From e37c099ddb2e0a341abf615da0d292a73abc4370 Mon Sep 17 00:00:00 2001
From: Henri Menke <henri@henrimenke.de>
Date: Tue, 13 Feb 2024 08:10:51 +0100
Subject: [PATCH] clfft: workaround compiler error (#42519)

---
 var/spack/repos/builtin/packages/clfft/package.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/var/spack/repos/builtin/packages/clfft/package.py b/var/spack/repos/builtin/packages/clfft/package.py
index 38deb524c77..a51360a6085 100644
--- a/var/spack/repos/builtin/packages/clfft/package.py
+++ b/var/spack/repos/builtin/packages/clfft/package.py
@@ -35,6 +35,12 @@ class Clfft(CMakePackage):
 
     root_cmakelists_dir = "src"
 
+    def flag_handler(self, name, flags):
+        if name == "cxxflags":
+            # https://github.com/clMathLibraries/clFFT/issues/237
+            flags.append("-fpermissive")
+        return (flags, None, None)
+
     def cmake_args(self):
         args = [
             self.define_from_variant("BUILD_CLIENT", "client"),