Run-time dependency libcap is not found

[yblin00]

systemd version the issue has been seen with

255

Used distribution

Ubuntu 18.04

Linux kernel version used

5.10.16.3-microsoft-standard-WSL2

CPU architectures issue was seen on

aarch64

Component

systemd

Expected behaviour you didn't see

No errors.

Unexpected behaviour you saw

yblin@RD-SW12-NB:/opensrc_lib/systemd-stable-255$ meson setup --cross-file aarch64-linux-musl.txt build
WARNING: Unknown CPU family cortex-a53, please report this at https://github.com/mesonbuild/meson/issues/new
The Meson build system
Version: 0.61.5
Source dir: /home/yblin/opensrc_lib/systemd-stable-255
Build dir: /home/yblin/opensrc_lib/systemd-stable-255/build
Build type: cross build
Project name: systemd
Project version: 255
C compiler for the host machine: /home/yblin/aarch64-linux-musl-cross/bin/aarch64-linux-musl-gcc (gcc 10.2.1 "aarch64-linux-musl-gcc (GCC) 10.2.1 20210227")C linker for the host machine: /home/yblin/aarch64-linux-musl-cross/bin/aarch64-linux-musl-gcc ld.bfd 2.36.1
C compiler for the build machine: cc (gcc 7.5.0 "cc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0")
C linker for the build machine: cc ld.bfd 2.30
Build machine cpu family: x86_64
Build machine cpu: x86_64
Host machine cpu family: cortex-a53
Host machine cpu: aarch64
Target machine cpu family: cortex-a53
Target machine cpu: aarch64
Program tools/add-git-hook.sh found: YES (/home/yblin/opensrc_lib/systemd-stable-255/tools/add-git-hook.sh)
Program tools/meson-build.sh found: YES (/home/yblin/opensrc_lib/systemd-stable-255/tools/meson-build.sh)
C++ compiler for the host machine: /home/yblin/aarch64-linux-musl-cross/bin/aarch64-linux-musl-g++ (gcc 10.2.1 "aarch64-linux-musl-g++ (GCC) 10.2.1 20210227")
C++ linker for the host machine: /home/yblin/aarch64-linux-musl-cross/bin/aarch64-linux-musl-g++ ld.bfd 2.36.1
Compiler for C supports arguments -Wno-missing-field-initializers: YES
Compiler for C supports arguments -Wno-unused-parameter: YES
Compiler for C supports arguments -Warray-bounds: YES
Compiler for C supports arguments -Warray-bounds=2: YES
Compiler for C supports arguments -Wdate-time: YES
Compiler for C supports arguments -Wendif-labels: YES
Compiler for C supports arguments -Werror=format=2: YES
Compiler for C supports arguments -Werror=format-signedness: YES
...

Library dl found: YES
Pkg-config binary for 1 is not cached.
Pkg-config binary missing from cross or native file, or env var undefined.
Default target is not allowed for cross use
Found Pkg-config: NO
Pkg-config binary for machine 1 not found. Giving up.
CMake binary for 1 is not cached
CMake binary missing from cross or native file, or env var undefined.
Default target is not allowed for cross use
Found CMake: NO
CMake binary for machine 1 not found. Giving up.
Run-time dependency libcrypt found: NO (tried pkgconfig and cmake)
Pkg-config binary for 1 is cached as not found.
Pkg-config binary for machine 1 not found. Giving up.
CMake binary for 1 is cached as not found
CMake binary for machine 1 not found. Giving up.
Run-time dependency libxcrypt found: NO (tried pkgconfig and cmake)
Running compile:
Working directory: /home/yblin/opensrc_lib/systemd-stable-255/build/meson-private/tmpkobgxqwl
Command line: /home/yblin/aarch64-linux-musl-cross/bin/aarch64-linux-musl-gcc /home/yblin/opensrc_lib/systemd-stable-255/build/meson-private/tmpkobgxqwl/testfile.c -o /home/yblin/opensrc_lib/systemd-stable-255/build/meson-private/tmpkobgxqwl/output.exe -D_FILE_OFFSET_BITS=64 -O0 -Wl,--start-group -lcrypt -Wl,--end-group -Wl,--allow-shlib-undefined

Code:
int main(void) { return 0; }

Compiler stdout:

Compiler stderr:

Library crypt found: YES
Pkg-config binary for 1 is cached as not found.
Pkg-config binary for machine 1 not found. Giving up.
CMake binary for 1 is cached as not found
CMake binary for machine 1 not found. Giving up.
Run-time dependency libcap found: NO

meson.build:1019:0: ERROR: Pkg-config binary for machine 1 not found. Giving up.

yblin@RD-SW12-NB:~/opensrc_lib/systemd-stable-255$ ### pkg-config --list-all
systemd systemd - systemd System and Service Manager
mount mount - mount library
python2 Python - Python library
python3 Python - Python library
usbutils usbutils - USB device database
python-3.6m Python - Python library
xkeyboard-config XKeyboardConfig - X Keyboard configuration data
python Python - Python library
uuid uuid - Universally unique id library
blkid blkid - Block device id library
udev udev - udev
python-2.7 Python - Python library
bash-completion bash-completion - programmable completion for the bash shell
python-3.6 Python - Python library
yaml-cpp Yaml-cpp - A YAML parser and emitter for C++
expat expat - expat XML parser
libcap libcap - libcap - linux capabilities library
iso-codes iso-codes - ISO country, language, script and currency codes and translations
libpsx libpsx - libpsx - linux posix syscall API for pthreads
shared-mime-info shared-mime-info - Freedesktop common MIME database

Steps to reproduce the problem

1. Download systemd-stable-255.tar.gz from the website https://github.com/systemd/systemd-stable/releases

2. tar zxvf systemd-stable-255.tar.gz

3. Use the command to download cross compiler
   git clone https://github.com/lovell/aarch64-linux-musl-crosstools.git

4. Create a file "aarch64-linux-musl.txt" in folder systemd-stable-255.
   The content of aarch64-linux-musl.txt is

[binaries]
c = '/home/yblin/aarch64-linux-musl-cross/bin/aarch64-linux-musl-gcc'
cpp = '/home/yblin/aarch64-linux-musl-cross/bin/aarch64-linux-musl-g++'
ar = '/home/yblin/aarch64-linux-musl-cross/bin/aarch64-linux-musl-ar'
strip = '/home/yblin/aarch64-linux-musl-cross/bin/aarch64-linux-musl-gcc-strip'

[host_machine]
system = 'windows'
cpu_family = 'cortex-a53'
cpu = 'aarch64'
endian = 'little'

5. Build the library libcap-2.63 with the tool-chain aarch64-linux-musl, and then install the library in path /usr/local/lib

6. At path "systemd-stable-255", type the following command
   meson setup --cross-file aarch64-linux-musl.txt build

Additional program output to the terminal or log subsystem illustrating the issue

No response

[bluca]

The required dependencies are listed in the README. This is bug tracker, not a user support forum.

[yuwata]

Also, musl is not officially supported.