OVCCGtk: fix installation of the icons link

Now we don't install other data next to the link, we must make sure the
directory is created.

clients/ovcc-gtk/configure.ac

@@ -15,6 +15,7 @@ ovccgtkdatadir="${datadir}/ovcc-gtk/"
 AC_SUBST([ovccgtkdatadir])
 
 # Checks for programs.
+AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_SED
 AC_PROG_CC

clients/ovcc-gtk/data/Makefile.am

@@ -8,7 +8,10 @@ dist_noinst_DATA =  ovccgtk-application.ui
 # exists in case we aren't installed in a default prefix where icons are
 # already searched for
 install-data-hook:
-	( cd "$(pkgdatadir)" && $(RM) icons && $(LN_S) ../icons icons )
+	( $(INSTALL) -d "$(pkgdatadir)" && \
+	  cd "$(pkgdatadir)" && \
+	  $(RM) icons && \
+	  $(LN_S) ../icons icons )
 
 uninstall-hook:
 	( test ! -d "$(pkgdatadir)" || ( cd "$(pkgdatadir)" && $(RM) icons ) )