error: '_PATH_MOUNTED' undeclared

[valerytschopp]

I'm trying to build the Docker image but it fails when compiling libvirt 3.2.0

$ docker build -t kumina-libvirt-exporter .
...
storage/storage_backend_fs.c: In function 'virStorageBackendFileSystemIsMounted':
storage/storage_backend_fs.c:306:23: error: '_PATH_MOUNTED' undeclared (first use in this function); did you mean 'XPATH_POINT'?
  306 |     if ((mtab = fopen(_PATH_MOUNTED, "r")) == NULL) {
      |                       ^~~~~~~~~~~~~
      |                       XPATH_POINT
storage/storage_backend_fs.c:306:23: note: each undeclared identifier is reported only once for each function it appears in
make[3]: *** [Makefile:10174: storage/libvirt_storage_backend_fs_la-storage_backend_fs.lo] Error 1
make[3]: *** Waiting for unfinished jobs....
gcc: warning: switch '-Wchkp' is no longer supported
make[3]: Leaving directory '/tmp/libvirt-3.2.0/src'
make[2]: *** [Makefile:5941: all] Error 2
make[2]: Leaving directory '/tmp/libvirt-3.2.0/src'
make[1]: Leaving directory '/tmp/libvirt-3.2.0'
make[1]: *** [Makefile:2084: all-recursive] Error 1
make: *** [Makefile:1981: all] Error 2
The command '/bin/sh -c ./configure --disable-shared --enable-static --localstatedir=/var --without-storage-mpath &&     make -j2 &&     make install &&     sed -i 's/^Libs:.*/& -lnl -ltirpc -lxml2/' /usr/local/lib/pkgconfig/libvirt.pc' returned a non-zero code: 2
$

Any idea how to fix this?