treewide: use perl as tool

adapt to the basement change where perl is no longer part of the sandbox
and used as tool instead.

Author: rhubert

classes/linux.yaml

@@ -83,7 +83,7 @@ checkoutSCM:
     dir: kmod-script
 
 buildVars: [LINUX_ARCH, ARCH, CROSS_COMPILE, CC]
-buildTools: [m4, bison, flex, target-toolchain, host-toolchain]
+buildTools: [m4, bison, flex, target-toolchain, host-toolchain, perl]
 buildSetup: |
     # make sure we find our kmod-dist script in the package step
     ln -sf $1/kmod-script .

recipes/bsp/uboot.yaml

@@ -16,6 +16,7 @@ multiPackage:
             - if: "${UBOOT_CUSTOM_CONFIG:-}"
               name: "${UBOOT_CUSTOM_CONFIG_PKG:-uboot-custom-cfg}"
 
+        buildToolsWeak: [perl]
         buildVars: [UBOOT_CONFIG, UBOOT_TARGETS, UBOOT_CUSTOM_CONFIG, UBOOT_CUSTOM_CONFIG_PKG]
         buildScript: |
             # Use plain "defconfig" if we have no specific target. Otherwise check if

recipes/net/ifupdown.yaml

@@ -11,9 +11,11 @@ checkoutSCM:
     stripComponents: 1
 
 buildVars: [CC]
+buildTools: [perl]
 buildScript: |
     mkdir -p build
     cp -a $1/* build/
+    sed -i 's#/usr/bin/perl#/usr/bin/env -S perl#' build/defn2*.pl
 
     # fake this
     mkdir -p bin