Copy bugfixed version of erlehmann's redo script.

[plomrogue] / build / redo_scripts / redo-ifchange

diff --git a/build/redo_scripts/redo-ifchange b/build/redo_scripts/redo-ifchange
index bdec2d4dae215b11ab69c6d3451f0317762fed95..5f220a8002ac1b46206046a1fc3de2c30ccff5fe 100755 (executable)
--- a/build/redo_scripts/redo-ifchange
+++ b/build/redo_scripts/redo-ifchange
@@ -70,6 +70,10 @@ _dependencies_ne_uptodate() {
 
 _target_uptodate() {
   target=$1
+  # If a target is a top-level target, it is not up to date.
+  if [ -z "$REDO_TARGET" ]; then
+    return 1
+  fi
   # If a target does not exist, it is not up to date.
   if [ ! -e "$target" ]; then
     _echo_debug_message "$target does not exist."
@@ -192,7 +196,9 @@ _do() {
     [ -e "$target.do" ] || _find_dofile "$target"
     if [ ! -e "$dofile" ]; then
       # If .do file does not exist and target exists, it is a source file.
-      if [ -e "$target" ]; then
+      if [ -e "$target_abspath" ]; then
+        _add_dependency "$REDO_TARGET" "$target_abspath"
+        _add_ctime_md5sum "$target_abspath"
         return 0
       # If .do file does not exist and target does not exist, stop.
       else
@@ -231,7 +237,7 @@ _do() {
       "$REDO_DIR/$target_abspath".dependencies_ne >&2
   fi
   # Some do files (like all.do) do not usually generate output.
-  if [ -e "$target" ]; then
+  if [ -e "$target_abspath" ]; then
     # Record dependency on parent target.
     _add_dependency "$REDO_TARGET" "$target_abspath"
     _add_ctime_md5sum "$target_abspath"