[gnome-applets] build: add AX_CHECK_ENABLE_DEBUG

[Alberts Muktupāvels <muktupavels src gnome org>]

commit b16be0aa5357856bc7423f86ee3c8d8eb0e3f0ab
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Sep 27 16:38:46 2015 +0300

    build: add AX_CHECK_ENABLE_DEBUG

 configure.ac |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index e180287..f317e2c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,6 +29,12 @@ dnl **************************************************************************
 AX_IS_RELEASE([git-directory])
 
 dnl **************************************************************************
+dnl Enable debug
+dnl **************************************************************************
+
+AX_CHECK_ENABLE_DEBUG([yes])
+
+dnl **************************************************************************
 dnl Initialize automake
 dnl **************************************************************************