Build failure on every Ubuntu version.
Full log here:
https://launchpadlibrarian.net/331583006/buildlog_ubuntu-artful-amd64.mesa_17.3~git1708020730.f28c2e~gd~a_BUILDING.txt.gz

Error:
        Run 'make' to build Mesa

cd /<<PKGBUILDDIR>>/build/dri && /usr/bin/make
make[1]: Entering directory '/<<PKGBUILDDIR>>/build/dri'
Making all in src
make[2]: Entering directory '/<<PKGBUILDDIR>>/build/dri/src'
Traceback (most recent call last):
  File "../../../bin/git_sha1_gen.py", line 15, in <module>
    ], stderr=open(os.devnull, 'w'))
  File "/usr/lib/python2.7/subprocess.py", line 212, in check_output
    process = Popen(stdout=PIPE, *popenargs, **kwargs)
  File "/usr/lib/python2.7/subprocess.py", line 390, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1024, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
Makefile:1145: recipe for target 'git_sha1.h.tmp' failed
make[2]: *** [git_sha1.h.tmp] Error 1
make[2]: Leaving directory '/<<PKGBUILDDIR>>/build/dri/src'
Makefile:650: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>/build/dri'
debian/rules:186: recipe for target 'debian/stamp/x86_64-linux-gnu-build-dri' failed
make: *** [debian/stamp/x86_64-linux-gnu-build-dri] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2