github.com/jwijenbergh/purego@v0.0.0-20240126093400-70ff3a61df13/cgo.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 purego
     7  
     8  // if CGO_ENABLED=1 import the Cgo runtime to ensure that it is set up properly.
     9  // This is required since some frameworks need TLS setup the C way which Go doesn't do.
    10  // We currently don't support ios in fakecgo mode so force Cgo or fail
    11  // Even if CGO_ENABLED=1 the Cgo runtime is not imported unless `import "C"` is used.
    12  // which will import this package automatically. Normally this isn't an issue since it
    13  // usually isn't possible to call into C without using that import. However, with purego
    14  // it is since we don't use `import "C"`!
    15  import _ "runtime/cgo"