This code is broken with the newer libtool. Just dropping it is more or less
safe as in any case if libtool does not supports shared libraries it'll issue
an error...

Adding include is necessary for gcc-4.3.

--- a/configure.in	2008-07-16 09:18:35 +0000
+++ b/configure.in	2008-07-16 09:18:43 +0000
@@ -61,6 +61,7 @@
   AC_TRY_RUN([
 #include <glib.h>
 #include <gmodule.h>
+#include <stdlib.h>
 main ()
 {
     if (g_module_supported ())
@@ -74,21 +74,6 @@
   CFLAGS="$oCFLAGS"
 fi
 
-dnl Now we check to see if our libtool supports shared lib deps
-dnl (in a rather ugly way even)
-builddir=`pwd`
-if $dynworks; then
-   imlib_libtool_config="$builddir/libtool --config"
-   imlib_deplibs_check=`$imlib_libtool_config | \
-      grep '^[[a-z_]]*check[[a-z_]]*_method=[['\''"]]' | \
-      sed 's/.*[['\''"]]\(.*\)[['\''"]]$/\1/'`
-   if test "x$imlib_deplibs_check" = "xnone" || \
-      test "x$imlib_deplibs_check" = "xunknown" || \
-      test "x$imlib_deplibs_check" = "x"; then
-      dynworks=false
-   fi
-fi
-
 if $dynworks; then
    AC_DEFINE(USE_GMODULE, 1, [ ])
    GMODULE_LIBS="`glib-config --libs gmodule`"