How to resolve go build errors for github.com/godror/godror?

On a Mac Os, I'm trying to build the below file to run in a linux machine.

package main

import (
    "context"
    "database/sql"
    _ "github.com/godror/godror"
)

func main() {
    dsn := "user/password@host:port/sid"

    // Open a connection to the Oracle database
    db, err := sql.Open("godror", dsn)
    if err != nil {
        panic(err.Error())
    }
    defer db.Close()

    // Test the database connection
    ctx := context.Background()
    err = db.PingContext(ctx)
    if err != nil {
        panic(err.Error())
    }

    query := "SELECT * FROM table"
    rows, err := db.QueryContext(ctx, query)
    if err != nil {
        panic(err.Error())
    }
    defer rows.Close()

    if err := rows.Err(); err != nil {
        panic(err.Error())
    }
}

I'm using the below command to build:

env GOOS=linux GOARCH=amd64 go build db.go

Errors:

# github.com/godror/godror
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:530:19: undefined: VersionInfo
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:531:19: undefined: VersionInfo
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:532:10: undefined: StartupMode
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:533:11: undefined: ShutdownMode
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:535:31: undefined: Event
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:535:42: undefined: SubscriptionOption
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:535:64: undefined: Subscription
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:536:31: undefined: ObjectType
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:537:59: undefined: Data
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:538:28: undefined: DirectLob
../../../../pkg/mod/github.com/godror/godror@v0.39.2/orahlp.go:538:28: too many errors

I am able to build for Mac OS, but having issues to build for linux. Could you help me resolve these errors?

This cross-compilation error is due to the usage of CGO by the github.com/godror/godror package. For compiling the application you need a valid gcc installation and CGO_ENABLED=1, as mentioned in the readme of the package. You can try compiling for linux/amd64 using docker.

Example:

DOCKER_DEFAULT_PLATFORM=linux/amd64 docker run --rm -v "$PWD":/app -w /app golang:1.21 go build -v db.go

This will build the application in a docker container and save the executable in the current directory.