vlang: provide more detailed instructions

[Roland Illig <rillig%NetBSD.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Roland Illig <rillig%NetBSD.org@localhost>
Pushed By:	rillig
Date:		Sun Jun 19 06:55:46 2022 +0000
Changeset:	ab8640169fc4f9266db712d2b04bd3f5074b3d00

Modified Files:
	vlang/Makefile

Log Message:
vlang: provide more detailed instructions

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=ab8640169fc4f9266db712d2b04bd3f5074b3d00

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

diffstat:
 vlang/Makefile | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diffs:
diff --git a/vlang/Makefile b/vlang/Makefile
index 4f11515033..39d4dfb16c 100644
--- a/vlang/Makefile
+++ b/vlang/Makefile
@@ -18,7 +18,11 @@ MAKE_FILE=	GNUmakefile
 MAKE_FLAGS+=	local=1
 
 # vc is the bootstrap compiler and needs updates along with vlang.
-# vc has the corresponding v commit id in its commit msg.
+# Search https://github.com/vlang/v/releases for the commit ID that
+# corresponds to the release.
+# Then search in https://github.com/vlang/vc/commits/master for the
+# commit that mentions the abbreviated above commit in its commit
+# message.
 GITHUB_SUBMODULES+=	vlang vc     a298ad7069f6333ef8ab59a616654fc74e04c847 vc
 # tccbin is the dummy branch thirdparty-unknown-unknown and needs no updates.
 GITHUB_SUBMODULES+=	vlang tccbin de82a130c282c03eac3ccd442b995a5174e865ec thirdparty/tcc