Travis CI: Test also ENABLE_TRACE macro

(Cherry-pick commit 7913227 from 'master' branch.)

diff --git a/.travis.yml b/.travis.yml
index 36fc04e138392e6c5c38e87454cee0ff2ee9253a..7895aa3232ff9a789687449739321f52aaba2d49 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -41,6 +41,11 @@ matrix:
       env:
         - CFLAGS_EXTRA="-D DEBUG_ADD_DEL_ROOTS -D DEBUG_DIRTY_BITS -D DEBUG_THREADS -D GC_LOG_TO_FILE_ALWAYS"
         - CONF_OPTIONS="--enable-cplusplus"
+    - os: linux
+      compiler: gcc
+      env:
+        - CFLAGS_EXTRA="-D ENABLE_TRACE -D EMPTY_GETENV_RESULTS"
+        - CONF_OPTIONS="--enable-cplusplus"
     - os: linux
       addons: { apt: { packages: [ gcc-multilib ] } }
       compiler: gcc