Subject: btrfs-progs fails to cross-compile

From: Pavel Shlyak <[email-masked]>
Date: Sat, 21 May 2022 21:02:00 +0300

I can build it natively on aarch64 or x86_64. Only cross-compilation fails
To reproduce, run (on x86_64 host)
guix build btrfs-progs --target=aarch64-linux-gnu
Output:

configure: error: Package requirements (libudev) were not met:

No package 'libudev' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables LIBUDEV_CFLAGS
and LIBUDEV_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
error: in phase 'configure': uncaught exception:
%exception #<&invoke-error program: "/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash" arguments: ("./configure" "CC_FOR_BUILD=gcc" "CONFIG_SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash" "SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash" "--prefix=/gnu/store/0sa8vdwlg49bdcshpnp8ry0mjszncn40-btrfs-progs-5.15.1" "--enable-fast-install" "--build=x86_64-unknown-linux-gnu" "--host=aarch64-linux-gnu") exit-status: 1 term-signal: #f stop-signal: #f>
phase `configure' failed after 1.1 seconds
command "/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash" "./configure" "CC_FOR_BUILD=gcc" "CONFIG_SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash" "SHELL=/gnu/store/4y5m9lb8k3qkb1y9m02sw9w9a6hacd16-bash-minimal-5.1.8/bin/bash" "--prefix=/gnu/store/0sa8vdwlg49bdcshpnp8ry0mjszncn40-btrfs-progs-5.15.1" "--enable-fast-install" "--build=x86_64-unknown-linux-gnu" "--host=aarch64-linux-gnu" failed with status 1