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From: "Helmut Schneider" <jumper99@gmx.de>
Date: Sun, 13 Feb 2011 14:14:17 +0000 (UTC)
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Subject: Makefile, ${VARIABLE}= vs. ${VARIABLE}?=
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Hi,

[helmut@BSDHelmut ~]$ grep -ir latest /usr/ports/www/apache2?
/usr/ports/www/apache20/Makefile:LATEST_LINK=   apache20
/usr/ports/www/apache22/Makefile:LATEST_LINK?=  apache22
[helmut@BSDHelmut ~]$

So, what's the difference between e.g. "LATEST_LINK=" and
"LATEST_LINK?="?

Thanks, Helmut