[gparted] Only install fallback icon when required (#695279)

[Curtis Gedak <gedakc src gnome org>]

commit d6baac254677b7863af413a38f382e9a2e0252bd
Author: Mike Fleetwood <mike fleetwood googlemail com>
Date:   Sun Apr 28 10:36:43 2013 +0100

    Only install fallback icon when required (#695279)
    
    Applications are moving away from storing icons in /usr/share/pixmaps,
    instead preferring /usr/share/icons/hicolor/$SIZE/apps, so only install
    the fallback icon when GParted requires it.
    
    Bug #695279 - GParted doesn't compile on RHEL / CentOS 5.9

 configure.ac           |    5 ++++-
 data/icons/Makefile.am |   10 ++++++++--
 2 files changed, 12 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 8f81870..c28f71d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -308,9 +308,12 @@ AC_LINK_IFELSE(
        )],
        [AC_DEFINE([HAVE_SET_DEFAULT_ICON_NAME], 1,
                   [Define to 1 if gtkmm-2.4 provides Gtk::Window::set_default_icon_name() method.])
+        AM_CONDITIONAL([INSTALL_PIXMAPS_DIR], false)
         AC_MSG_RESULT([yes])
        ],
-       [AC_MSG_RESULT([no])]
+       [AM_CONDITIONAL([INSTALL_PIXMAPS_DIR], true)
+        AC_MSG_RESULT([no])
+        ]
 )
 CXXFLAGS="$CXXFLAGS_save"
 AC_LANG_POP([C++])
diff --git a/data/icons/Makefile.am b/data/icons/Makefile.am
index 01f9b89..9572d17 100644
--- a/data/icons/Makefile.am
+++ b/data/icons/Makefile.am
@@ -36,6 +36,12 @@ EXTRA_DIST = \
        $(noinst_DATA)          \
        $(NULL)
 
+# Only install fallback icon to /usr/share/pixmaps if required
+if INSTALL_PIXMAPS_DIR
+INSTALL_PIXMAP   = install-pixmap
+UNINSTALL_PIXMAP = uninstall-pixmap
+endif
+
 ###############################################################################
 
 gtk_update_icon_cache = gtk-update-icon-cache -f -t
@@ -94,6 +100,6 @@ install-pixmap:
 uninstall-pixmap:
        rm -f $(DESTDIR)$(datadir)/pixmaps/gparted.png
 
-install-data-local: install-icons install-pixmap update-icon-cache
+install-data-local: install-icons $(INSTALL_PIXMAP) update-icon-cache
 
-uninstall-local: uninstall-icons uninstall-pixmap update-icon-cache
+uninstall-local: uninstall-icons $(UNINSTALL_PIXMAP) update-icon-cache