add mate-language apis

configure.ac

@@ -187,7 +187,10 @@ AC_SUBST(RANDR_PACKAGE)
 
 dnl pkg-config dependency checks
 
-PKG_CHECK_MODULES(MATE_DESKTOP, gdk-pixbuf-2.0 gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED gio-2.0 >= $GIO_REQUIRED $STARTUP_NOTIFICATION_PACKAGE $RANDR_PACKAGE)
+PKG_CHECK_MODULES(MATE_DESKTOP, gdk-pixbuf-2.0 gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED gio-2.0 >= $GIO_REQUIRED $STARTUP_NOTIFICATION_PACKAGE $RANDR_PACKAGE iso-codes)
+
+ISO_CODES_PREFIX=$($PKG_CONFIG --variable prefix iso-codes)
+AC_SUBST(ISO_CODES_PREFIX)
 
 PKG_CHECK_MODULES(MATE_ABOUT, gtk+-3.0 >= $GTK_REQUIRED)
 AC_SUBST(MATE_ABOUT_CFLAGS)

docs/reference/mate-desktop/mate-desktop-docs.sgml

@@ -36,6 +36,11 @@ The libmate-desktop library contains APIs that can be useful for a few applicati
     <xi:include href="xml/mate-desktop-thumbnail.xml"/>
   </part>
 
+  <part id="languages">
+    <title>Language Utilities</title>
+    <xi:include href="xml/mate-languages.xml"/>
+  </part>
+
   <part id="libmate">
     <title>Miscellaneous</title>
     <xi:include href="xml/mate-desktop-item.xml"/>

docs/reference/mate-desktop/mate-desktop-sections.txt

@@ -268,6 +268,19 @@ MATE_DESKTOP_IS_THUMBNAIL_FACTORY_CLASS
 MateDesktopThumbnailFactoryClass
 </SECTION>
 
+<SECTION>
+<FILE>mate-languages</FILE>
+<TITLE>Language Utilities</TITLE>
+mate_get_all_locales
+mate_get_country_from_code
+mate_get_country_from_locale
+mate_get_language_from_code
+mate_get_language_from_locale
+mate_normalize_locale
+mate_parse_locale
+mate_language_has_translations
+</SECTION>
+
 <SECTION>
 <INCLUDE>mate-desktop-utils.h</INCLUDE>
 <FILE>mate-desktop-utils</FILE>

libmate-desktop/Makefile.am

@@ -9,6 +9,7 @@ libmate_desktop_HEADERS = \
 	mate-bg-crossfade.h		\
 	mate-desktop-thumbnail.h	\
 	mate-rr.h			\
+	mate-languages.h		\
 	mate-rr-config.h		\
 	mate-rr-labeler.h \
 	mate-colorbutton.h \
@@ -24,6 +25,7 @@ AM_CPPFLAGS =							\
 	-DG_LOG_DOMAIN=\"MateDesktop\"				\
 	-DMATELOCALEDIR=\""$(prefix)/$(DATADIRNAME)/locale\""	\
 	-DPNP_IDS=\""$(PNP_IDS)"\"				\
+	-DISO_CODES_PREFIX=\""$(ISO_CODES_PREFIX)"\"		\
 	$(DISABLE_DEPRECATED_CFLAGS)
 
 AM_CFLAGS = $(WARN_CFLAGS)
@@ -42,6 +44,7 @@ introspection_sources = \
 	mate-bg-crossfade.c	\
 	display-name.c		\
 	mate-rr.c		\
+	mate-languages.c	\
 	mate-rr-config.c	\
 	mate-rr-output-info.c	\
 	mate-rr-labeler.c	\