Method setupEnvs

buildsystems/buildconfig_envs.go:48–151

()

}

func (b *BuildConfig) setupEnvs() {
	b.envBackup.backup()

	// Setup environments if defined.
	toolchain := b.Ctx.Platform().GetToolchain()
	if toolchain != nil {
		toolchain.SetupEnvs()
	}

	for _, env := range b.Envs {
		env = strings.TrimSpace(env)

		before, after, ok := strings.Cut(env, "=")
		if !ok {
			color.Printf(color.Warning, "invalid environment variable `%s` and is ignored.", env)
			continue
		}

		key := strings.TrimSpace(before)
		currentValue := strings.TrimSpace(after)
		currentValue = b.expandVariables(currentValue)

		switch key {
		case "CPATH", "LIBRARY_PATH", "PATH":
			lastValue := filepath.ToSlash(os.Getenv(key))
			if strings.TrimSpace(lastValue) == "" {
				b.envBackup.setenv(key, currentValue)
			} else {
				b.envBackup.setenv(key, fmt.Sprintf("%s%s%s", currentValue, string(os.PathListSeparator), lastValue))
			}

		case "CFLAGS", "CXXFLAGS", "LDFLAGS", "CPPFLAGS":
			// celer can wrap CFLAGS, CXXFLAGS and CPPFLAGS automatically, so we need to remove them.
			currentValue = strings.ReplaceAll(currentValue, "${CFLAGS}", "")
			currentValue = strings.ReplaceAll(currentValue, "${CXXFLAGS}", "")
			currentValue = strings.ReplaceAll(currentValue, "${CPPFLAGS}", "")
			currentValue = strings.ReplaceAll(currentValue, "${LDFLAGS}", "")

			lastValue := filepath.ToSlash(os.Getenv(key))
			if strings.TrimSpace(lastValue) == "" {
				b.envBackup.setenv(key, strings.TrimSpace(currentValue))
			} else {
				b.envBackup.setenv(key, fmt.Sprintf("%s %s", lastValue, currentValue))
			}

		default:
			b.envBackup.setenv(key, currentValue)
		}
	}

	if b.buildSystem.Name() != "cmake" {
		// This allows the bin to locate the libraries in the relative lib dir.
		toolchain := b.Ctx.Platform().GetToolchain()
		if strings.ToLower(toolchain.GetSystemName()) == "linux" &&
			b.buildSystem.Name() == "makefiles" {
			b.envBackup.setenv("LDFLAGS", env.JoinSpace("-Wl,-rpath=\\$$ORIGIN/../lib", os.Getenv("LDFLAGS")))
		}