adds imlib2-support to fluxbox: allows us to load several imageformats

besides xpm. to get imlib2 support in fluxbox one has to 
 
  ./configure --enable-imblib2

default is disabled.  a fluxbox-binary that supports imlib2 will have 
IMLIB2 in "fluxbox -info"-output

explanation to the changed files:

 * xft.m4 -> acinclude.m4 + added ac_path_generic.m4 
   (from http://ac-archive.sourceforge.net/Miscellaneous/ac_path_generic.html)

 * configure.in, Makefile.am, src/FbTk/Makefile.am changed to handle
   imlib2-support

 * Font.cc/hh Image.cc/hh App.cc fluxbox.cc consistent way of init for global
   stuff for fonts and imagehandlers.

 * rest of changes just add the imlib2-code, pretty straightforward

1 files changed, 5 insertions, 0 deletions

diff --git a/src/main.cc b/src/main.cc
index c91fb3f..b7fffc3 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -106,6 +106,11 @@ void showInfo(ostream &ostr) {
 #endif // HAVE_XPM
         "XPM"<<endl<<
 
+#ifndef HAVE_IMLIB2
+        NOT<<
+#endif // HAVE_IMLIB2
+        "IMLIB2"<<endl<<
+
 #ifndef USE_GNOME
         NOT<<
 #endif // USE_GNOME