travis: model scons check target like the make one

Should make things a bit more consistent across the board.

Cc: Eric Engestrom <eric@engestrom.ch>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Andres Gomez <agomez@igalia.com>
diff --git a/.travis.yml b/.travis.yml
index b806237..0e35b6e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -132,6 +132,8 @@
         - SCONSFLAGS="-j4"
         # Explicitly disable.
         - SCONS_TARGET="llvm=0"
+        # Keep it symmetrical to the make build.
+        - SCONS_CHECK_COMMAND="scons llvm=0 check"
       addons:
         apt:
           packages:
@@ -146,6 +148,8 @@
         - BUILD=scons
         - SCONSFLAGS="-j4"
         - SCONS_TARGET="llvm=1"
+        # Keep it symmetrical to the make build.
+        - SCONS_CHECK_COMMAND="scons llvm=1 check"
         - LLVM_VERSION=3.3
         - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
       addons:
@@ -167,6 +171,8 @@
         - SCONS_TARGET="swr=1"
         - LLVM_VERSION=3.9
         - LLVM_CONFIG="llvm-config-${LLVM_VERSION}"
+        # Keep it symmetrical to the make build. There's no actual SWR, yet.
+        - SCONS_CHECK_COMMAND="true"
         - OVERRIDE_CC="gcc-5"
         - OVERRIDE_CXX="g++-5"
       addons:
@@ -281,5 +287,5 @@
   - if test "x$BUILD" = xscons; then
       test -n "$OVERRIDE_CC" && export CC="$OVERRIDE_CC";
       test -n "$OVERRIDE_CXX" && export CXX="$OVERRIDE_CXX";
-      scons $SCONS_TARGET && scons $SCONS_TARGET check;
+      scons $SCONS_TARGET && eval $SCONS_CHECK_COMMAND;
     fi