add libc-dev

Author: DeyiXu

Dockerfile

@@ -1,6 +1,7 @@
-FROM golang:alpine
+FROM golang:1.13-alpine
 RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
 RUN apk --no-cache add git
 RUN apk --no-cache add gcc
+RUN apk add --no-cache libc-dev
 RUN go env -w GOPROXY=https://goproxy.io,direct
 RUN go env -w GOSUMDB=off