From 6e7f31fefe4398fafb04a006db4bbf834516d3d1 Mon Sep 17 00:00:00 2001
From: "Steven G. Johnson" <stevenj@alum.mit.edu>
Date: Thu, 26 Jul 2018 12:58:26 -0400
Subject: [PATCH] make sure testopt is linked with C++ linker for nlopt_cxx

---
 test/CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 8871312..224ac9c 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -4,6 +4,9 @@ add_custom_target (tests)
 add_executable (testopt testfuncs.c testfuncs.h testopt.c
   ${PROJECT_SOURCE_DIR}/src/util/timer.c ${PROJECT_SOURCE_DIR}/src/util/mt19937ar.c ${PROJECT_SOURCE_DIR}/src/util/nlopt-getopt.c)
 target_link_libraries (testopt ${nlopt_lib})
+if (NLOPT_CXX)
+  set_target_properties(testopt PROPERTIES LINKER_LANGUAGE CXX)
+endif ()
 target_include_directories (testopt PRIVATE ${NLOPT_PRIVATE_INCLUDE_DIRS})
 add_dependencies (tests testopt)
 
-- 
2.30.2