From f0ed159a1b4376e38347d9e35613716ab7684594 Mon Sep 17 00:00:00 2001
From: Mikael Simberg <mikael.simberg@iki.fi>
Date: Mon, 14 Aug 2023 17:03:13 +0200
Subject: Add patch to build silo on nixos (#39375)

Change the shebang in mkinc from /usr/bin/perl to /usr/bin/env perl for
portability to systems that don't necessarily have perl in /usr/bin.
Also adds perl as a build-time dependency.
---
 .../packages/silo/mkinc-usr-bin-env-perl.patch     | 23 ++++++++++++++++++++++
 var/spack/repos/builtin/packages/silo/package.py   |  4 ++++
 2 files changed, 27 insertions(+)
 create mode 100644 var/spack/repos/builtin/packages/silo/mkinc-usr-bin-env-perl.patch

(limited to 'var')

diff --git a/var/spack/repos/builtin/packages/silo/mkinc-usr-bin-env-perl.patch b/var/spack/repos/builtin/packages/silo/mkinc-usr-bin-env-perl.patch
new file mode 100644
index 0000000000..13f233010c
--- /dev/null
+++ b/var/spack/repos/builtin/packages/silo/mkinc-usr-bin-env-perl.patch
@@ -0,0 +1,23 @@
+diff --git a/config/mkinc b/config/mkinc
+index e52bb64..6d96176 100755
+--- a/config/mkinc
++++ b/config/mkinc
+@@ -17,7 +17,7 @@ exec perl /tmp/visitperl$$ $0 ${1+"$@"}
+ unlink $0;
+ $0 = shift @ARGV;
+
+-#!/usr/bin/perl
++#!/usr/bin/env perl
+ #########################################################################
+ # Copyright (C) 1994-2016 Lawrence Livermore National Security, LLC.
+ # LLNL-CODE-425250.
+diff --git a/config/mklite b/config/mklite
+index f9394a9..274c867 100755
+--- a/config/mklite
++++ b/config/mklite
+@@ -1,4 +1,4 @@
+-#!/usr/bin/perl
++#!/usr/bin/env perl
+
+ #
+ # Tool to generate lite_pdb.h file from pdb.h and score.h headers.
diff --git a/var/spack/repos/builtin/packages/silo/package.py b/var/spack/repos/builtin/packages/silo/package.py
index 60abdb1bf9..04427ae5f2 100644
--- a/var/spack/repos/builtin/packages/silo/package.py
+++ b/var/spack/repos/builtin/packages/silo/package.py
@@ -46,6 +46,7 @@ class Silo(AutotoolsPackage):
     variant("hzip", default=True, description="Enable hzip support")
     variant("fpzip", default=True, description="Enable fpzip support")
 
+    depends_on("perl", type="build")
     depends_on("m4", type="build", when="+shared")
     depends_on("autoconf", type="build", when="+shared")
     depends_on("autoconf-archive", type="build", when="+shared")
@@ -89,6 +90,9 @@ class Silo(AutotoolsPackage):
     # zfp include missing
     patch("zfp_error.patch", when="@4.11 +hdf5")
 
+    # use /usr/bin/env perl for portability
+    patch("mkinc-usr-bin-env-perl.patch")
+
     def flag_handler(self, name, flags):
         spec = self.spec
         if name == "ldflags":
-- 
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