chrony: Make it possible to enable editline support again

Support for readline was dropped in Chrony 4.2. However, the
--disable-readline option still remains (it is used to completely ignore
all forms of command line editing, even though the only remaining
variant is editline). So keeping the readline PACKAGECONFIG and making
it pass --disable-readline when it is not enabled disabled support for
editline, and if it was enabled it instead passed --without-editline,
which also disabled support for editline. Thus there was no way to
enable editline support.

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>

1 files changed, 4 insertions, 9 deletions

diff --git a/meta-networking/recipes-support/chrony/chrony_4.3.bb b/meta-networking/recipes-support/chrony/chrony_4.3.bb
index d0e2c4b540..dad09f826c 100644
--- a/meta-networking/recipes-support/chrony/chrony_4.3.bb
+++ b/meta-networking/recipes-support/chrony/chrony_4.3.bb
@@ -53,14 +53,6 @@ USERADD_PACKAGES = "${@bb.utils.contains('PACKAGECONFIG', 'privdrop', '${PN}', '
 USERADD_PARAM:${PN} += "${@bb.utils.contains('PACKAGECONFIG', 'privdrop', '--system -d / -M --shell /bin/nologin chronyd;', '', d)}"
 
 # Configuration options:
-# - For command line editing support in chronyc, you may specify either
-#   'editline' or 'readline' but not both.  editline is smaller, but
-#   many systems already have readline for other purposes so you might want
-#   to choose that instead.  However, beware license incompatibility
-#   since chrony is GPLv2 and readline versions after 6.0 are GPLv3+.
-#   You can of course choose neither, but if you're that tight on space
-#   consider dropping chronyc entirely (you can use it remotely with
-#   appropriate chrony.conf options).
 # - Security-related:
 #   - 'sechash' is omitted by default because it pulls in nss which is huge.
 #   - 'privdrop' allows chronyd to run as non-root; would need changes to
@@ -70,7 +62,6 @@ USERADD_PARAM:${PN} += "${@bb.utils.contains('PACKAGECONFIG', 'privdrop', '--sys
 PACKAGECONFIG ??= "editline \
     ${@bb.utils.filter('DISTRO_FEATURES', 'ipv6', d)} \
 "
-PACKAGECONFIG[readline] = "--without-editline,--disable-readline,readline"
 PACKAGECONFIG[editline] = ",--without-editline,libedit"
 PACKAGECONFIG[sechash] = "--without-tomcrypt,--disable-sechash,nss"
 PACKAGECONFIG[privdrop] = "--with-libcap,--disable-privdrop --without-libcap,libcap"
@@ -79,6 +70,10 @@ PACKAGECONFIG[ipv6] = ",--disable-ipv6,"
 PACKAGECONFIG[nss] = "--with-nss,--without-nss,nss"
 PACKAGECONFIG[libcap] = "--with-libcap,--without-libcap,libcap"
 
+# This is left for backwards compatibility, to avoid breaking existing
+# configurations.
+PACKAGECONFIG[readline] = ""
+
 # --disable-static isn't supported by chrony's configure script.
 DISABLE_STATIC = ""