Meson does not expose PKG_CONFIG_SYSROOT_DIR to the pkg-config process. Currently meson.cross as generated in meson.bbclass points directly to the pkg-config executable (no wrapper script).
PKG_CONFIG_SYSROOT_DIR behaves like a simple string prepend to all package config variable queries. So if you want to determine the absolute path of a variable in .pc you set PKG_CONFIG_SYSROOT_DIR and make your query. Currently this is not possible with Yocto+Meson. I think a simple wrapper script would resolve this. This is from https://autotools.io/pkgconfig/cross-compiling.html: #!/bin/sh SYSROOT=/build/root export PKG_CONFIG_PATH= export PKG_CONFIG_LIBDIR=${SYSROOT}/usr/lib/pkgconfig:${SYSROOT}/usr/share/pkgconfig export PKG_CONFIG_SYSROOT_DIR=${SYSROOT} exec pkg-config "$@" The wrapper script would be generated per recipe via meson.bbclass, meson.cross would then reference this wrapper instead of the pkg-config executable. Thoughts? Joel
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