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Date:      Wed, 18 Aug 2004 12:04:19 +0300
From:      Ruslan Ermilov <ru@freebsd.org>
To:        Harti Brandt <harti@freebsd.org>
Cc:        ports-committers@freebsd.org
Subject:   Re: cvs commit: ports/java/jdk14 Makefile
Message-ID:  <20040818090418.GA91463@ip.net.ua>
In-Reply-To: <20040818102107.S872@beagle.kn.op.dlr.de>
References:  <200408180706.i7I763ps032344@repoman.freebsd.org> <20040818081702.GB91053@ip.net.ua> <20040818102107.S872@beagle.kn.op.dlr.de>

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On Wed, Aug 18, 2004 at 10:25:32AM +0200, Harti Brandt wrote:
> On Wed, 18 Aug 2004, Ruslan Ermilov wrote:
[...]
> RE>2. Makefile can modify this global as necessary, either by
> RE>modifying the variable directly (including adding to it,
> RE>overriding it, or even undefining it with .undef), or thru
> RE>the special .MAKEFLAGS macro.
>                           ^^^^^ target (see commented out line in Makefil=
e=20
> below)
>=20
Also, "submakes" here and there should actually read "all programs
that make executes".

[...]

> This is an excellent explanation. Perhaps we can put part of it into=20
> make(1)?
>=20
You mean documenting the difference between .MAKEFLAGS macro
and .MAKEFLAGS target?

%%%
Index: make.1
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /home/ncvs/src/usr.bin/make/make.1,v
retrieving revision 1.78
diff -u -r1.78 make.1
--- make.1	9 Aug 2004 16:13:54 -0000	1.78
+++ make.1	18 Aug 2004 09:02:15 -0000
@@ -581,6 +581,15 @@
 for all programs which
 .Nm
 executes.
+By modifying the contents of the
+.Va .MAKEFLAGS
+variable, makefile can alter the contents of the
+.Va MAKEFLAGS
+environment variable made available for all programs which
+.Nm
+executes; compare with the
+.Ic .MAKEFLAGS
+special target below.
 .It Va MFLAGS
 is provided for backward compatibility and
 contains all the options from the
@@ -1146,6 +1155,20 @@
 .Fl f
 option will have
 no effect.
+Flags (except for
+.Fl f )
+and variable assignments specified as the source
+for this target are also appended to the
+.Va .MAKEFLAGS
+internal variable.
+Please note the difference between this target and the
+.Va .MAKEFLAGS
+internal variable: specifying an option or variable
+assignment as the source for this target will affect
+.Em both
+the current makefile and all processes that
+.Nm
+executes.
 .It Ic .MFLAGS
 Same as above, for backward compatibility.
 .\" XXX: NOT YET!!!!
%%%


Cheers,
--=20
Ruslan Ermilov
ru@FreeBSD.org
FreeBSD committer

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