[PATCH] configure.ac: do not hardcode gnu libc when generating lock-obj

[NIIBE Yutaka]

"Alexander Kanavin" <alex at linutronix.de> wrote:
> The case which we (the Yocto project) would like to support is building for systems
> with Linux kernel and musl C library.

Thank you.

Applied in: e17cf023d894acc3932505f66fbd9c31ce56793f
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