.github: build xf86bigfont on the CI lanes, keep it off by default

PR #3202 both fixed the extension's cross-platform build *and* flipped the
meson default on. Keep the compile fixes, but restore the meson default to
off: xf86bigfont is a low-relevance legacy optimisation (server-side core
fonts; modern toolkits render client-side) that was deliberately off, and
re-enabling it for all downstreams isn't wanted.

Instead pass -Dxf86bigfont=true on the CI build lanes, so the extension
stays compiled and validated across all platforms in CI without changing
the shipped default.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

.github/workflows/build-xserver.yml

@@ -39,7 +39,7 @@ jobs:
 
     xserver-build-ubuntu-no-gbm:
         env:
-            MESON_ARGS: -Dprefix=/usr -Dxephyr=true -Dwerror=true -Dxcsecurity=true -Dgbm=false -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=true -Dtest_xephyr_gles=false
+            MESON_ARGS: -Dprefix=/usr -Dxephyr=true -Dwerror=true -Dxcsecurity=true -Dgbm=false -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=true -Dtest_xephyr_gles=false -Dxf86bigfont=true
             LIBGL_ALWAYS_SOFTWARE: 1
             GALLIUM_DRIVER: llvmpipe
             PIGLIT_PLATFORM: x11_egl
@@ -82,7 +82,7 @@ jobs:
 
     xserver-build-ubuntu:
         env:
-            MESON_ARGS: -Dprefix=/usr -Dxephyr=true -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=true -Dtest_xephyr_gles=false
+            MESON_ARGS: -Dprefix=/usr -Dxephyr=true -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=true -Dtest_xephyr_gles=false -Dxf86bigfont=true
             LIBGL_ALWAYS_SOFTWARE: 1
             GALLIUM_DRIVER: llvmpipe
             PIGLIT_PLATFORM: x11_egl
@@ -146,7 +146,7 @@ jobs:
 
