diff --git a/configure.ac b/configure.ac
index e33b8c1d..7bcd3fe7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -261,7 +261,7 @@ for try in 1 2; do
     echo "*** trying without -lgmodule"
     glib_modules=
   fi
-  AM_PATH_GLIB_2_0(2.6.0,,, $glib_modules)
+  AM_PATH_GLIB_2_0(2.16.0,,, $glib_modules)
   if test "$GLIB_LIBS"; then
     if test $glib_modules = gmodule; then
       AC_DEFINE(HAVE_GMODULE)
diff --git a/docs/Makefile.am b/docs/Makefile.am
index 5e222564..861a2ca4 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -1,5 +1,3 @@
-docdir = $(datadir)/doc/irssi
-
 man_MANS = \
 	irssi.1
 
diff --git a/src/common.h b/src/common.h
index e9073925..86a079fe 100644
--- a/src/common.h
+++ b/src/common.h
@@ -43,19 +43,6 @@
 #  include <gmodule.h>
 #endif
 
-#if !GLIB_CHECK_VERSION(2,10,0)
-#define g_slice_alloc(size)      g_malloc(size)
-#define g_slice_alloc0(size)     g_malloc0(size)
-#define g_slice_free1(size, mem) g_free(mem)
-#define g_slice_new(type)        g_new(type, 1)
-#define g_slice_new0(type)       g_new0(type, 1)
-#define g_slice_free(type, mem)  g_free(mem)
-#endif
-
-#if !GLIB_CHECK_VERSION(2,16,0)
-#define g_strcmp0(a, b) (!a ? -(a != b) : (!b ? (a != b) : strcmp(a, b)))
-#endif
-
 #if defined (UOFF_T_INT)
 typedef unsigned int uoff_t;
 #elif defined (UOFF_T_LONG)
diff --git a/src/fe-common/core/fe-common-core.c b/src/fe-common/core/fe-common-core.c
index 341902df..a15850e2 100644
--- a/src/fe-common/core/fe-common-core.c
+++ b/src/fe-common/core/fe-common-core.c
@@ -450,18 +450,7 @@ void fe_common_core_finish_init(void)
 	signal_add_first("setup changed", (SIGNAL_FUNC) sig_setup_changed);
 
         /* _after_ windows are created.. */
-#if GLIB_CHECK_VERSION(2,6,0)
 	g_log_set_default_handler((GLogFunc) glog_func, NULL);
-#else
-	g_log_set_handler(G_LOG_DOMAIN,
-			  (GLogLevelFlags) (G_LOG_LEVEL_CRITICAL |
-					    G_LOG_LEVEL_WARNING),
-			  (GLogFunc) glog_func, NULL);
-	g_log_set_handler("GLib",
-			  (GLogLevelFlags) (G_LOG_LEVEL_CRITICAL |
-					    G_LOG_LEVEL_WARNING),
-			  (GLogFunc) glog_func, NULL); /* send glib errors to the same place */
-#endif
 
 	if (setup_changed)
                 signal_emit("setup changed", 0);