[llvm] update to 12.0.0, enable zlib and libxml2 (#17302)

* [llvm] update to 12.0.0, enable zlib and libxml2

* [llvm] disable libxml2 by default, arm64-windows should be supported

* [llvm] try to fix build with ffi on Windows #17663

* [llvm] re-enable libxml2

* [llvm] fix formatting

* [llvm] overwrite version

* [mesa] update to v21.1.0

* [llvm] update ci.baseline

* [halide] update to the latest master commit

* [llvm] disable libxml2 port until complete PR #15390

* update versions

* [llvm] fix disabling of external libraries

* update version

* update ci.baseline

* update ci.baseline

* fix typo

* [llvm] fix libxml2 (depends on #17945)

* revert "[halide] update to the latest master commit"

* update versions

* [halide] fix zlib dependency for tools

* update versions

* [halide] update to official release v12.0.0

* update versions

* [halide] update to v12.0.1

* update version

* [mesa] remove llvm from defaults

* update version

* update ci.baseline

* [mesa] update to v21.1.2 and fix build with LLVM on Windows

* [llvm] allow to build libunwind project on Windows

* update versions

* [mesa] update ci.baseline.txt to disable x64-windows-static-md, may be fixed in the PR #18495

1 files changed, 0 insertions, 80 deletions

diff --git a/ports/mesa/dual-osmesa.patch b/ports/mesa/dual-osmesa.patch
deleted file mode 100644
index 8acebe64b..000000000
--- a/ports/mesa/dual-osmesa.patch
+++ /dev/null
@@ -1,80 +0,0 @@
-diff --git a/include/meson.build b/include/meson.build

-index a64d9373a92..22c50eb5eb7 100644

---- a/include/meson.build

-+++ b/include/meson.build

-@@ -89,7 +89,7 @@ if with_egl

-   )

- endif

- 

--if with_osmesa != 'none'

-+if with_osmesa != []

-   install_headers('GL/osmesa.h', subdir : 'GL')

- endif

- 

-diff --git a/meson.build b/meson.build

-index 898d025f066..d73818e7ce5 100644

---- a/meson.build

-+++ b/meson.build

-@@ -444,7 +444,7 @@ if with_any_vk and (with_platform_x11 and not with_dri3)

-   error('Vulkan drivers require dri3 for X11 support')

- endif

- if with_dri

--  if with_glx == 'disabled' and not with_egl and not with_gbm and with_osmesa != 'classic'

-+  if with_glx == 'disabled' and not with_egl and not with_gbm and not with_osmesa.contains('classic')

-     error('building dri drivers require at least one windowing system or classic osmesa')

-   endif

- endif

-@@ -1508,8 +1508,8 @@ else

-   dep_unwind = null_dep

- endif

- 

--if with_osmesa != 'none'

--  if with_osmesa == 'gallium' and not with_gallium_softpipe

-+if with_osmesa != []

-+  if with_osmesa.contains('gallium') and not with_gallium_softpipe

-     error('OSMesa gallium requires gallium softpipe or llvmpipe.')

-   endif

-   if host_machine.system() == 'windows'

-@@ -1710,10 +1710,10 @@ lines = ['',

-                                                     with_gles2 ? 'yes' : 'no'),

- ]

- 

--if with_osmesa != 'none'

-+if with_osmesa != []

-   lines += ''

-   suffix = ''

--  if with_osmesa == 'gallium'

-+  if with_osmesa.contains('gallium')

-     suffix = '(Gallium)'

-   endif

-   lines += 'OSMesa:          lib' + osmesa_lib_name + suffix

-diff --git a/meson_options.txt b/meson_options.txt

-index 626baf3d5c2..cb3dc3b383f 100644

---- a/meson_options.txt

-+++ b/meson_options.txt

-@@ -295,9 +295,9 @@ option(

- )

- option(

-   'osmesa',

--  type : 'combo',

--  value : 'none',

--  choices : ['none', 'classic', 'gallium'],

-+  type : 'array',

-+  value : [],

-+  choices : ['classic', 'gallium'],

-   description : 'Build OSmesa.'

- )

- option(

-diff --git a/src/mesa/meson.build b/src/mesa/meson.build

-index fa5c54cc6fb..f7b223862fa 100644

---- a/src/mesa/meson.build

-+++ b/src/mesa/meson.build

-@@ -744,7 +744,7 @@ libmesa_gallium = static_library(

- )

- 

- subdir('drivers/dri')

--if with_osmesa == 'classic'

-+if with_osmesa.contains('classic')

-   subdir('drivers/osmesa')

- endif

- if with_glx == 'xlib'