[pinpoint] disable deprecated warnings by default

[Lionel Landwerlin <llandwerlin src gnome org>]

commit 865960e2220b0e80f5547fce97e84c13e5a1e6b2
Author: Lionel Landwerlin <llandwerlin gmail com>
Date:   Wed Sep 23 00:42:26 2015 +0100

    disable deprecated warnings by default

 Makefile.am  |    2 +-
 configure.ac |   19 +++++++++++++++++--
 2 files changed, 18 insertions(+), 3 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 723194e..cfa5f99 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,7 +1,7 @@
 SUBDIRS=transitions
 bin_PROGRAMS=pinpoint
 
-AM_CFLAGS = $(DEPS_CFLAGS) $(MAINTAINER_CFLAGS) -D_GNU_SOURCE -DPKGDATADIR=\"$(pkgdatadir)/\" 
-DPINPOINT_SRCDIR=\"$(abs_top_srcdir)\"
+AM_CFLAGS = $(DEPS_CFLAGS) $(DEPRECATED_CFLAGS) $(MAINTAINER_CFLAGS) -D_GNU_SOURCE 
-DPKGDATADIR=\"$(pkgdatadir)/\" -DPINPOINT_SRCDIR=\"$(abs_top_srcdir)\"
 ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
 
 if USE_DAX
diff --git a/configure.ac b/configure.ac
index 3b476c8..b96de65 100644
--- a/configure.ac
+++ b/configure.ac
@@ -32,6 +32,20 @@ PINPOINT_DEPS="clutter-gtk-1.0 >= 1.6 clutter-1.0 >= 1.23.7 gio-2.0 >= 2.26 cair
 AS_COMPILER_FLAGS([MAINTAINER_CFLAGS], [-Wall])
 AC_SUBST(MAINTAINER_CFLAGS)
 
+# Deprecation warnings
+AC_ARG_ENABLE([deprecation-warnings],
+              [AS_HELP_STRING([--enable-deprecation-warning=@<:@no/yes@:>@],
+                              [Whether to compile with deprecation warnings @<:@default=]no[@:>@])],
+              [],
+              [enable_deprecation_warnings=no])
+
+AS_CASE([$enable_deprecation_warnings],
+        [no], [DEPRECATED_CFLAGS="-DCLUTTER_DISABLE_DEPRECATION_WARNINGS"],
+        [yes], [DEPRECATED_CFLAGS=""],
+        [AC_MSG_ERROR([Unknown argument for --enable-deprecation-warnings])]
+)
+AC_SUBST([DEPRECATED_CFLAGS])
+
 # PDF output support
 AC_ARG_ENABLE([pdf],
              [AS_HELP_STRING([--enable-pdf=@<:no/auto/yes:>@],
@@ -128,8 +142,9 @@ echo "Pinpoint"
 
 echo""
 echo " • General"
-echo "       prefix: ${prefix}"
-echo "       cflags: ${MAINTAINER_CFLAGS}"
+echo "       prefix:   ${prefix}"
+echo "       cflags:   ${MAINTAINER_CFLAGS}"
+echo "       warnings: ${enable_deprecation_warnings}"
 
 echo ""
 echo " • Slides' background"