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-rw-r--r--.travis.yml4
-rwxr-xr-xtest_layers8
2 files changed, 8 insertions, 4 deletions
diff --git a/.travis.yml b/.travis.yml
index e6e42ecf..3093955c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,7 +30,9 @@ matrix:
     - env: COMMAND=./test_layers CXX=clang++ START=edit3
     - env: COMMAND=./test_layers CXX=clang++ START=edit4
     - env: COMMAND=./test_layers CXX=g++ START=one-off  # minimal testing for gcc
-    - env: COMMAND=./subx/test_layers START= END=
+    - env: COMMAND=./subx/test_layers
+    - env: COMMAND=./test_layers BUILD=build0 START=one-off
+    - env: COMMAND=./test_layers BUILD=build1 START=one-off
 
 script:
   - $COMMAND $START $END
diff --git a/test_layers b/test_layers
index 73c00597..d23776da 100755
--- a/test_layers
+++ b/test_layers
@@ -15,9 +15,11 @@
 #     test_layers app
 set -e
 
+test "$BUILD" || export BUILD=build1
+
 if [[ $1 == one-off ]]
 then
-  ./build1
+  ./$BUILD
   ./mu_bin test || exit 1
   exit 0
 fi
@@ -29,7 +31,7 @@ do
   if [[ $2 && $f > $2 ]]; then exit 0; fi
   echo "=== $f"
   rm -rf .build mu.cc mu_bin core.mu  # force full rebuild for top-level, but not subsidiary tools like tangle and cleave
-  ./build1 --until $f || exit 1
+  ./$BUILD --until $f || exit 1
   # valgrind requires Linux
   valgrind --leak-check=yes --num-callers=40 -q --error-exitcode=1 ./mu_bin test || exit 1
   # run on Mac OS without valgrind, and with a hacky fix for the coarser clock
@@ -39,7 +41,7 @@ done
 
 # Layers for Mu apps without Valgrind
 ./clean
-./build1
+./$BUILD
 
 if [[ ! $1 || $1 == chessboard ]]
 then