Managing projects with gnu make, 3rd edition by Robert Mecklenburg

Author:Robert Mecklenburg [Robert Mecklenburg]
Language: eng
Format: epub
Tags: Sciences
ISBN: 9780596104450
Published: 2009-02-09T00:00:00+00:00

A Standard Shell

It is worth reiterating here that one of the irksome incompatibilities one finds in moving from system to system is the capabilities of /bin/sh, the default shell used by make. If you find yourself tweaking the command scripts in your makefile, you should consider standardizing your shell. Of course, this is not reasonable for the typical open source project where the makefile is executed in uncontrolled environments. However, in a controlled setting, with a fixed set of specially configured machines, this is quite reasonable.

In addition to avoiding shell incompatibilities, many shells provide features that can avoid the use of numerous small utilities. For example, the bash shell includes enhanced shell variable expansion, such as %% and ##, that can help avoid the use of shell utilities, such as sed and expr.

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