mainAutoconf - Support: sr #110431, AC_INIT should accept shell...


sr #110431: AC_INIT should accept shell variable expansion in its arguments

Submitter:  Zack Weinberg <zackw>
Submitted:  Sat 23 Jan 2021 08:02:32 PM UTC
Category:  None Priority:  5 - Normal
Severity:  3 - Normal Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Operating System:  None
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Sat 23 Jan 2021 08:02:32 PM UTC, original submission:  

Currently, none of the arguments to AC_INIT can be computed when you run 'configure'.  If you use two-argument AM_INIT_AUTOMAKE, on the other hand, you can pass shell variables as the arguments.  The Automake manual calls this out as a reason to continue using two-argument AM_INIT_AUTOMAKE:

> differently from what happens for AC_INIT invocations, this AM_INIT_AUTOMAKE invocation supports shell variables’ expansions in the PACKAGE and VERSION arguments (which otherwise defaults, respectively, to the PACKAGE_TARNAME and PACKAGE_VERSION defined via the AC_INIT invocation; see The AC_INIT macro in The Autoconf Manual); and this can still be useful in some selected situations. Our hope is that future Autoconf versions will improve their support for package versions defined dynamically at configure runtime; when (and if) this happens, support for the two-args AM_INIT_AUTOMAKE invocation will likely be removed from Automake.

So we should find a way to support shell variable expansion in the arguments to AC_INIT.

Zack Weinberg <zackw>
Group administrator


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