Travis CI: Also test with musl-gcc (Linux)

(Cherry-pick commits 07d9895, 11263e5 from 'master' branch.)

diff --git a/.travis.yml b/.travis.yml
index cb0df70c50bd55b7f1c7ac146d116b8d3c360059..13837a6943a63e397d7dae444bcd84c26fd136b0 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -63,6 +63,13 @@ matrix:
       env:
         - CONF_OPTIONS="--disable-static --disable-threads --enable-gc-assertions --enable-cplusplus"
         - CFLAGS_EXTRA="-O3 -march=native"
+    - os: linux
+      addons: { apt: { packages: [ musl-tools ] } }
+      compiler: musl-gcc
+      dist: trusty
+      language: c
+      env:
+        - CONF_OPTIONS="--disable-parallel-mark --enable-gc-assertions"
 
 install:
   - git clone --depth=50 https://github.com/ivmai/libatomic_ops.git -b release-7_4