.travis.yml: disable cgo for all release binaries

Fixes #169

.travis.yml

@@ -5,10 +5,10 @@ install: "# skip"
 
 script:
   - go vet
-  - GOOS=linux GOARCH=amd64 go build -o "mkcert-$(git describe --tags)-linux-amd64"
-  - GOOS=linux GOARCH=arm GOARM=6 go build -o "mkcert-$(git describe --tags)-linux-arm"
-  - GOOS=darwin GOARCH=amd64 go build -o "mkcert-$(git describe --tags)-darwin-amd64"
-  - GOOS=windows GOARCH=amd64 go build -o "mkcert-$(git describe --tags)-windows-amd64.exe"
+  - CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o "mkcert-$(git describe --tags)-linux-amd64"
+  - CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=6 go build -o "mkcert-$(git describe --tags)-linux-arm"
+  - CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -o "mkcert-$(git describe --tags)-darwin-amd64"
+  - CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -o "mkcert-$(git describe --tags)-windows-amd64.exe"
 
 deploy:
   provider: releases