Put building with interfaces on the right target.
diff --git a/.travis.yml b/.travis.yml
index 1eb519c..fc32db9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,9 +5,9 @@
   - gcc
 
 env:
-  - BUILD=yes TEST=scripttests COVERAGE=yes CFLAGS=--coverage LDFLAGS=--coverage FEATURES=huge SHADOWOPT= SRCDIR=./src
-  - BUILD=no TEST=unittests COVERAGE=yes CFLAGS=--coverage LDFLAGS=--coverage FEATURES=huge SHADOWOPT= SRCDIR=./src
+  - BUILD=yes TEST=scripttests COVERAGE=yes CFLAGS=--coverage LDFLAGS=--coverage FEATURES=huge SHADOWOPT= SRCDIR=./src CHECK_AUTOCONF=no
     "CONFOPT='--enable-perlinterp --enable-pythoninterp --enable-python3interp --enable-rubyinterp --enable-luainterp'"
+  - BUILD=no TEST=unittests COVERAGE=yes CFLAGS=--coverage LDFLAGS=--coverage FEATURES=huge SHADOWOPT= SRCDIR=./src CHECK_AUTOCONF=no
     CHECK_AUTOCONF=yes
   - BUILD=yes TEST=test COVERAGE=no FEATURES=normal CONFOPT= SHADOWOPT="-C src/shadow" SRCDIR=./src/shadow CHECK_AUTOCONF=no
   - BUILD=yes TEST=test COVERAGE=no FEATURES=small CONFOPT= SHADOWOPT= SRCDIR=./src CHECK_AUTOCONF=no