sudo make clean install
rm -f st st.o x.o st-0.7.tar.gz
cc -I/usr/X11R6/include `pkg-config --cflags fontconfig` `pkg-config --cflags freetype2` -DVERSION=\"0.7\" -D_XOPEN_SOURCE=600  -c st.c
st.c:225:21: error: ‘plumber’ undeclared here (not in a function)
 char *plumber_cmd = plumber;
                     ^
st.c: In function ‘ttyread’:
st.c:859:33: error: ‘histsize’ undeclared (first use in this function)
  if (term.scr > 0 && term.scr < histsize-1)
                                 ^
st.c:859:33: note: each undeclared identifier is reported only once for each function it appears in
st.c: In function ‘kscrollup’:
st.c:1101:18: error: ‘histsize’ undeclared (first use in this function)
  if (term.scr <= histsize - n) {
                  ^
st.c: In function ‘tscrolldown’:
st.c:1117:34: error: ‘histsize’ undeclared (first use in this function)
   term.histi = (term.histi - 1 + histsize) % histsize;
                                  ^
st.c: In function ‘tscrollup’:
st.c:1144:35: error: ‘histsize’ undeclared (first use in this function)
   term.histi = (term.histi + 1) % histsize;
                                   ^
st.c: In function ‘tresize’:
st.c:2601:18: error: ‘histsize’ undeclared (first use in this function)
  for (i = 0; i < histsize; i++) {
                  ^
make: *** [st.o] Error 1