[clutter-gtk] build: Drop internal copy of introspection.m4

[Emmanuele Bassi <ebassi src gnome org>]

commit 1d6f01914658ed002327809ab1339a17052ede3a
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri May 26 13:10:25 2017 +0100

    build: Drop internal copy of introspection.m4
    
    We depend on gobject-introspection at configure time, and have been for
    years. Using the internal copy of introspection.m4 means we don't get
    eventual bug fixes and changes from upstream.

 build/autotools/Makefile.am      |    1 -
 build/autotools/introspection.m4 |   94 --------------------------------------
 configure.ac                     |    2 +-
 3 files changed, 1 insertions(+), 96 deletions(-)
---
diff --git a/build/autotools/Makefile.am b/build/autotools/Makefile.am
index ac9e454..4f0b49e 100644
--- a/build/autotools/Makefile.am
+++ b/build/autotools/Makefile.am
@@ -1,4 +1,3 @@
 EXTRA_DIST = \
-       introspection.m4        \
        as-compiler-flag.m4     \
        Makefile.am.silent
diff --git a/configure.ac b/configure.ac
index 883d2cb..6099aac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -229,7 +229,7 @@ AC_SUBST(CLUTTER_PREFIX)
 
 GTK_DOC_CHECK([1.24], [--flavour=no-tmpl])
 
-GOBJECT_INTROSPECTION_CHECK([0.9.12])
+GOBJECT_INTROSPECTION_CHECK([1.32])
 
 AC_CONFIG_FILES([
         Makefile