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Date: Sun, 14 Apr 2019 18:07:30 +0200
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To: Internals <internals@lists.php.net>
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Subject: Required Make version
From: peterkokot@gmail.com (Peter Kokot)

Hello,

people familiar with the PHP *nix build system today can be probably
counted on the fingers of two hands, so I'm hoping to get some answer
also here.

Does anyone maybe still have any insights on which Make version does
PHP require or silently specify as a minimum? GNU make? POSIX make?
Maybe some GNU make minimum version? 3.81? etc...

Currently, there are two steps where different make can be used:

1.) ./buildconf
(here GNU make is required because of using the conditional macro
assignment operator ?= in build/build2.mk file)

2.) make step after ./configure
(here POSIX make can go through more or less ok).

This is seen, for example, on the Solaris systems where doing this:

    ./buildconf

causes:

    make: Fatal error in reader: build/build.mk, line 22: Badly formed
macro assignment

so, this needs to be done:

    MAKE=gmake ./buildconf

however, this works then ok:

    ./configure
    make

Is this confirmed and ok with everyone that GNU make is the minimum
required derivative for PHP to be used? Or should software such as PHP
be an example and use POSIX compatible make?

Reason for asking this: https://github.com/php/php-src/pull/4025 and
similar improvements...

Thank you.

-- 
Peter Kokot