset

@@ -0,0 +1,33 @@
+From 8d785ea26c4dda7b1165be3ffb8346c91def6fdc Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Przemys=C5=82aw=20S=C5=82aby?= <przemub@przemub.pl>
+Date: Mon, 18 May 2020 18:08:03 +0100
+Subject: [PATCH] Disable ps processing due to Haiku's team/thread model
+
+---
+ src/parallel | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/parallel b/src/parallel
+index 03a3549..8ddd1ef 100755
+--- a/src/parallel
++++ b/src/parallel
+@@ -1732,7 +1732,7 @@ sub parse_options(@) {
+     if($opt::bug) { ::die_bug("test-bug"); }
+     $Global::debug = $opt::D;
+     $Global::shell = $ENV{'PARALLEL_SHELL'} || parent_shell($$)
+-	|| $ENV{'SHELL'} || "/bin/sh";
++	|| $ENV{'SHELL'} || "/bin/bash";
+     if(not -x $Global::shell and not which($Global::shell)) {
+ 	::error("Shell '$Global::shell' not found.");
+ 	wait_and_exit(255);
+@@ -5746,6 +5746,7 @@ sub which(@) {
+ 	     'dragonfly' => $bsd,
+ 	     'freebsd' => $bsd,
+ 	     'gnu' => $sysv,
++	     'haiku' => "echo ps not supported",
+ 	     'hpux' => $sysv,
+ 	     'linux' => $sysv,
+ 	     'mirbsd' => $bsd,
+-- 
+2.26.0
+