[Mesa-stable] [PATCH v2] meson: Don't allow building EGL on Windows or MacOS

[Dylan Baker]

Currently mesa only supports EGL on Unix like systems, cygwin, and
haiku. Meson should actually enforce this. This fixes the default build
on MacOS.

v2: - invert the condition, mark darwin and windows as not supported
      instead of trying to mark what is supported.

CC: 18.2 <mesa-stable at lists.freedesktop.org>
---
 meson.build | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index e4b9f04949c..2894c4931ac 100644
--- a/meson.build
+++ b/meson.build
@@ -306,7 +306,10 @@ endif
 
 _egl = get_option('egl')
 if _egl == 'auto'
-  with_egl = with_dri and with_shared_glapi and with_platforms
+  with_egl = (
+    not ['darwin', 'windows'].contains(host_machine.system() and
+    with_dri and with_shared_glapi and with_platforms
+  )
 elif _egl == 'true'
   if not with_dri
     error('EGL requires dri')
@@ -316,6 +319,8 @@ elif _egl == 'true'
     error('No platforms specified, consider -Dplatforms=drm,x11,surfaceless at least')
   elif not ['disabled', 'dri'].contains(with_glx)
     error('EGL requires dri, but a GLX is being built without dri')
+  elif ['darwin', 'windows'].contains(host_machine.system())
+    error('EGL is not valid on systems that don\'t use KMS except Haiku.')
   endif
   with_egl = true
 else
-- 
2.19.0