phist needs sbang fix for build script (#20063)

var/spack/repos/builtin/packages/phist/package.py

@@ -5,6 +5,7 @@
 
 
 from spack import *
+import spack.hooks.sbang as sbang
 
 
 class Phist(CMakePackage):
@@ -101,6 +102,8 @@ class Phist(CMakePackage):
 
     patch('update_tpetra_gotypes.patch', when='@:1.8.99')
 
+    patch('sbang.patch', when='+fortran')
+
     # ###################### Dependencies ##########################
 
     depends_on('cmake@3.8:', type='build')
@@ -132,6 +135,9 @@ class Phist(CMakePackage):
     # to compile some OpenMP statements
     conflicts('%gcc@:4.9.1')
 
+    def setup_build_environment(self, env):
+        env.set('SPACK_SBANG', sbang.sbang_install_path())
+
     def cmake_args(self):
         spec = self.spec
 

var/spack/repos/builtin/packages/phist/sbang.patch

@@ -0,0 +1,8 @@
+diff --git a/fortran_bindings/cfwrapper.py.in b/fortran_bindings/cfwrapper.py.in
+index 6eb9051..874ce48 100755
+--- a/fortran_bindings/cfwrapper.py.in
++++ b/fortran_bindings/cfwrapper.py.in
+@@ -1,3 +1,4 @@
++#!/bin/bash $ENV{SPACK_SBANG}
+ #!${PYTHON_EXECUTABLE}
+ # -*- coding: utf-8 -*-