Install prebuilt libbcc 0.11.0

.travis.yml

@@ -14,8 +14,11 @@ before_install:
   - sudo apt-get update && sudo apt-get install -y lsb-release
   - sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648A4A16A23015EEF4A66B8E4052245BD4284CDD
   - echo "deb https://repo.iovisor.org/apt/$(lsb_release --short --codename) $(lsb_release --short --codename) main" | sudo tee /etc/apt/sources.list.d/iovisor.list
-  - sudo apt-get update && sudo apt-get install -y libbcc linux-headers-$(uname -r)
-  - sudo dpkg -L libbcc
+  - sudo apt-get update && sudo apt-get install -y linux-headers-$(uname -r)
+  # Install libbcc attached to https://github.com/cloudflare/ebpf_exporter/pull/61
+  # instead of upstream one, because of https://github.com/iovisor/bcc/issues/2570
+  - curl -s https://github.com/cloudflare/ebpf_exporter/files/3890546/libbcc_0.11.0-2_amd64.deb.gz | gunzip > /tmp/libbcc.deb
+  - sudo dpkg -i /tmp/libbcc.deb
   # Install linter tools, cd to avoid confusion with go modules
   - cd && go get -u -v github.com/alecthomas/gometalinter
   - ~/go/bin/gometalinter --install