OpenGL/Vulkan not working on Wayland

Archlinux, Mesa 19.1 without glx and glvnd, Weston. Vulkan apps and EGL are working elsewhere. Quick Controls 1 web browser example also works and shows WebGL working.

OpenGL example not working

QT_QPA_PLATFORM=wayland ./cube??
QOpenGLShaderProgram: could not create shader program
QOpenGLShader: could not create shader
Shader Program link failed

Quick Controls 2 example not working

QT_QPA_PLATFORM=wayland ./minimal
QOpenGLShaderProgram: could not create shader program
QOpenGLShader: could not create shader
Shader Program link failed.

Vulkan example not working

QT_QPA_PLATFORM=wayland ./hellovulkantriangle
This plugin does not support createPlatformVulkanInstance
QVulkanInstance: Failed to initialize Vulkan
Failed to create Vulkan instance: 0
Aborted

No amount of changing configuration options fixes the issue.

qtbase configuration (note didn't work with opengles3 enabled either)

./configure -confirm-license -opensource -v \
-prefix /usr \
-docdir /usr/share/doc/qt \
-headerdir /usr/include/qt \
-archdatadir /usr/lib/qt \
-datadir /usr/share/qt \
-sysconfdir /etc/xdg \
-openssl-linked \
-nomake examples \
-no-rpath \
-optimized-qmake \
-dbus-linked \
-system-harfbuzz \
-journald \
-no-xcb \
-vulkan \
-no-icu \
-egl \
-opengl es2 \
-no-opengles3 \
-no-gtk \
-no-eglfs \
-qt-sqlite \
-qt-libpng \
-no-xcb-xlib \
-no-use-gold-linker \
-reduce-relocations