[src/trunk]: src/share/mk add what {PROG,LIB}DPLIBS are useful for

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/0188abb85c30
branches:  trunk
changeset: 993539:0188abb85c30
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Sep 16 13:14:12 2018 +0000

description:
add what {PROG,LIB}DPLIBS are useful for

diffstat:

 share/mk/bsd.README |  6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diffs (20 lines):

diff -r b6203a9919b4 -r 0188abb85c30 share/mk/bsd.README
--- a/share/mk/bsd.README       Sun Sep 16 13:11:48 2018 +0000
+++ b/share/mk/bsd.README       Sun Sep 16 13:14:12 2018 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: bsd.README,v 1.383 2018/09/16 13:11:48 christos Exp $
+#      $NetBSD: bsd.README,v 1.384 2018/09/16 13:14:12 christos Exp $
 #      @(#)bsd.README  8.2 (Berkeley) 4/2/94
 
 This is the README file for the make "include" files for the NetBSD
@@ -1330,6 +1330,10 @@
 PROGDPLIBS     A list of the tuples:
                        libname  path-to-srcdir-of-libname
 
+               Instead of depending on installed versions of the libraries,
+               one can depend on their built version in the source directory.
+               This is useful for finding private libraries (LIBISPRIVATE).
+
                For each tuple;
                     *  LIBDO.libname contains the .OBJDIR of the library
                        `libname', and if it is not set it is determined