[latexila/wip/build-system-update: 3/3] build: use AX_REQUIRE_DEFINED

[Sébastien Wilmet <swilmet src gnome org>]

commit 93b5c71a07ee954df5671381a67d73f0d47ff14c
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Dec 18 13:11:36 2016 +0100

    build: use AX_REQUIRE_DEFINED

 configure.ac |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7ed913c..e805fe7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -129,6 +129,7 @@ CFLAGS="$CFLAGS `pkg-config --cflags ${dependencies}`"
 LIBS="$LIBS `pkg-config --libs ${dependencies}`"
 
 # Native Language Support
+AX_REQUIRE_DEFINED([IT_PROG_INTLTOOL])
 IT_PROG_INTLTOOL([0.50.1])
 
 GETTEXT_PACKAGE=${PACKAGE_TARNAME}
@@ -143,12 +144,25 @@ AC_DEFINE_UNQUOTED([LOCALE_DIR],
                   [locale directory])
 
 # Misc
+AX_REQUIRE_DEFINED([YELP_HELP_INIT])
 YELP_HELP_INIT
+
+AX_REQUIRE_DEFINED([GLIB_GSETTINGS])
 GLIB_GSETTINGS
+
+AX_REQUIRE_DEFINED([GNOME_COMPILE_WARNINGS])
 GNOME_COMPILE_WARNINGS([maximum])
+
+AX_REQUIRE_DEFINED([GOBJECT_INTROSPECTION_CHECK])
 GOBJECT_INTROSPECTION_CHECK([1.30.0])
+
+AX_REQUIRE_DEFINED([VAPIGEN_CHECK])
 VAPIGEN_CHECK
+
+AX_REQUIRE_DEFINED([GTK_DOC_CHECK])
 GTK_DOC_CHECK([1.14], [--flavour no-tmpl])
+
+AX_REQUIRE_DEFINED([GNOME_CODE_COVERAGE])
 GNOME_CODE_COVERAGE
 
 # Generate files