The archive checker should accept empty archives

pnacl/build.sh

 #!/bin/bash
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 #@                 PNaCl toolchain build script
 #@-------------------------------------------------------------------
 #@ This script builds the ARM and PNaCl untrusted toolchains.
 #@ It MUST be run from the native_client/ directory.
 ######################################################################
@@ skipping 3074 matching lines @@
   # extract all the files
   local count=0
   for i in ${pattern} ; do
     if [ ! -e "$i" ]; then
       # we may also see the unexpanded pattern here if there is no match
       continue
     fi
     count=$((count+1))
     ${checker} $i
   done
-  if [ "${count}" = "0" ] ; then
-    echo "FAIL - archive empty or wrong contents: ${archive}"
-    ls -l "${tmp}"
-    exit -1
-  fi
   echo "PASS  (${count} files)"
   rm -rf "${tmp}"
   spopd
 }
 
 IsLinkerScript() {
   local fname="$1"
   local type="$(file --brief --mime-type "${fname}")"
   case "$type" in
     text/x-c)
@@ skipping 503 matching lines @@
 
 if [ "$(type -t $1)" != "function" ]; then
   #Usage
   echo "ERROR: unknown function '$1'." >&2
   echo "For help, try:"
   echo "    $0 help"
   exit 1
 fi
 
 "$@"