prevent accidental updates to libs/ldns/install-sh

bootstrap.sh

@@ -380,6 +380,23 @@ bootstrap_fs() {
   rm -rf autom4te*.cache
 }
 
+bootstrap_libs_pre() {
+  case "$i" in
+    ldns)
+      # This file shouldn't even be in the tree as it's autogenerated
+      # during bootstrap, but some people report it breaks the build
+      # if it's not there.  Let's prevent it from getting accidentally
+      # updated.
+      (cd $BASEDIR/libs/ldns && cp -a install-sh install-sh~) ;;
+  esac
+}
+
+bootstrap_libs_post() {
+  case "$i" in
+    ldns) (cd $BASEDIR/libs/ldns && mv install-sh~ install-sh) ;;
+  esac
+}
+
 bootstrap_libs() {
   for i in ${SUBDIRS}; do
     case "$i" in
@@ -389,11 +406,13 @@ bootstrap_libs() {
         continue
         ;;
     esac
+    bootstrap_libs_pre
     if ! ${BGJOB}; then
       libbootstrap ${i}
     else
       libbootstrap ${i} &
     fi
+    bootstrap_libs_post
   done
 }