Validate the .desktop file with desktop-utils where available

configure.ac

@@ -77,6 +77,9 @@ AC_CHECK_TOOL(AR, ar, :)
 AC_CHECK_TOOL(LD, ld, :)
 AC_CHECK_TOOL(DLLTOOL, dlltool, :)
 
+AC_ARG_VAR([DESKTOP_FILE_VALIDATE], [Validator for desktop entry files])
+AC_CHECK_PROGS(DESKTOP_FILE_VALIDATE, [${DESKTOP_FILE_VALIDATE} desktop-file-validate], :)
+
 dnl Check for compiler properties
 AC_C_CONST
 AC_C_INLINE

share/Makefile.am

@@ -10,8 +10,9 @@ EXTRA_DIST += vlc.desktop.in
 CLEANFILES += $(appdata_DATA)
 
 vlc.desktop: vlc.desktop.in $(top_builddir)/config.status
-	$(AM_V_GEN)sed -e 's,\@bindir\@,$(bindir),g' < "$<" > $@.tmp
-	$(AM_V_at)mv -f $@.tmp $@
+	$(AM_V_GEN)sed -e 's,\@bindir\@,$(bindir),g' < "$<" > tmp-$@
+	$(AM_V_at)$(DESKTOP_FILE_VALIDATE) tmp-$@
+	$(AM_V_at)mv -f tmp-$@ $@
 
 iconsdatadir = $(datadir)/icons/hicolor
 icons16dir = $(iconsdatadir)/16x16/apps