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This changes the buildlink3.mk files to use an include guard for the
recursive include. The use of BUILDLINK_DEPTH, BUILDLINK_DEPENDS,
BUILDLINK_PACKAGES and BUILDLINK_ORDER is handled by a single new
variable BUILDLINK_TREE. Each buildlink3.mk file adds a pair of
enter/exit marker, which can be used to reconstruct the tree and
to determine first level includes. Avoiding := for large variables
(BUILDLINK_ORDER) speeds up parse time as += has linear complexity.
The include guard reduces system time by avoiding reading files over and
over again. For complex packages this reduces both %user and %sys time to
half of the former time.
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Remember .include "foo.mk" is looked for (first) in the directory that
contains the makefile being processed (like in C), so remove all the
${.PARSEDIR} and ../ sequences that just cause grief.
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and add a new helper target and script, "show-buildlink3", that outputs
a listing of the buildlink3.mk files included as well as the depth at
which they are included.
For example, "make show-buildlink3" in fonts/Xft2 displays:
zlib
fontconfig
iconv
zlib
freetype2
expat
freetype2
Xrender
renderproto
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of the order in which buildlink3.mk files are (recursively) included
by a package Makefile.
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selection, thus allowing "none" to be a correct result on systems where
PAM is currently unavailable.
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in their tests for built-in versions of the PAM implementations. The
MacOS X case now collapses nicely into the linux-pam case. Allow
pam.buildlink3.mk to use solaris-pam as an accepted PAM implementation.
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It includes the correct buildlink3.mk file from either Linux-PAM
(security/PAM) or OpenPAM (security/openpam) and eventually will
support solaris-pam. pam.buildlink3.mk will:
* set PAMBASE to the base directory of the PAM files;
* set PAM_TYPE to the PAM implementation used.
There are two variables that can be used to tweak the selection of
the PAM implementation:
PAM_DEFAULT is a user-settable variable whose value is the default
PAM implementation to use.
PAM_ACCEPTED is a package-settable list of PAM implementations
that may be used by the package.
Modify most packages that include PAM/buildlink3.mk to include
pam.buildlink3.mk instead.
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