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lang-tex
TEXINPUTS.pdflatex(latex, etc.) directory, rather than the directory containing the file? That seems to break the concept of a relative pathname. Shouldn't we expect\include{./foo.tex}in a filebar.texto look forfoo.texin the same directory asbar.tex?pdflatexprocess. If you do a complex C compilation, you can move from a directory to another and use relative paths, but only when compiling one of the.cfiles. Then a linking phase takes place, but there's no analogy with linking in TeX: everything is obtained in a unique run. One could modify\input(not\include, I'm afraid) to use a path relative to the file it's called from.$HOME(only have one include file), since that is searched by default by Latex. Otherwise, as others said, use $TEXINPUTS