Module Name:    src
Committed By:   riastradh
Date:           Thu Oct 31 15:04:11 UTC 2024

Modified Files:
        src/share/mk: bsd.lib.mk

Log Message:
bsd.lib.mk: Let update-symbols know about ro vs rw source trees.

The update-symbols target is a tool for developers to update the
foo.expsym files from the actual list of exported symbols.

But if you have

/home/dev/netbsd/src

as a read-only null-mount of your real read/write source tree

/home/dev/netbsd/src.hg

as I do (in order to detect accidental writes to the srcdir which
should have gone to the objdir), `make update-symbols' doesnt work
because it tries to write to the read-only null mount.

With this change,

make update-symbols NETBSDSRCDIR_RW=/home/dev/netbsd/src.hg

will write instead to the read/write source tree.


To generate a diff of this commit:
cvs rdiff -u -r1.407 -r1.408 src/share/mk/bsd.lib.mk

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/share/mk/bsd.lib.mk
diff -u src/share/mk/bsd.lib.mk:1.407 src/share/mk/bsd.lib.mk:1.408
--- src/share/mk/bsd.lib.mk:1.407	Fri Jun 28 21:58:24 2024
+++ src/share/mk/bsd.lib.mk	Thu Oct 31 15:04:11 2024
@@ -1,4 +1,4 @@
-#	$NetBSD: bsd.lib.mk,v 1.407 2024/06/28 21:58:24 riastradh Exp $
+#	$NetBSD: bsd.lib.mk,v 1.408 2024/10/31 15:04:11 riastradh Exp $
 #	@(#)bsd.lib.mk	8.3 (Berkeley) 4/22/94
 
 .include <bsd.init.mk>
@@ -707,7 +707,7 @@ CLEANFILES+=	${_LIB.so.full}.diffsym
 CLEANFILES+=	${_LIB.so.full}.diffsym.tmp
 update-symbols: .PHONY
 update-symbols: ${_LIB.so.full}.actsym
-	cp ${.ALLSRC} ${.CURDIR}/${LIB_EXPSYM}
+	cp ${.ALLSRC} ${defined(NETBSDSRCDIR_RW):?${.CURDIR:C,^${NETBSDSRCDIR}/,${NETBSDSRCDIR_RW}/,}:${.CURDIR}}/${LIB_EXPSYM}
 .endif
 
 .if !empty(LOBJS)							# {

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