Windows Makefiles and TEXINPUTS - windows

Question

Remark: Put this Question on tex.stackexchange and was adviced to also ask here
Under Windows (using make from GnuWin32) i want to set my TEXINPUTS variable in a makefile
My Structure is as follows:
./
|-texmf_project/
|-Package.sty
|-main.tex
|-makefile
I want to be able to use Package.sty in my compilation process. The files look like this:
Package.sty contains:
\ProvidesClass{Package}[]
\NeedsTeXFormat{LaTeX2e}
\RequirePackage{xcolor}
\newcommand{\red}[1]{\textcolor{red}{#1}}
main.tex contains:
\documentclass[11pt,a4paper]{report}
\usepackage{xcolor}
\usepackage{Package}
\begin{document}
Hello World\\
\red{Hello World}
\end{document}
Now i want to set the TEXINPUTS to include what is in ./texmf-project/
Hence my Makefile:
edit:
set TEXINPUTS=./texmf-project//;
pdflatex -synctex=1 -interaction=nonstopmode main.tex
del *.log
del *.aux
However this does not seem to make the location available for compilation.
However if I put the line
set TEXINPUTS=./texmf-project//; directly into the cmd and run make afterwards it works.
I believe I am making a mistake with the set, but I am far from beeing an expert.
Any helps or hints would be greatly appreciated.
Edit: Fixed a spelling mistake

Answer 1

Please remember that every recipe line is executed in a separate shell, so your set is executed in a different shell than pdflatex. Either put those two commands on a single line, or concatenate lines with \ so that lines are executed in a single shell, i.e.:
edit:
set TEXINPUTS=./texmf-project//; \
pdflatex -synctex=1 -interaction=nonstopmode main.tex
Edit:
Since this is Windows, it gets more complicated. Just adding \ and even & is not enough, since make will run it in a single line (through a batch file):
> type Makefile
all:
set TEXINPUTS=./texmf-project// & \
echo %TEXINPUTS%
> make -dr
...
Must remake target 'all'.
Creating temporary batch file C:\Users\user\AppData\Local\Temp\make11444-1.bat
Batch file contents:
#echo off
set TEXINPUTS=./texmf-project// & echo %TEXINPUTS%
...
ECHO is off.
...
Now, cmd.exe uses a line parser that expands variables when the line is parsed, so it first expands %TEXINPUTS% to an empty string (since it was not yet defined) and after that it evaluates the code which sets the variable. Therefore it is crucial that those commands are on separate lines to have variable set before it is used. The easiest way (if you use quite modern make) is including a .ONESHELL directive which would place all recipe into the batch and execute all at once:
> type Makefile
.ONESHELL:
all:
set TEXINPUTS=./texmf-project//
echo %TEXINPUTS%
> make -dr
...
Must remake target 'all'.
Creating temporary batch file C:\Users\user\AppData\Local\Temp\make29908-1.bat
Batch file contents:
#echo off
set TEXINPUTS=./texmf-project//
echo %TEXINPUTS%
...
./texmf-project//
...
Alternatively, if you don't somehow calculate the value, you can just set the variable at the make level (global or target level) and export it to the process, i.e.:
> type Makefile
all: export TEXINPUTS := ./texmf-project//
all:
echo %TEXINPUTS%
> make -dr
...
Must remake target 'all'.
Creating temporary batch file C:\Users\user\AppData\Local\Temp\make25392-1.bat
Batch file contents:
#echo off
echo %TEXINPUTS%
...
./texmf-project//
...