crossref.fls is generated.
Makefiles variable -- TEXFILES= LATEXINTFILES= GRAPHICFILES= BIBDB=
crossref.d is generated by scanning crossref.tex and crossref.fls.
platex -interaction=batchmode crossref.tex
LaTeX Warning: There were undefined references.
platex -interaction=batchmode crossref.tex
LaTeX Warning: There were undefined references.
platex -interaction=batchmode crossref.tex
LaTeX Warning: There were undefined references.
platex -interaction=batchmode crossref.tex
platex is run 3 times, but there are still undefined references.
crossref.tex:46: LaTeX Warning: Reference `noexist' on page 1 undefined on input line 46.

LaTeX Warning: There were undefined references.

make: *** [crossref.dvi] Error 1