github.com/ebitengine/purego@v0.8.0-alpha.2.0.20240512170805-6cd12240d332/internal/fakecgo/doc.go (about)

     1  // SPDX-License-Identifier: Apache-2.0
     2  // SPDX-FileCopyrightText: 2022 The Ebitengine Authors
     3  
     4  //go:build !cgo && (darwin || freebsd || linux)
     5  
     6  // Package fakecgo implements the Cgo runtime (runtime/cgo) entirely in Go.
     7  // This allows code that calls into C to function properly when CGO_ENABLED=0.
     8  //
     9  // # Goals
    10  //
    11  // fakecgo attempts to replicate the same naming structure as in the runtime.
    12  // For example, functions that have the prefix "gcc_*" are named "go_*".
    13  // This makes it easier to port other GOOSs and GOARCHs as well as to keep
    14  // it in sync with runtime/cgo.
    15  //
    16  // # Support
    17  //
    18  // Currently, fakecgo only supports macOS on amd64 & arm64. It also cannot
    19  // be used with -buildmode=c-archive because that requires special initialization
    20  // that fakecgo does not implement at the moment.
    21  //
    22  // # Usage
    23  //
    24  // Using fakecgo is easy just import _ "github.com/ebitengine/purego" and then
    25  // set the environment variable CGO_ENABLED=0.
    26  // The recommended usage for fakecgo is to prefer using runtime/cgo if possible
    27  // but if cross-compiling or fast build times are important fakecgo is available.
    28  // Purego will pick which ever Cgo runtime is available and prefer the one that
    29  // comes with Go (runtime/cgo).
    30  package fakecgo
    31  
    32  //go:generate go run gen.go