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Fix CMake warning related to CMP0072

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Albrecht Schlosser 2021-02-28 14:56:56 +01:00
parent ae41dc46b9
commit 266b5e7cdd
1 changed files with 13 additions and 7 deletions
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20
CMakeLists.txt
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@ -28,14 +28,20 @@
# Minimum CMake version required by FLTK 1.4 (06/2020, work in progress)
cmake_minimum_required (VERSION 3.2.3 FATAL_ERROR)
# Use "legacy mode" of FindOpenGL (avoid CMake developer warning)
# Note: we're using FindOpenGL with `OPENGL_LIBRARIES` and not (yet)
# the `OpenGL::GL` target. May be changed in the future.
# See https://cmake.org/cmake/help/latest/policy/CMP0072.html
#######################################################################
if (POLICY CMP0072)
cmake_policy (SET CMP0072 OLD)
endif ()
# Use "legacy mode" of FindOpenGL (avoid CMake developer warning).
# Note: we're using FindOpenGL with `OPENGL_LIBRARIES` and not (yet)
# the `OpenGL::GL` target. This may be changed in the future.
# See https://cmake.org/cmake/help/latest/policy/CMP0072.html
# Update Feb 28, 2021: To avoid a warning about "OLD" policies we set
# OpenGL_GL_PREFERENCE directly to "LEGACY" (other option: "GLVND").
# if (POLICY CMP0072)
# cmake_policy (SET CMP0072 OLD)
# endif ()
set (OpenGL_GL_PREFERENCE LEGACY)
#######################################################################
# define the FLTK project and version