     xserver-build-ubuntu-debug:
         env:
-            MESON_ARGS: --buildtype=debug -Dprefix=/usr -Dxephyr=true -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=true -Dtest_xephyr_gles=false
+            MESON_ARGS: --buildtype=debug -Dprefix=/usr -Dxephyr=true -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=true -Dtest_xephyr_gles=false -Dxf86bigfont=true
             LIBGL_ALWAYS_SOFTWARE: 1
             GALLIUM_DRIVER: llvmpipe
             PIGLIT_PLATFORM: x11_egl
@@ -347,7 +347,7 @@ jobs:
     xserver-build-mingw32-ubuntu:
         runs-on: ubuntu-latest
         env:
-            MESON_ARGS: -Dprefix=/home/runner/x11 --cross-file=.github/scripts/mingw32/cross-i686-w64-mingw32.txt -Dwerror=true -Dglx=false -Dlisten_tcp=true -Dxvmc=true -Dxv=true -Dxvfb=true -Dxnest=true -Dxephyr=true -Dxfbdev=false
+            MESON_ARGS: -Dprefix=/home/runner/x11 --cross-file=.github/scripts/mingw32/cross-i686-w64-mingw32.txt -Dwerror=true -Dglx=false -Dlisten_tcp=true -Dxvmc=true -Dxv=true -Dxvfb=true -Dxnest=true -Dxephyr=true -Dxfbdev=false -Dxf86bigfont=true
         needs: ubuntu-fetch-pkg
         steps:
             - name: Check out repository code
@@ -386,7 +386,7 @@ jobs:
             github.event_name != 'pull_request' ||
             github.event.pull_request.head.repo.full_name != github.repository
         env:
-            MESON_ARGS: -Dprefix=/tmp -Dglx=false -Dxnest=false -Dxfbdev=false
+            MESON_ARGS: -Dprefix=/tmp -Dglx=false -Dxnest=false -Dxfbdev=false -Dxf86bigfont=true
             X11_PREFIX: /Users/runner/x11
             X11_BUILD_DIR: /Users/runner/build-deps
         runs-on: macos-latest
@@ -448,7 +448,7 @@ jobs:
         timeout-minutes: 90
         env:
             MYTOKEN : ${{ secrets.MYTOKEN }}
-            MESON_ARGS: -Dprefix=/usr -Dxephyr=true -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=false
+            MESON_ARGS: -Dprefix=/usr -Dxephyr=true -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=false -Dxf86bigfont=true
         steps:
             - uses: actions/checkout@v6
             - uses: ./.github/actions/ubuntu-pkg-cache
@@ -504,7 +504,7 @@ jobs:
         needs: ubuntu-fetch-pkg
         timeout-minutes: 90
         env:
-            MESON_ARGS: -Dwerror=true -Dxephyr=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=false
+            MESON_ARGS: -Dwerror=true -Dxephyr=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=false -Dxf86bigfont=true
         steps:
             - uses: actions/checkout@v6
             - uses: ./.github/actions/ubuntu-pkg-cache
@@ -561,7 +561,7 @@ jobs:
         needs: ubuntu-fetch-pkg
         timeout-minutes: 90
         env:
-            MESON_ARGS: -Dwerror=true -Dxephyr=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=false
+            MESON_ARGS: -Dwerror=true -Dxephyr=true -Dxorg=true -Dxvfb=true -Dxnest=true -Dxfbdev=false -Dxf86bigfont=true
         steps:
             - uses: actions/checkout@v6
             - uses: ./.github/actions/ubuntu-pkg-cache
@@ -623,7 +623,7 @@ jobs:
             # libdrm-backed direct-rendering extensions can't work (and OI's
             # xf86drm.h pulls a drm.h that only exists for Linux). glx stays on
             # (Mesa is packaged) for indirect/software GLX.
-            MESON_ARGS: -Dwerror=true -Dxvfb=true -Dxnest=true -Dxorg=false -Dxephyr=false -Dxfbdev=false -Ddri2=false -Ddri3=false
+            MESON_ARGS: -Dwerror=true -Dxvfb=true -Dxnest=true -Dxorg=false -Dxephyr=false -Dxfbdev=false -Ddri2=false -Ddri3=false -Dxf86bigfont=true
         steps:
             - uses: actions/checkout@v6
             - uses: ./.github/actions/ubuntu-pkg-cache
@@ -645,7 +645,7 @@ jobs:
         needs: ubuntu-fetch-pkg
         timeout-minutes: 90
         env:
-            MESON_ARGS: -Dwerror=true -Dxvfb=true -Dxnest=true -Dxorg=false -Dxephyr=false -Dxfbdev=false -Ddri2=false -Ddri3=false
+            MESON_ARGS: -Dwerror=true -Dxvfb=true -Dxnest=true -Dxorg=false -Dxephyr=false -Dxfbdev=false -Ddri2=false -Ddri3=false -Dxf86bigfont=true
         steps:
             - uses: actions/checkout@v6
             - uses: ./.github/actions/ubuntu-pkg-cache
@@ -720,7 +720,7 @@ jobs:
             # deprecated") that -Werror (-Werror=cpp) turns fatal in every TU using
             # libbsd. That's a musl/libbsd toolchain quirk, not an xserver warning, so
             # it can't be fixed in-tree (unlike solaris/gentoo/openbsd, now tightened).
-            MESON_ARGS: -Dprefix=/usr -Dxcsecurity=true -Dxorg=true -Dxephyr=true -Dxvfb=true -Dxnest=true -Dxfbdev=false -Dsystemd_logind=false -Dwerror=false
+            MESON_ARGS: -Dprefix=/usr -Dxcsecurity=true -Dxorg=true -Dxephyr=true -Dxvfb=true -Dxnest=true -Dxfbdev=false -Dsystemd_logind=false -Dwerror=false -Dxf86bigfont=true
         steps:
             # actions/checkout is a JS action; GitHub's bundled Node is
             # glibc-linked, so musl-based Alpine needs gcompat to run it.
@@ -775,7 +775,7 @@ jobs:
         container:
             image: ghcr.io/x11libre/xserver-gentoo-deps:${{ needs.gentoo-deps-image.outputs.tag }}
         env:
-            MESON_ARGS: -Dprefix=/usr -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxephyr=true -Dxvfb=true -Dxnest=true -Dxfbdev=false -Dsystemd_logind=false
+            MESON_ARGS: -Dprefix=/usr -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxephyr=true -Dxvfb=true -Dxnest=true -Dxfbdev=false -Dsystemd_logind=false -Dxf86bigfont=true
         steps:
             - name: Check out repository code
               uses: actions/checkout@v6
@@ -795,7 +795,7 @@ jobs:
             # an entitlement on public runners.
             image: almalinux:${{ matrix.rhelver }}
         env:
-            MESON_ARGS: -Dprefix=/usr -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxephyr=true -Dxvfb=true -Dxnest=true -Dxfbdev=false -Dsystemd_logind=false
+            MESON_ARGS: -Dprefix=/usr -Dwerror=true -Dxcsecurity=true -Dxorg=true -Dxephyr=true -Dxvfb=true -Dxnest=true -Dxfbdev=false -Dsystemd_logind=false -Dxf86bigfont=true
         steps:
             - name: Check out repository code
               uses: actions/checkout@v6