why :: in ports makefile ?

[Michael Scheidell]

I have never seen this before, and I wanted to know what it does.

diff -ruN /tmp/p5-Mail-SpamAssassin.org/Makefile /tmp/p5-Mail-SpamAssassin/Makefile
--- /tmp/p5-Mail-SpamAssassin.org/Makefile	2012-02-08 00:17:28.000000000 +0900
+++ /tmp/p5-Mail-SpamAssassin/Makefile	2012-03-06 08:55:28.445163638 +0900
@@ -219,7 +219,7 @@
  .endif
  	@${INSTALL_DATA} ${WRKSRC}/spamc/libspamc.h ${PREFIX}/include

-post-install:
+post-install::
  .if defined (WITH_SPAMC)
  	@${STRIP_CMD} ${PREFIX}/bin/spamc
  .endif

(this patch was sent to me by the maintainer of ja-p5-Mail-SpamAssassin.  I suggested that he change his port to a slave port so that it would be easier to follow, and he has done a good job.

I just wanted to know what the differences are in the port Makefile between a ':' and a '::'

Does this have to do with slave port(ish) things? does this force it to execute?  what is it?

Pardon my ignorance, I have just never seen this before in any port I have maintained, or worked on.

(reference this PR for context)

<http://www.freebsd.org/cgi/query-pr.cgi?pr=165765>




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Michael Scheidell, CTO
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