$ LC_ALL=C makepkg -csi
[...]
configure: WARNING: unrecognized options: --disable-schemas-install, --with-session-tracking
Now type `make' to compile cinnamon
make  all-recursive
make[1]: Entering directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b'
Making all in data
make[2]: Entering directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b/data'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b/data'
Making all in js
make[2]: Entering directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b/js'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b/js'
Making all in src
make[2]: Entering directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b/src'
  GEN      st-enum-types.c
  GEN      stamp-st-marshal.h
  GEN      st-marshal.c
  GEN      stamp-st.h
  GEN      stamp-na-marshal.h
  GEN      na-marshal.c
  GEN      stamp-cinnamon-marshal.h
  GEN      cinnamon-marshal.c
  GEN      cinnamon-enum-types.c
make  all-am
make[3]: Entering directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b/src'
  CC       libst_1_0_la-st-enum-types.lo
  CC       libst_1_0_la-st-marshal.lo
  CCLD     libst-1.0.la
  CC       libtray_la-na-marshal.lo
  CCLD     libtray.la
  CC       libcinnamon_la-cinnamon-marshal.lo
  CC       libcinnamon_la-cinnamon-enum-types.lo
  CCLD     libcinnamon.la
  CCLD     cinnamon-real
  CCLD     test-theme
  CCLD     run-js-test
  GEN      cinnamon-extension-tool
  GEN      cinnamon
  GEN      hotplug-sniffer/org.Cinnamon.HotplugSniffer.service
  GISCAN Gvc-1.0.gir
gvc/gvc-mixer-control.h:49: Warning: Gvc: symbol='RECONNECT_DELAY': Unknown namespace for symbol 'RECONNECT_DELAY'
<unknown>:: Fatal: Gvc: warnings configured as fatal
<unknown>:: Fatal: Gvc: warnings configured as fatal

make[3]: *** [Gvc-1.0.gir] Error 1
make[3]: Leaving directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b/src'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/dennis/Hämtningar/cinnamon/src/linuxmint-Cinnamon-e84a25b'
make: *** [all] Error 2
==> ERROR: A failure occurred in build().
    Aborting...