From c2f163ec9748c8287775039f4dc4465251d635f7 Mon Sep 17 00:00:00 2001
From: James Turner <james@flightgear.org>
Date: Sat, 19 Oct 2019 08:08:38 -0700
Subject: [PATCH] Fix linkage of fgviewer

Now we don't export OpenGL publiclly from SimGear, declare that
FGViewer uses OpenGL symbols directly, explicitly.
---
 utils/fgviewer/CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/utils/fgviewer/CMakeLists.txt b/utils/fgviewer/CMakeLists.txt
index cc258b0ed..f98f85626 100644
--- a/utils/fgviewer/CMakeLists.txt
+++ b/utils/fgviewer/CMakeLists.txt
@@ -48,6 +48,7 @@ endif()
 
 target_link_libraries(fgviewer
 	SimGearScene SimGearCore
+  ${OPENGL_LIBRARIES}
 	${FGVIEWER_RTI_LIBRARIES}
     ${GDAL_LIBRARY}
 )