From f583e471b86444f5dcbb83f3751db7fb835ab0be Mon Sep 17 00:00:00 2001
From: Joseph Wang <joequant@gmail.com>
Date: Mon, 30 May 2022 14:44:31 +0800
Subject: [PATCH] pass CC variable to make (#30912)

Set CC to cc
---
 var/spack/repos/builtin/packages/pigz/package.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/var/spack/repos/builtin/packages/pigz/package.py b/var/spack/repos/builtin/packages/pigz/package.py
index 2252a90fbc..ed2eecce0e 100644
--- a/var/spack/repos/builtin/packages/pigz/package.py
+++ b/var/spack/repos/builtin/packages/pigz/package.py
@@ -21,7 +21,9 @@ class Pigz(MakefilePackage):
     depends_on('zlib')
 
     def build(self, spec, prefix):
-        make()
+        # force makefile to use cc as C compiler which is set by
+        # spack
+        make('CC=cc')
 
     def install(self, spec, prefix):
         mkdirp(prefix.bin)