Enum Error 

pub enum Error {
    EnvNoPkgConfig(String),
    CrossCompilation,
    Command {
        command: String,
        cause: Error,
    },
    Failure {
        command: String,
        output: Output,
    },
    ProbeFailure {
        name: String,
        command: String,
        output: Output,
    },
    // some variants omitted
}

Represents all reasons pkg-config might not succeed or be run at all.

Variants

EnvNoPkgConfig(String)

Aborted because of *_NO_PKG_CONFIG environment variable.

Contains the name of the responsible environment variable.

CrossCompilation

Detected cross compilation without a custom sysroot.

Ignore the error with PKG_CONFIG_ALLOW_CROSS=1, which may let pkg-config select libraries for the host’s architecture instead of the target’s.

Command

Failed to run pkg-config.

Contains the command and the cause.

Fields

command: String

cause: Error

Failure

pkg-config did not exit successfully after probing a library.

Contains the command and output.

Fields

command: String

output: Output

ProbeFailure

pkg-config did not exit successfully on the first attempt to probe a library.

Contains the command and output.

Fields

name: String

command: String

output: Output

Trait Implementations

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.