added bootstrapping mesa to build-support

1 files changed, 177 insertions, 0 deletions

diff --git a/build-support/disabled/mesa/mesa b/build-support/disabled/mesa/mesa
new file mode 100644
index 00000000..81de2061
--- /dev/null
+++ b/build-support/disabled/mesa/mesa
@@ -0,0 +1,177 @@
+# disable openswf as it requires AVX, makes no sense with old CPUs
+# disable every new software rasterizer and take the old ones
+# see also FS32#39
+eval "$(
+  declare -f build | \
+    sed '
+      /arch-meson/s/\(gallium-drivers=.*\),swrast,swr/\1,swrast/
+      /arch-meson/s/\(-D swr-arches=\)avx,avx2/\1/
+    '
+  declare -f package_mesa | \
+    sed '
+      s@_install fakeinstall/usr/lib/libswrAVX.*@#\0@g
+    '
+)"
+
+# See https://bugs.freedesktop.org/show_bug.cgi?id=93089
+# do not build/package vulkan on i486
+# do not build i915,i965 on i486
+if [ "$CARCH" = 'i486' ]; then
+  eval "$(
+    declare -f build | \
+      sed '
+        s/-D gallium-omx=bellagio //
+        s/-D gallium-opencl=\S\+ //
+        s/-D osmesa=true /-D osmesa=false /
+        s/\(-D gallium-\S\+=\)enabled /\1disabled /g
+        s/\(-D gallium-nine=\)true /\1false /g
+        s/\(-D vulkan-drivers=\)\S\+ /\1 /
+        s/\(-D dri-drivers=\(\S\+,\)\?\)i915,/\1/
+        s/\(-D dri-drivers=\(\S\+,\)\?\)i965,/\1/
+      '
+    declare -f package_mesa | \
+      sed '
+        \,rm .*/vulkan;,d
+        \,bellagio,d
+        \,fakeinstall/usr/lib/d3d,d
+        \,fakeinstall/usr/lib/libOSMesa\.so\*,d
+        \,fakeinstall/usr/lib/libxatracker\.so\*,d
+      '
+  )"
+else
+  eval "$(
+    declare -f package_vulkan-intel package_vulkan-radeon package_opencl-mesa package_libva-mesa-driver package_mesa-vdpau | \
+      sed '
+        /^\s*{\s*$/ a arch=('"$(
+          printf '%s\n' "${arch[@]}" | \
+            grep -vxF 'i486' | \
+            tr '\n' ' '
+        )"')
+      '
+  )"
+fi
+
+# break cycle with conflicting installation files between mesa and libglvnd
+# (indirect dependency via libva)
+# i486-specific
+if [ "$CARCH" = 'i486' ]; then
+  eval "$(
+    declare -f package_mesa | \
+      sed '
+        $ i rm -rf $pkgdir/usr/include/EGL/egl.h \
+            rm -rf $pkgdir/usr/include/EGL/eglext.h \
+            rm -rf $pkgdir/usr/include/EGL/eglplatform.h \
+            rm -rf $pkgdir/usr/include/GL/gl.h \
+            rm -rf $pkgdir/usr/include/GL/glcorearb.h \
+            rm -rf $pkgdir/usr/include/GL/glext.h  \
+            rm -rf $pkgdir/usr/include/GL/glx.h  \
+            rm -rf $pkgdir/usr/include/GL/glxext.h  \
+            rm -rf $pkgdir/usr/include/GLES2/gl2.h  \
+            rm -rf $pkgdir/usr/include/GLES2/gl2ext.h  \
+            rm -rf $pkgdir/usr/include/GLES2/gl2platform.h  \
+            rm -rf $pkgdir/usr/include/GLES3/gl3.h  \
+            rm -rf $pkgdir/usr/include/GLES3/gl31.h  \
+            rm -rf $pkgdir/usr/include/GLES3/gl32.h  \
+            rm -rf $pkgdir/usr/include/GLES3/gl3ext.h  \
+            rm -rf $pkgdir/usr/include/GLES3/gl3platform.h  \
+            rm -rf $pkgdir/usr/include/KHR/khrplatform.h  \
+            rm -rf $pkgdir/usr/lib/pkgconfig/egl.pc  \
+            rm -rf $pkgdir/usr/lib/pkgconfig/gl.pc  \
+            rm -rf $pkgdir/usr/lib/pkgconfig/glesv2.pc
+      '
+    declare -f package_vulkan-mesa-layers | \
+      sed '
+        3 i if false; then
+        $ i fi      
+      '
+    declare -f package_vulkan-swrast | \
+      sed '
+        3 i if false; then
+        $ i fi      
+      '
+    declare -f package_vulkan-intel | \
+      sed '
+        3 i if false; then
+        $ i fi      
+      '
+    declare -f package_vulkan-radeon | \
+      sed '
+        3 i if false; then
+        $ i fi      
+      '
+    declare -f package_opencl-mesa | \
+      sed '
+        3 i if false; then
+        $ i fi      
+      '
+    declare -f package_libva-mesa-driver | \
+      sed '
+        3 i if false; then
+        $ i fi      
+      '
+    declare -f package_libva-mesa-vdpau | \
+      sed '
+        3 i if false; then
+        $ i fi      
+      '
+    declare -f package_mesa-vdpau | \
+      sed '
+        3 i if false; then
+        $ i fi      
+      '
+  )
+  "
+fi
+
+# add libdrm and libxshmfence explocitily for now, as deep down in th
+# dependency tree as reasonable instead of patching all packages failing above
+if [ "$CARCH" = 'i486' ]; then
+  depends+=(libdrm)
+  depends+=(libxshmfence)
+  depends+=(wayland)
+fi
+
+# defaults changed to SSE2 enabled by default, disable it
+if [ "$CARCH" = 'i686' -o "$CARCH" = 'i486' ]; then
+  eval "$(
+  declare -f build | \
+  sed '
+    s/arch-meson /arch-meson -Dsse2=false /
+  '
+  )"
+fi
+
+# LTO on i486 results in out-of-memory
+if [ "$CARCH" == 'i486' ]; then
+  eval "$(
+    declare -f build | \
+      sed '
+        s/-D b_lto=true/-D b_lto=false/
+      '
+  )"
+fi
+
+# libclc needs spirv-llvm-translator which throws heavily errors on 32-bit
+#  LLVM_SPIRV :: DebugInfo/X86/dbg-declare-alloca.ll
+#  LLVM_SPIRV :: DebugInfo/X86/dbg-declare-arg.ll
+#  LLVM_SPIRV :: DebugInfo/X86/dbg-value-const-byref.ll
+#  LLVM_SPIRV :: DebugInfo/X86/dw_op_minus_direct.ll
+#  LLVM_SPIRV :: DebugInfo/X86/dwarf-aranges-no-dwarf-labels.ll
+#  LLVM_SPIRV :: DebugInfo/X86/frame-register.ll
+#  LLVM_SPIRV :: DebugInfo/X86/this-stack_value.ll
+#  LLVM_SPIRV :: spirv-extensions-control.ll
+#  LLVM_SPIRV :: transcoding/SPV_KHR_integer_dot_product-sat.ll
+# usually with segfaults in the middle of LLVM itself
+# this might be hopeless to get working
+makedepends=(${makedepends[@]//libclc/})
+eval "$(
+  declare -f build | \
+    sed '
+      s/-D gallium-opencl=icd/-D gallium-opencl=disabled/
+    '
+  declare -f package_opencl-mesa | \
+    sed '
+      3 i if false; then
+      $ i fi
+    '
+)"