Minor README tweaks

diff --git a/README b/README
index 95c3587fc025946a9fc449e63b0f23933b48cbbc..974909ce392f49603b4ee904b030abe512c30dd2 100644 (file)
--- a/README
+++ b/README
@@ -69,7 +69,10 @@ named-checkconf -px.
 
 If the bug you are reporting is a potential security issue, such as an
 assertion failure or other crash in named, please do NOT use GitLab to
-report it. Instead, please send mail to security-officer@isc.org.
+report it. Instead, send mail to security-officer@isc.org using our
+OpenPGP key to secure your message. (Information about OpenPGP and links
+to our key can be found at https://www.isc.org/pgpkey.) Please do not
+discuss the bug on any public mailing list.
 
 For a general overview of ISC security policies, read the Knowledge Base
 article at https://kb.isc.org/docs/aa-00861.
@@ -148,7 +151,7 @@ If you're planning on making changes to the BIND 9 source, you should run
 make depend. If you're using Emacs, you might find make tags helpful.
 
 Several environment variables that can be set before running configure
-will affect compilation:
+will affect compilation. Significant ones are:
 
    Variable                            Description
 CC             The C compiler to use. configure tries to figure out the
@@ -170,11 +173,17 @@ BUILD_CPPFLAGS CPPFLAGS for the target system during cross-compiling.
 BUILD_LDFLAGS  LDFLAGS for the target system during cross-compiling.
 BUILD_LIBS     LIBS for the target system during cross-compiling.
 
+Additional environment variables affecting the build are listed at the end
+of the configure help text, which can be obtained by running the command:
+
+$ ./configure --help
+
 macOS
 
 Building on macOS assumes that the "Command Tools for Xcode" is installed.
-This can be downloaded from https://developer.apple.com/download/more/ or
-if you have Xcode already installed you can run xcode-select --install.
+This can be downloaded from https://developer.apple.com/download/more/ or,
+if you have Xcode already installed, you can run xcode-select --install.
+(Note that an Apple ID may be required to access the download page.)
 
 Dependencies
 

diff --git a/README.md b/README.md
index ddd60f8ce9151cce2143c55335266dfc8ecf5e32..5cc717d155fb9d198d0c3760bcb6e94b43ede76a 100644 (file)
--- a/README.md
+++ b/README.md
@@ -79,8 +79,12 @@ using `named-checkconf -px`.
 
 If the bug you are reporting is a potential security issue, such as an
 assertion failure or other crash in `named`, please do *NOT* use GitLab to
-report it. Instead, please send mail to
-[security-officer@isc.org](mailto:security-officer@isc.org).
+report it. Instead, send mail to
+[security-officer@isc.org](mailto:security-officer@isc.org) using our
+OpenPGP key to secure your message. (Information about OpenPGP and links
+to our key can be found at
+[https://www.isc.org/pgpkey](https://www.isc.org/pgpkey).) Please do not
+discuss the bug on any public mailing list.
 
 For a general overview of ISC security policies, read the Knowledge Base
 article at [https://kb.isc.org/docs/aa-00861](https://kb.isc.org/docs/aa-00861).
@@ -166,7 +170,7 @@ If you're planning on making changes to the BIND 9 source, you should run
 `make depend`.  If you're using Emacs, you might find `make tags` helpful.
 
 Several environment variables that can be set before running `configure` will
-affect compilation:
+affect compilation.  Significant ones are:
 
 |Variable|Description |
 |--------------------|-----------------------------------------------|
@@ -181,11 +185,20 @@ affect compilation:
 |`BUILD_LDFLAGS`|`LDFLAGS` for the target system during cross-compiling.|
 |`BUILD_LIBS`|`LIBS` for the target system during cross-compiling.|
 
+Additional environment variables affecting the build are listed at the
+end of the `configure` help text, which can be obtained by running the
+command:
+
+    $ ./configure --help
+
 #### <a name="macos"> macOS
 
 Building on macOS assumes that the "Command Tools for Xcode" is installed.
-This can be downloaded from [https://developer.apple.com/download/more/](https://developer.apple.com/download/more/)
-or if you have Xcode already installed you can run `xcode-select --install`.
+This can be downloaded from
+[https://developer.apple.com/download/more/](https://developer.apple.com/download/more/)
+or, if you have Xcode already installed, you can run `xcode-select
+--install`.  (Note that an Apple ID may be required to access the download
+page.)
 
 ### <a name="dependencies"/> Dependencies