[pushed] Re-apply "Pass PKG_CONFIG_PATH down from top-level Makefile"

[Alan Modra]

On Tue, Oct 11, 2022 at 11:10:05PM -0400, Simon Marchi via Binutils wrote:
> From: Simon Marchi <simon.marchi@efficios.com>
> 
> Commit 228cf97dd3c8 ("Merge configure.ac from gcc project") undid the
> change originally done in de83289ef32e ("Pass PKG_CONFIG_PATH down from
> top-level Makefile").  Re-apply it.

Sorry, and thanks for fixing it.

-- 
Alan Modra
Australia Development Lab, IBM