* Don't use $SHELL.

tests/Makefile.am

@@ -43,7 +43,7 @@ EXTRA_DIST = $(TESTS) \
   fallback.nix.in \
   user-envs.nix.in user-envs.builder.sh \
   fixed.nix.in fixed.builder1.sh fixed.builder2.sh \
-  gc-runtime.nix.in gc-runtime.builder.sh \
+  gc-runtime.nix.in \
   check-refs.nix.in \
   filter-source.nix.in \
   $(wildcard lang/*.nix) $(wildcard lang/*.exp) $(wildcard lang/*.exp.xml) $(wildcard lang/*.flags) \

tests/gc-runtime.builder.sh

@@ -1,8 +0,0 @@
-mkdir $out
-
-cat > $out/program <<EOF
-#! $SHELL
-sleep 10000
-EOF
-
-chmod +x $out/program

tests/gc-runtime.nix.in

@@ -5,7 +5,7 @@ let {
 mkdir $out
 
 cat > $out/program <<EOF
-#! $SHELL
+#! @shell@
 sleep 10000
 EOF