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src/scripts/common.sh

Index: src/scripts/common.sh
diff --git a/src/scripts/common.sh b/src/scripts/common.sh
index 25dee4a3ed6c634b6d287689e539a83ea97db76a..9e38538ca478495a555aeb5d5c160a079ec5dcf1 100644
--- a/src/scripts/common.sh
+++ b/src/scripts/common.sh
@@ -31,7 +31,7 @@ then
   # Using bash, so we can find ourselves
   GCLIENT_ROOT="$(dirname "$BASH_SOURCE")/../.."
 else
-  # Using dash or sh, we don't know where we are.  $0 refers to the calling 
+  # Using dash or sh, we don't know where we are.  $0 refers to the calling
   # script, not ourselves, so that doesn't help us.
   echo "Unable to determine location for common.sh.  If you are sourcing"
   echo "common.sh from a script run via dash or sh, you must do it in the"
@@ -45,9 +45,9 @@ fi
 
 # Canonicalize the directories for the root dir and the calling script.
 # readlink is part of coreutils and should be present even in a bare chroot.
-# This is better than just using 
+# This is better than just using
 #     FOO = "$(cd $FOO ; pwd)"
-# since that leaves symbolic links intact.  
+# since that leaves symbolic links intact.
 # Note that 'realpath' is equivalent to 'readlink -f'.
 TOP_SCRIPT_DIR=`readlink -f $TOP_SCRIPT_DIR`
 GCLIENT_ROOT=`readlink -f $GCLIENT_ROOT`
@@ -75,7 +75,11 @@ then
 fi
 
 # Load shflags
-. "$SRC_ROOT/third_party/shflags/files/src/shflags"
+if [ -f "${TOP_SCRIPT_DIR}/shflags" ]; then
+  . shflags
+else
+  . "$SRC_ROOT/third_party/shflags/files/src/shflags"
+fi
 
 # Mirrors and build suites come in 3 flavors
 #   EXT - external source used to build local package repository
@@ -120,7 +124,7 @@ function make_pkg_common {
   PKG_BASE=${1:?}
   shift
   set +e
-  
+
   # All packages are built in the chroot
   assert_inside_chroot