How do I effectively build nut without any support or links to systemd?

[PatVax]

I am on artix linux(systemd free distro). I am trying to make nut build on that system without any connection to systemd(since there is nothing from systemd in this distro).

And yet sudo upsdrvctl -F start prints this error /usr/lib/nut/usbhid-ups: error while loading shared libraries: libsystemd.so.0: cannot open shared object file: No such file or directory.

I am currently trying to run configure with the following arguments:

  ./configure \
    --prefix=/usr \
    --datadir=/usr/share/nut \
    --libexecdir=/usr/lib/nut \
    --sbindir=/usr/bin \
    --sysconfdir=/etc/nut \
    --disable-static \
    --with-user=nut \
    --with-group=nut \
    --with-altpidpath=/run/nut \
    --with-cgipath=/usr/share/nut/cgi \
    --with-drvpath=/usr/lib/nut \
    --with-htmlpath=/usr/share/nut/html \
    --with-pidpath=/run/nut \
    --with-statepath=/var/lib/nut \
    --with-systemdsystemunitdir=no \
    --with-libsystemd=no \
    --with-udev-dir=/usr/lib/udev \
    --with-cgi \
    --with-dev \
    --with-doc=man \
    --with-libltdl \
    --with-neon \
    --with-openssl \
    --with-serial \
    --with-snmp \
    --with-usb \
    --without-avahi \
    --without-ipmi \
    --without-freeipmi \
    --without-powerman \
    --without-wrap

This is my github repo were I am trying to make nut work without systemd

So is there some argument I can pass to configure so that existence of systemd on the build system isn't even checked?

[jimklimov]

Can you please post the summary NUT configure script shows after build? Are you certain the driver program you called does come from your build and not some other source (trying to wedge another distro's packages/files into this system etc.)?

The reference to libsystemd.so.0 in usbhid-ups or other binaries would only come via linker, and the exact file name from the build environment. If this platform lacks systemd, this binary was not built here. I'm say 99% sure :)

[PatVax]

@jimklimov Here is the configure summary. It is before make is run:

NUT Configuration summary:
==========================

* configured version:	2.8.2 (v2.8.2)
* build serial drivers:	yes 
* build USB drivers:	yes (libusb-1.0)
* build neon based XML driver:	yes 
* enable Avahi support:	no 
* build Powerman PDU client driver:	no 
* build Modbus driver:	no 
* build IPMI driver:	no 
* build GPIO driver:	no 
* build Mac OS X meta-driver:	no 
* build i2c based drivers:	no 
* enable SSL support:	yes (OpenSSL)
* enable libwrap (tcp-wrappers) support:	no 
* enable libltdl (Libtool dlopen abstraction) support:	yes 
* build nut-scanner:	yes 
* build CGI programs:	yes 
* install NUT-Monitor desktop application:	no 
* install PyNUT binding module:	no 
* build and install documentation:	man 
* build specific documentation format(s):	yes  man
* build and install the development files:	yes 
* consider basic SMF support:	no
* consider basic systemd support:	no 
* build with tighter systemd support:	no 
* build C++11 codebase (client library, etc.):	yes 
* build C++ tests with CPPUNIT:	no 
* build and install the nutconf tool (experimental, may lack support for recent NUT options):	yes 
* build SNMP drivers:	yes 
* build SNMP drivers with statically linked lib(net)snmp:	no 
* User to run as:	nut
* Group of user to run as:	nut

However, I know have verified that systemd is detected when the build is run in github workflow. When I run everything the same but on a native artix linux machine systemd remains undetected(how it should be). I am running the workflow on the standard ubuntu-latest github runner but inside an artix linux docker container that is started on the github runner. My guess is that for whatever reason something about systemd leaks over to the docker container which causes systemd to be detected.

Honestly a configure option to disable systemd detection whatsoever would be probably the easiest solution.

[PatVax]

I compared the summary on github workflow with the one on my native machine and they are exactly the same.

[jimklimov]

So as far as NUT build goes,

checking whether to install systemd unit files... no 

checking whether to consider basic systemd support... no 

checking whether to install systemd shutdown files... no 

checking whether to install systemd tmpfiles files... no 

checking for systemd-tmpfiles... /usr/bin/systemd-tmpfiles 

checking for libsystemd version via pkg-config... none found 

checking for libsystemd cflags... 

checking for libsystemd ldflags... -lsystemd 

checking for systemd/sd-daemon.h... no 

checking for sd_notify... no 

checking whether requested and can build binaries with tighter systemd integration support... no 

checking for systemd-analyze... /usr/bin/systemd-analyze 

checking whether to build with tighter systemd support... no 

I do not disagree that a single option to perhaps skip others could be useful though. FWIW, most of them are about generation and delivery of resource files like unit definitions; only the libsystemd (sd_notify et al) part impacts the binaries.

Note that at least systemd tools were found.

[jimklimov]

I took your package from GH at https://github.com/PatVax/artix-pkgbuilds/releases/download/nut-2.8.2-2/nut-2.8.2-2-x86_64.pkg.tar.zst and ldd does not find references to libsystemd:

~/artix $ ldd usr/lib/nut/usbhid-ups                                                     libusb-1.0.so.0 => not found                                                     libm.so.6 => not found                                                           libc.so.6 => not found

Never mind not found's, it is another OS I have under hand, but ldd seems to work as such; reproducing the test on your side is welcome :)

[PatVax]

This is how it looks at my side. artix-pkgbuilds/nut-2.8.2-2-x86_64.pkg.tar.zst is my locally compiled package. What OS are you using that accepts pacman packages? Normally it should make no difference with the same package but maybe it does idk.

