cmake: set OpenGL_GL_PREFERENCE as a cached variable that can be modified via the command line

This allows the user to set this to LEGACY. This can be useful for
people under Linux using optirun/primusrun with "old" nvidia drivers
that don't support GLVND properly.
This commit is contained in:
Adrien Guinet 2019-11-03 12:48:25 +01:00
parent a7d4be79ae
commit 7f74707ad6
1 changed files with 2 additions and 1 deletions

View File

@ -423,7 +423,8 @@ endif()
include(CheckLib)
include(CheckCXXSourceRuns)
set(OpenGL_GL_PREFERENCE GLVND)
set(OpenGL_GL_PREFERENCE GLVND CACHE STRING "Linux-only: if GLVND, use the vendor-neutral GL libraries (default). If LEGACY, use the legacy ones (might be necessary to have optirun/primusrun work)")
set_property(CACHE OpenGL_GL_PREFERENCE PROPERTY STRINGS GLVND LEGACY)
find_package(OpenGL)
if (OPENGL_GL)
include_directories(${OPENGL_INCLUDE_DIR})