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# FindBacktrace

Find provider for backtrace(3).

Checks if OS supports backtrace(3) via either libc or custom library. This module defines the following variables:

    Backtrace_HEADER       - The header file needed for backtrace(3). Cached.
                             Could be forcibly set by user.
    Backtrace_INCLUDE_DIRS - The include directories needed to use backtrace(3) header.
    Backtrace_LIBRARIES    - The libraries (linker flags) needed to use backtrace(3), if any.
    Backtrace_FOUND        - Is set if and only if backtrace(3) support detected.

The following cache variables are also available to set or use:

    Backtrace_LIBRARY     - The external library providing backtrace, if any.
    Backtrace_INCLUDE_DIR - The directory holding the backtrace(3) header.

Typical usage is to generate of header file using configure_file() with the contents like the following:

    #cmakedefine01 Backtrace_FOUND
    #if Backtrace_FOUND
    # include <${Backtrace_HEADER}>
    #endif

And then reference that generated header file in actual source.

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