File superlu-restore-compatibility-v6.patch of Package superlu

From 57a7dba4ddb8f3edc2dd2d8c529b2abd31977356 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20Gr=C3=BCninger?= <foss@grueninger.de>
Date: Sat, 8 Nov 2025 10:20:38 +0100
Subject: [PATCH] Restory compatibility with SuperLU < 7

Removed probably by accident in 0bbd6571bd839d866bff6a8ff1eaa812a8c31463
---
 SRC/slu_scomplex.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/SRC/slu_scomplex.h b/SRC/slu_scomplex.h
index a9b728a6..96703912 100644
--- a/SRC/slu_scomplex.h
+++ b/SRC/slu_scomplex.h
@@ -30,6 +30,11 @@ at the top-level directory.
 
 typedef struct { float r, i; } singlecomplex;
 
+#if defined(SUPERLU_TYPEDEF_COMPLEX) || DOXYGEN
+//! \brief backward compatibility with older versions of SuperLU
+//! Add -D enable_compatibility_complex=ON to your CMake call
+typedef singlecomplex complex;
+#endif
 
 /* Macro definitions */