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Asked: 2026-05-12T16:48:21+00:00

So, to compile my executable, I need to have the library locations set up

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So, to compile my executable, I need to have the library locations set up correctly. The problem is, the setup comes from a bunch of scripts that do the env variable exporting, and what needs to be set up may change (beyond my control) so I need to use those scripts instead of copying their functionality. To compile in regular command line, I need to do something like:

setup library1
setup library2
source some_other_setup_script.bash
g++ blah.c
# setup is a executable on my system that run some scripts

How would I write a makefile that accomplishes that? As far as I tried, the env variable exporting does not carry over (i.e. “export VAR=remember; echo $VAR” won’t work)

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1 Answer

  1. Editorial Team

    If variable exporting is not working the way it does on your command line, that suggests that Make is choosing a shell different from the one you’re using, with different syntax for handling variables (export VAR=remember; echo $VAR works fine for me). Make uses /bin/sh by default, but you can override this with the SHELL variable, which Make does not import from the environment. I suggest setting SHELL (in the Makefile) to whatever you’re using in your environment and trying the export VAR=remember experiment again.

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