From b86a784e2d73beed0b31984440a53dc0fda1b054 Mon Sep 17 00:00:00 2001
From: Jose Luis Blanco-Claraco <joseluisblancoc@gmail.com>
Date: Mon, 6 Mar 2023 01:08:09 +0100
Subject: [PATCH] cmake: explicitly specifying the linker language for gtsam

Integrating upstream from: https://salsa.debian.org/science-team/gtsam/-/blob/master/debian/patches/0004-I-m-explicitly-specifying-the-linker-language-for-gt.patch

cc: original author @dkogan
---
 gtsam/CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gtsam/CMakeLists.txt b/gtsam/CMakeLists.txt
index 4e1f39762..efd0e9dc2 100644
--- a/gtsam/CMakeLists.txt
+++ b/gtsam/CMakeLists.txt
@@ -133,7 +133,8 @@ set_target_properties(gtsam PROPERTIES
     OUTPUT_NAME         gtsam
     CLEAN_DIRECT_OUTPUT 1
     VERSION             ${gtsam_version}
-    SOVERSION           ${gtsam_soversion})
+    SOVERSION           ${gtsam_soversion}
+    LINKER_LANGUAGE     CXX)
 
 # Append Eigen include path to either
 # system-eigen, or GTSAM eigen path