[gnome-control-center/T20771: 4/44] Disable deprecation warnings

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 32db96c42831549938cc2bea687dd6f193e7b127
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Tue Jun 6 16:08:32 2017 -0500

    Disable deprecation warnings
    
    These are upstream problems, and we need to be able to see real warnings.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 70b5abf..63a6581 100644
--- a/configure.ac
+++ b/configure.ac
@@ -415,7 +415,7 @@ if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
         -Wuninitialized \
         -Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes \
         -Wnested-externs -Wpointer-arith \
-        -Wcast-align -Wsign-compare \
+        -Wcast-align -Wsign-compare -Wno-deprecated-declarations \
         $CFLAGS"
 
        # Only add this when optimizing is enabled (default)