From 83d05ea8228790d2a44ba8393393fb7a57ee498b Mon Sep 17 00:00:00 2001
From: Elias Daler <eliasdaler@yandex.ru>
Date: Tue, 14 Aug 2018 00:06:31 +0300
Subject: [PATCH] Fix CMP0072 CMake warning - also allow user to set
OpenGL_GL_PREFERENCE
---
src/SFML/Window/CMakeLists.txt | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/SFML/Window/CMakeLists.txt b/src/SFML/Window/CMakeLists.txt
index 916c1dcd..1fe8b5a4 100644
--- a/src/SFML/Window/CMakeLists.txt
+++ b/src/SFML/Window/CMakeLists.txt
@@ -235,6 +235,13 @@ if(SFML_OS_LINUX OR SFML_OS_FREEBSD OR SFML_OPENBSD)
target_link_libraries(sfml-window PRIVATE X11)
endif()
+# CMake 3.11 and later prefer to choose GLVND, but we choose legacy OpenGL for backward compability
+# (unless the OpenGL_GL_PREFERENCE was explicitly set)
+# See CMP0072 for more details (cmake --help-policy CMP0072)
+if ((NOT ${CMAKE_VERSION} VERSION_LESS 3.11) AND (NOT OpenGL_GL_PREFERENCE))
+ set(OpenGL_GL_PREFERENCE "LEGACY")
+endif()
+
if(SFML_OPENGL_ES)
if(SFML_OS_IOS)
target_link_libraries(sfml-window PRIVATE "-framework OpenGLES")
@@ -242,7 +249,7 @@ if(SFML_OPENGL_ES)
target_link_libraries(sfml-window PRIVATE EGL GLESv1_CM)
endif()
else()
- sfml_find_package(OpenGL INCLUDE "OPENGL_INCLUDE_DIR" LINK "OPENGL_gl_LIBRARY")
+ sfml_find_package(OpenGL INCLUDE "OPENGL_INCLUDE_DIR" LINK "OPENGL_LIBRARIES")
target_link_libraries(sfml-window PRIVATE OpenGL)
endif()