go: x/mobile: Getting undefined reference while generating binding using gomobile

What version of Go are you using (go version)?

$ go version: go1.12.4 linux/amd64

What operating system and processor architecture are you using (go env)?

$ go env
GOARCH=“amd64”
GOBIN=“/usr/local/go”
GOCACHE=“/home/–/.cache/go-build”
GOEXE=“”
GOFLAGS=“”
GOHOSTARCH=“amd64”
GOHOSTOS=“linux”
GOOS=“linux”
GOPATH=“My Go path”
GOPROXY=“”
GORACE=“”
GOROOT=“/usr/local/go”
GOTMPDIR=“”
GOTOOLDIR=“/usr/local/go/pkg/tool/linux_amd64”
GCCGO=“gccgo”
CC=“gcc”
CXX=“g++”
CGO_ENABLED=“1”
GOMOD=“”
CGO_CFLAGS=“-g -O2”
CGO_CPPFLAGS=“”
CGO_CXXFLAGS=“-g -O2”
CGO_FFLAGS=“-g -O2”
CGO_LDFLAGS=“-g -O2”
PKG_CONFIG=“pkg-config”
GOGCCFLAGS=“-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build242944229=/tmp/go-build -gno-record-gcc-switches”

What did you do?

1. I have go package, I am trying to generate go binding for that using gomobile tool. (a) gomobile bind -o my.aar -target=android mygopackage

2. Details about my go package [mygopackage]: (a) $ tree ├── file.go └── res.c

   (b) Details about file.go:
   (i) I am including my res.c
   (ii) I am just redirecting my function call to c file.

   © Details about my res.c file: (i) I am including one header for getting interfaces: #include <ifaddrs.h> : http://man7.org/linux/man-pages/man3/getifaddrs.3.html and I am calling one API: getifaddrs()

Issue: While generating the go mobile binding it is giving undefined reference : $ gomobile bind -o my.aar -target=android mygopackage

gomobile: go build -buildmode=c-shared -o=/tmp/gomobile-work-063445150/android/src/main/jniLibs/armeabi-v7a/libgojni.so gobind failed: exit status 2 ‘#mygopackage’ src/mygopackage/res.c:15: error: undefined reference to ‘getifaddrs’ clang: error: linker command failed with exit code 1 (use -v to see invocation)

I have browsed all issues but no issue is related to this.