Install build tools in Drone (#13)

* Install build tools in Drone

Author: giordano

.drone.jsonnet

@@ -10,6 +10,8 @@ local Pipeline(os, arch, version, alpine=false) = {
             name: "Run tests",
             image: "julia:"+version+(if alpine then "-alpine" else ""),
             commands: [
+                "apt-get update -y",
+                "apt-get install -y gcc build-essential",
                 "julia --project=test --check-bounds=yes --color=yes -e 'using InteractiveUtils; versioninfo(verbose=true)'",
                 "julia --project=test --check-bounds=yes --color=yes -e 'using Pkg; Pkg.instantiate()'",
                 "julia --project=test --check-bounds=yes --color=yes test/runtests.jl"

.drone.yml

@@ -10,6 +10,8 @@ steps:
 - name: Run tests
   image: julia:1.6
   commands:
+  - apt-get update -y
+  - apt-get install -y gcc build-essential
   - "julia --project=test --check-bounds=yes --color=yes -e 'using InteractiveUtils; versioninfo(verbose=true)'"
   - "julia --project=test --check-bounds=yes --color=yes -e 'using Pkg; Pkg.instantiate()'"
   - julia --project=test --check-bounds=yes --color=yes test/runtests.jl