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    SubjectRe: [GIT PULL] perf fixes

    * David Ahern <dsahern@gmail.com> wrote:

    > On 9/12/13 1:46 PM, Ingo Molnar wrote:
    > >>>Mind outlining the approach you are thinking about?
    > >>>
    > >>>Firstly, please don't even think about autotools. (Just forget it exists.)
    > >>
    > >>hehe, no, that wasn't considered.
    > >
    > >/phew! :-)
    >
    > kconf approach of course:
    > https://lkml.org/lkml/2013/4/1/600
    > (minus the manual steps in that RFC).

    I'm not sure what the end stage is where you'd like to arrive, but I don't
    think that forcing a separate configuration pass is an improvement :-/

    By default a simple 'make' should build perf to the maximum extent
    possible, with no other input required from the user - with warnings
    displayed as package install suggestions.

    This:

    Enable newt-based TUI (NEWT) [N/y] (NEW) y
    Enable GTK-based UI (GTK2) [N/y] (NEW) n
    Enable support for Bionic (e.g., Android platform) (BIONIC) [N/y] (NEW)
    Development support for libc is available - glibc or bionic (LIBC) [N/y]
    (NEW) y
    Enable support for libelf (LIBELF) [N/y] (NEW) y
    Enable support for libunwind (LIBUNWIND) [N/y] (NEW) y
    Enable support for dwarf (DWARF) [N/y] (NEW) y
    Enable support for demangle (DEMANGLE) [N/y] (NEW) y
    Enable support for perl scripting engine (LIBPERL) [N/y] (NEW) y
    Enable support for python scripting engine (LIBPYTHON) [N/y] (NEW) y
    Enable support for libaudit (LIBAUDIT) [N/y/?] (NEW) y
    Enable support for libnuma (LIBNUMA) [N/y/?] (NEW) y
    Enable support for stack backtrace debugging (BACKTRACE) [N/y] (NEW) y

    would be useful only as long as each listed option is actually
    _buildable_. I.e. it should not be possible for the user to configure perf
    in a way that makes the build fail.

    I.e. this should go on top of a feature detection logic, allowing further
    customization, for features that the user might want to turn off.

    Thanks,

    Ingo


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