From d4d446893aff75f590dd879a6e293b1db84816f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=AE=8B=E6=96=87=E6=AD=A6?= <iyzsong@member.fsf.org>
Date: Wed, 12 Feb 2025 11:14:36 +0800
Subject: [PATCH] gnu: opencascade-occt: Fix build with newer freetype.

* gnu/packages/maths.scm (opencascade-occt) [arguments]: Add -fpermissive to
CMAKE_CXX_FLAGS.

Change-Id: I0fb7dc3606719c02af9b7f68bc8942813f6150d9
---
 gnu/packages/maths.scm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 26603db2a8f076dec7e94808eea10752eb0f067e..ce06a8a82113ad8b1b3a20539876807bc172924a 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -3527,7 +3527,8 @@ script files.")
        ;; freeimage version 3.17 library leads to 'undefined
        ;; reference' errors.
        #:configure-flags
-        (list "-DUSE_FREEIMAGE:BOOL=OFF"
+        (list "-DCMAKE_CXX_FLAGS=-fpermissive" ;from unsigned char* to char*
+              "-DUSE_FREEIMAGE:BOOL=OFF"
               "-DUSE_TBB:BOOL=ON"
               "-DUSE_VTK:BOOL=OFF"
               "-DBUILD_DOC_Overview:BOOL=OFF"