$ sudo pacman -U https://github.com/PatVax/artix-pkgbuilds/releases/download/nut-2.8.2-2/nut-2.8.2-2-x86_64.pkg.tar.zst
loading packages...
warning: nut-2.8.2-2 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Packages (1) nut-2.8.2-2

Total Installed Size:  8.26 MiB
Net Upgrade Size:      0.38 MiB

:: Proceed with installation? [Y/n] Y
(1/1) checking keys in keyring                                                                                                                                           [########################################################################################################] 100%
(1/1) checking package integrity                                                                                                                                         [########################################################################################################] 100%
(1/1) loading package files                                                                                                                                              [########################################################################################################] 100%
(1/1) checking for file conflicts                                                                                                                                        [########################################################################################################] 100%
(1/1) checking available disk space                                                                                                                                      [########################################################################################################] 100%
:: Processing package changes...
(1/1) reinstalling nut                                                                                                                                                   [########################################################################################################] 100%
:: Running post-transaction hooks...
(1/3) Creating system user accounts...
/usr/lib/sysusers.d/util-linux.conf:1: Unknown modifier 'u!'.
(2/3) Creating temporary files...
/usr/lib/tmpfiles.d/nut.conf:1: Duplicate line for path "/run/nut", ignoring.
/usr/lib/tmpfiles.d/nut.conf:2: Duplicate line for path "/var/lib/nut", ignoring.
(3/3) Reloading device manager configuration...
$ ldd /usr/lib/nut/usbhid-ups
        linux-vdso.so.1 (0x000078608478d000)
        libsystemd.so.0 => not found
        libusb-1.0.so.0 => /usr/lib/libusb-1.0.so.0 (0x0000786084719000)
        libm.so.6 => /usr/lib/libm.so.6 (0x0000786084629000)
        libc.so.6 => /usr/lib/libc.so.6 (0x000078608443b000)
        libudev.so.1 => /usr/lib/libudev.so.1 (0x00007860843f4000)
        /lib64/ld-linux-x86-64.so.2 => /usr/lib64/ld-linux-x86-64.so.2 (0x000078608478f000)
        libcap.so.2 => /usr/lib/libcap.so.2 (0x00007860843e6000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007860843b9000)
$ sudo pacman -U artix-pkgbuilds/nut-2.8.2-2-x86_64.pkg.tar.zst
loading packages...
warning: nut-2.8.2-2 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Packages (1) nut-2.8.2-2

Total Installed Size:   7.88 MiB
Net Upgrade Size:      -0.38 MiB

:: Proceed with installation? [Y/n] Y
(1/1) checking keys in keyring                                                                                                                                           [########################################################################################################] 100%
(1/1) checking package integrity                                                                                                                                         [########################################################################################################] 100%
(1/1) loading package files                                                                                                                                              [########################################################################################################] 100%
(1/1) checking for file conflicts                                                                                                                                        [########################################################################################################] 100%
(1/1) checking available disk space                                                                                                                                      [########################################################################################################] 100%
:: Processing package changes...
(1/1) reinstalling nut                                                                                                                                                   [########################################################################################################] 100%
:: Running post-transaction hooks...
(1/3) Creating system user accounts...
/usr/lib/sysusers.d/util-linux.conf:1: Unknown modifier 'u!'.
(2/3) Creating temporary files...
(3/3) Reloading device manager configuration...
$ ldd /usr/lib/nut/usbhid-ups
        linux-vdso.so.1 (0x00007b5742353000)
        libusb-1.0.so.0 => /usr/lib/libusb-1.0.so.0 (0x00007b57422e1000)
        libm.so.6 => /usr/lib/libm.so.6 (0x00007b57421f1000)
        libc.so.6 => /usr/lib/libc.so.6 (0x00007b5742003000)
        libudev.so.1 => /usr/lib/libudev.so.1 (0x00007b5741fbc000)
        /lib64/ld-linux-x86-64.so.2 => /usr/lib64/ld-linux-x86-64.so.2 (0x00007b5742355000)
        libcap.so.2 => /usr/lib/libcap.so.2 (0x00007b5741fb0000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007b5741f83000)

If I extract the package manually with tar there is no systemd link. Strange

$ wget https://github.com/PatVax/artix-pkgbuilds/releases/download/nut-2.8.2-2/nut-2.8.2-2-x86_64.pkg.tar.zst
$ tar -xf nut-2.8.2-2-x86_64.pkg.tar.zst
$ ldd usr/lib/nut/usbhid-ups
        linux-vdso.so.1 (0x000076c5bd3ae000)
        libusb-1.0.so.0 => /usr/lib/libusb-1.0.so.0 (0x000076c5bd33c000)
        libm.so.6 => /usr/lib/libm.so.6 (0x000076c5bd24c000)
        libc.so.6 => /usr/lib/libc.so.6 (0x000076c5bd05e000)
        libudev.so.1 => /usr/lib/libudev.so.1 (0x000076c5bd017000)
        /lib64/ld-linux-x86-64.so.2 => /usr/lib64/ld-linux-x86-64.so.2 (0x000076c5bd3b0000)
        libcap.so.2 => /usr/lib/libcap.so.2 (0x000076c5bd00b000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x000076c5bcfdc000)