>>> mesa3d-demos 9.0.0 Extracting
xzcat /home/buildroot/instance-0/dl/mesa3d-demos/mesa-demos-9.0.0.tar.xz | /home/buildroot/instance-0/output-1/host/bin/tar --strip-components=1 -C /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0   -xf -
>>> mesa3d-demos 9.0.0 Patching

Applying 0001-demos-makes-opengl-an-optional-component.patch using patch: 
patching file meson.build
patching file meson_options.txt
patching file src/egl/meson.build
patching file src/util/meson.build

Applying 0002-meson-fix-glx-detection-without-glvnd.patch using patch: 
patching file meson.build
Hunk #1 succeeded at 102 (offset 3 lines).
>>> mesa3d-demos 9.0.0 Configuring
rm -rf /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0//build
mkdir -p /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0//build
sed -e "/^\[binaries\]$/s:$::" -e "/^\[properties\]$/s:$::"         -e "s%@TARGET_CC@%/home/buildroot/instance-0/output-1/host/bin/x86_64-linux-gcc%g" -e "s%@TARGET_CXX@%/home/buildroot/instance-0/output-1/host/bin/x86_64-linux-g++%g" -e "s%@TARGET_AR@%/home/buildroot/instance-0/output-1/host/bin/x86_64-linux-gcc-ar%g" -e "s%@TARGET_FC@%/home/buildroot/instance-0/output-1/host/bin/x86_64-linux-gfortran%g" -e "s%@TARGET_STRIP@%/home/buildroot/instance-0/output-1/host/bin/x86_64-linux-strip%g" -e "s%@TARGET_ARCH@%x86_64%g" -e "s%@TARGET_CPU@%%g" -e "s%@TARGET_ENDIAN@%little%g" -e "s%@TARGET_FCFLAGS@%%g" -e "s%@TARGET_CFLAGS@%'-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-O2', '-g0'%g" -e "s%@TARGET_LDFLAGS@%%g" -e "s%@TARGET_CXXFLAGS@%'-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-O2', '-g0'%g" -e "s%@BR2_CMAKE@%/home/buildroot/instance-0/output-1/host/bin/cmake%g" -e "s%@PKGCONF_HOST_BINARY@%/home/buildroot/instance-0/output-1/host/bin/pkgconf%g" -e "s%@HOST_DIR@%/home/buildroot/instance-0/output-1/host%g" -e "s%@STAGING_DIR@%/home/buildroot/instance-0/output-1/host/x86_64-buildroot-linux-musl/sysroot%g" -e "s%@STATIC@%false%g" /home/buildroot/instance-0/buildroot/support/misc/cross-compilation.conf.in > /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0//build/cross-compilation.conf
PATH="/home/buildroot/instance-0/output-1/host/bin:/home/buildroot/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" CC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++"  PYTHONNOUSERSITE=y /home/buildroot/instance-0/output-1/host/bin/meson setup --prefix=/usr --libdir=lib --default-library=shared --buildtype=release --cross-file=/home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0//build/cross-compilation.conf -Db_pie=false -Db_staticpic=true -Dstrip=false -Dbuild.pkg_config_path=/home/buildroot/instance-0/output-1/host/lib/pkgconfig -Dbuild.cmake_prefix_path=/home/buildroot/instance-0/output-1/host/lib/cmake -Dgles1=disabled -Dgl=disabled -Dx11=disabled -Degl=enabled -Dgles2=disabled -Dlibdrm=enabled -Dosmesa=disabled -Dwayland=disabled /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0/ /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0//build
The Meson build system
Version: 1.3.1
Source dir: /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0
Build dir: /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0/build
Build type: cross build
Project name: mesa-demos
Project version: 9.0.0
C compiler for the host machine: /home/buildroot/instance-0/output-1/host/bin/x86_64-linux-gcc (gcc 12.3.0 "x86_64-linux-gcc.br_real (Buildroot 2021.11-11272-ge2962af) 12.3.0")
C linker for the host machine: /home/buildroot/instance-0/output-1/host/bin/x86_64-linux-gcc ld.bfd 2.41
C++ compiler for the host machine: /home/buildroot/instance-0/output-1/host/bin/x86_64-linux-g++ (gcc 12.3.0 "x86_64-linux-g++.br_real (Buildroot 2021.11-11272-ge2962af) 12.3.0")
C++ linker for the host machine: /home/buildroot/instance-0/output-1/host/bin/x86_64-linux-g++ ld.bfd 2.41
C compiler for the build machine: /usr/bin/gcc (gcc 10.2.1 "gcc (Debian 10.2.1-6) 10.2.1 20210110")
C linker for the build machine: /usr/bin/gcc ld.bfd 2.35.2
C++ compiler for the build machine: /usr/bin/g++ (gcc 10.2.1 "g++ (Debian 10.2.1-6) 10.2.1 20210110")
C++ linker for the build machine: /usr/bin/g++ ld.bfd 2.35.2
Build machine cpu family: x86_64
Build machine cpu: x86_64
Host machine cpu family: x86_64
Host machine cpu: 
Target machine cpu family: x86_64
Target machine cpu: 
Library m found: YES
Library winmm found: NO
Dependency gl skipped: feature gl disabled
Found pkg-config: YES (/home/buildroot/instance-0/output-1/host/bin/pkgconf) 1.6.3
Found CMake: /home/buildroot/instance-0/output-1/host/bin/cmake (3.28.3)
Run-time dependency epoll-shim found: NO (tried pkgconfig and cmake)
Dependency glesv1_cm skipped: feature gles1 disabled
Dependency glesv2 skipped: feature gles2 disabled
Dependency osmesa skipped: feature osmesa disabled
Run-time dependency egl found: YES 24.0.7
Run-time dependency vulkan found: YES 1.3.262
Run-time dependency libdrm found: YES 2.4.120
Dependency x11, xext skipped: feature x11 disabled
Dependency wayland-client, wayland-egl, xkbcommon skipped: feature wayland disabled
Dependency xcb, xkbcommon, xkbcommon-x11 skipped: feature x11 disabled
Run-time dependency threads found: YES
Run-time dependency glu found: NO (tried pkgconfig and cmake)
Has header "GL/glu.h" : NO 
Run-time dependency glx found: NO (tried pkgconfig and cmake)
Run-time dependency gbm found: YES 24.0.7
Checking for function "dlopen" : YES 
Run-time dependency glut found: NO (tried pkgconfig and cmake)
Has header "GL/glut.h" : NO 
Program glslangValidator found: NO

../output-1/build/mesa3d-demos-9.0.0/meson.build:158:17: ERROR: Program 'glslangValidator' not found or not executable

A full log can be found at /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0/build/meson-logs/meson-log.txt
make: *** [package/pkg-generic.mk:273: /home/buildroot/instance-0/output-1/build/mesa3d-demos-9.0.0/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/instance-0/buildroot'