[Buildroot] [PATCH v2] package/chrony: add option for debug logging

[Robert Hancock <hancock@sedsystems.ca>]

Add a BR2_PACKAGE_CHRONY_DEBUG_LOGGING config option to allow enabling
compiled-in support for debug logging in Chrony. Enable by default as
this makes it much easier to debug Chrony issues and should only be
disabled by those very sensitive to binary size.

Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
---
 package/chrony/Config.in | 10 ++++++++++
 package/chrony/chrony.mk |  3 ++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/package/chrony/Config.in b/package/chrony/Config.in
index 05d6fc1..7d401627 100644
--- a/package/chrony/Config.in
+++ b/package/chrony/Config.in
@@ -6,3 +6,13 @@ config BR2_PACKAGE_CHRONY
 	  accuracy of the system clock.
 
 	  http://chrony.tuxfamily.org/
+
+config BR2_PACKAGE_CHRONY_DEBUG_LOGGING
+	bool "enable debug logging support"
+	default y
+	depends on BR2_PACKAGE_CHRONY
+	help
+	  Enable support for debug logging output from Chrony when enabled at
+	  runtime. If disabled, code for debug logging will not be compiled in.
+	  Enabling this option increases the installed Chrony binary size by
+	  approximately 15%.
diff --git a/package/chrony/chrony.mk b/package/chrony/chrony.mk
index b5821b2..2d03fce 100644
--- a/package/chrony/chrony.mk
+++ b/package/chrony/chrony.mk
@@ -13,7 +13,8 @@ CHRONY_CONF_OPTS = \
 	--host-system=Linux \
 	--host-machine=$(BR2_ARCH) \
 	--prefix=/usr \
-	--without-tomcrypt
+	--without-tomcrypt \
+	$(if $(BR2_PACKAGE_CHRONY_DEBUG_LOGGING),--enable-debug,--disable-debug)
 
 ifeq ($(BR2_PACKAGE_LIBCAP),y)
 CHRONY_DEPENDENCIES += libcap
-- 
1.8.3.1