Update gtk icon cache on install

Makefile.am

@@ -103,10 +103,21 @@ desktopdir = $(datadir)/applications
 desktop_DATA = medit.desktop
 appicondir = $(datadir)/pixmaps
 appicon_DATA = moo/mooutils/pixmaps/medit.png
-iconthemedir = $(datadir)/icons/hicolor/48x48/apps
+hicolor = $(datadir)/icons/hicolor
+iconthemedir = $(hicolor)/48x48/apps
 icontheme_DATA = moo/mooutils/pixmaps/medit.png
 EXTRA_DIST += $(desktop_DATA)
 
+update_icon_cache = gtk-update-icon-cache -f -t $(hicolor)
+
+install-data-hook:
+	if echo "Updating icon cache" && $(update_icon_cache); then		\
+		echo "Done.";							\
+	else									\
+		echo "*** GTK icon cache not updated. After install, run this:";\
+		echo $(update_icon_cache);					\
+	fi
+
 ##############################################################################
 # tests
 #

moo.kdevelop

@@ -27,7 +27,7 @@
     </ignoreparts>
     <projectdirectory>.</projectdirectory>
     <absoluteprojectpath>false</absoluteprojectpath>
-    <description></description>
+    <description/>
     <secondaryLanguages>
       <language>C</language>
     </secondaryLanguages>
@@ -55,15 +55,15 @@
         <cxxcompiler>kdevgppoptions</cxxcompiler>
         <f77compiler>kdevg77options</f77compiler>
         <cflags>-O0 -g3</cflags>
-        <topsourcedir></topsourcedir>
-        <cppflags></cppflags>
-        <ccompilerbinary></ccompilerbinary>
-        <cxxcompilerbinary></cxxcompilerbinary>
-        <f77compilerbinary></f77compilerbinary>
-        <f77flags></f77flags>
+        <topsourcedir/>
+        <cppflags/>
+        <ccompilerbinary/>
+        <cxxcompilerbinary/>
+        <f77compilerbinary/>
+        <f77flags/>
         <envvars/>
-        <ldflags></ldflags>
-        <cxxflags></cxxflags>
+        <ldflags/>
+        <cxxflags/>
       </debug>
       <gtk-print>
         <configargs>--enable-debug --enable-all-gcc-warnings --without-python --prefix=/usr/local/gtk-print</configargs>
@@ -222,15 +222,15 @@
   </kdevautoproject>
   <kdevdebugger>
     <general>
-      <dbgshell></dbgshell>
+      <dbgshell/>
       <programargs>--g-fatal-warnings</programargs>
       <breakonloadinglibs>true</breakonloadinglibs>
       <separatetty>false</separatetty>
       <floatingtoolbar>true</floatingtoolbar>
-      <gdbpath></gdbpath>
-      <configGdbScript></configGdbScript>
-      <runShellScript></runShellScript>
-      <runGdbScript></runGdbScript>
+      <gdbpath/>
+      <configGdbScript/>
+      <runShellScript/>
+      <runGdbScript/>
     </general>
     <display>
       <staticmembers>true</staticmembers>
@@ -328,7 +328,7 @@
     </codecompletion>
     <references/>
     <creategettersetter>
-      <prefixGet></prefixGet>
+      <prefixGet/>
       <prefixSet>set</prefixSet>
       <prefixVariable>m_,_</prefixVariable>
       <parameterName>theValue</parameterName>
@@ -338,7 +338,7 @@
     <qt>
       <used>false</used>
       <version>3</version>
-      <root></root>
+      <root/>
     </qt>
   </kdevcppsupport>
   <kdevdocumentation>