travis: install libseccomp-dev

Author: mptre

.travis.yml

@@ -9,6 +9,10 @@ matrix:
     - os: linux
       compiler: clang
       env: BUILD_TYPE=default CFLAGS='-fsanitize=address -fsanitize=undefined'
+      addons:
+        apt:
+          packages:
+           - libseccomp-dev
     - os: linux
       compiler: clang-5.0
       env: BUILD_TYPE=default CFLAGS='-fsanitize=address -fsanitize=undefined'
@@ -18,9 +22,14 @@ matrix:
             - llvm-toolchain-trusty-5.0
           packages:
             - clang-5.0
+            - libseccomp-dev
     - os: linux
       compiler: gcc
       env: BUILD_TYPE=default CFLAGS=-fsanitize=address
+      addons:
+        apt:
+          packages:
+           - libseccomp-dev
     - os: osx
       compiler: clang
       env: BUILD_TYPE=default CFLAGS=-fsanitize=address