diff --git a/WINGs/dragsource.c b/WINGs/dragsource.c
index eea0ef5e..c1ea68aa 100644
--- a/WINGs/dragsource.c
+++ b/WINGs/dragsource.c
@@ -478,7 +478,7 @@ static void registerDescriptionList(WMScreen * scr, WMView * view, WMArray * ope
 
 	/* size of XA_STRING info */
 	for (i = 0; i < count; i++) {
-		size += strlen(WMGetDragOperationItemText(WMGetFromArray(operationArray, i))) + 1;	/* +1 = +NULL */
+		size += strlen(WMGetDragOperationItemText(WMGetFromArray(operationArray, i))) + 1 /* NULL */;
 	}
 
 	/* create text list */
diff --git a/WINGs/wsplitview.c b/WINGs/wsplitview.c
index a26ba12d..7568a373 100644
--- a/WINGs/wsplitview.c
+++ b/WINGs/wsplitview.c
@@ -649,7 +649,8 @@ void WMAddSplitViewSubview(WMSplitView * sPtr, WMView * subview)
 
 	CHECK_CLASS(sPtr, WC_SplitView);
 
-	if (!(p = (W_SplitViewSubview *) wmalloc(sizeof(W_SplitViewSubview))))
+	p = (W_SplitViewSubview *) wmalloc(sizeof(W_SplitViewSubview));
+	if (!p)
 		return;
 
 	wasMapped = subview->flags.mapped;
diff --git a/configure.ac b/configure.ac
index 2faa9a56..918bea76 100644
--- a/configure.ac
+++ b/configure.ac
@@ -213,8 +213,8 @@ dnl Checks for typedefs, structures, and compiler characteristics.
 dnl ==============================================================
 AC_DECL_SYS_SIGLIST
 AC_C_CONST
-#AC_TYPE_SIZE_T
-#AC_TYPE_PID_T
+AC_TYPE_SIZE_T
+AC_TYPE_PID_T
 AC_TYPE_SIGNAL
 
 
@@ -410,7 +410,7 @@ if test "$shape" = yes; then
 fi
 
 dnl XRandR support
-dnl =============
+dnl ==============
 xrandr=no
 AC_ARG_ENABLE(xrandr, AS_HELP_STRING([--enable-xrandr], [enable XRandR window extension support]),
 		xrandr=$enableval, xrandr=no)
@@ -797,7 +797,7 @@ AC_SUBST(wprefs_bindir)
 
 
 dnl Enable User Defined Menu thing
-dnl ==================================
+dnl ==============================
 AC_ARG_ENABLE(usermenu, AS_HELP_STRING([--enable-usermenu], [user defined menus for applications]),
 if test "$enableval" = yes; then
 	AC_DEFINE(USER_MENU, 1, [define if you want user defined menus for applications])