libs::mesa3d: enable clc for llvmpipe and iris

Mesa needs clc for some drivers. ATM llvmpipe and iris are known to
require clc.

Author: rhubert

recipes/libs/mesa3d.yaml

@@ -150,14 +150,14 @@ multiPackage:
                         - libs::xorg::libXxf86vm-tgt
                         - virtual::core::udev-tgt
 
-            - if: "$(match,$MESA3D_GALLIUM_DRIVERS,llvmpipe)"
+            - if: "$(match,$MESA3D_GALLIUM_DRIVERS,[llvmpipe|iris])"
               depends:
                   - devel::llvm-libs-dev
                   - use: []
                     depends:
                         - devel::llvm-libs-tgt
 
-            - if: "$(match,$MESA3D_GALLIUM_DRIVERS,iris)"
+            - if: "$(match,$MESA3D_GALLIUM_DRIVERS,[llvmpipe|iris])"
               tools:
                   target-toolchain: host-compat-toolchain
               depends:
@@ -172,11 +172,20 @@ multiPackage:
                     cross_file.txt
             fi
         buildTools:
-            - if: "$(match,$MESA3D_GALLIUM_DRIVERS,iris)"
+            - if: "$(match,$MESA3D_GALLIUM_DRIVERS,[llvmpipe|iris])"
               name: mesa_clc
         buildVars: [MESA3D_GALLIUM_DRIVERS, MESA3D_GLX, MESA3D_PLATFORM,
                     MESA3D_GLX_READ_ONLY_TEXT]
         buildScript: |
+            CLC_DRIVERS=("llvmpipe" "iris")
+            ENABLE_LLV=false
+            IFS=',' read -ra ENABLED_DRIVERS <<< "$MESA3D_GALLIUM_DRIVERS"
+            for i in "${ENABLED_DRIVERS[@]}"; do
+              if [[ " ${CLC_DRIVERS[*]} " == *" $i "* ]]; then
+                ENABLE_LLV=true
+              fi
+            done
+
             mesonBuild $1 \
                 -Dglx=$([[ $MESA3D_PLATFORM == x11 ]] && echo ${MESA3D_GLX} || echo disabled) \
                 -Dglvnd=disabled \
@@ -190,7 +199,7 @@ multiPackage:
                 -Dgles2=enabled \
                 -Dglx-read-only-text=$([[ $MESA3D_GLX_READ_ONLY_TEXT -ne 0 ]] && echo true || echo false) \
                 -Dvalgrind=disabled \
-                -Dllvm=$([[ "$MESA3D_GALLIUM_DRIVERS" =~ "llvmpipe" ]] && echo 'enabled' || echo 'disabled') \
+                -Dllvm=$($ENABLE_LLV && echo 'enabled' || echo 'disabled') \
                 ${BOB_TOOL_PATHS[mesa_clc]+-Dmesa-clc=system} \
 
         multiPackage: