diff --git a/configure.in b/configure.in
index 6f705339..67ab340d 100644
--- a/configure.in
+++ b/configure.in
@@ -386,8 +386,6 @@ else
 fi
 
 
-
-
 dnl
 dnl X
 dnl
@@ -397,6 +395,11 @@ AC_ARG_ENABLE(double_buffer,
 [  --enable-double-buffer  enable if you want to support flicker-free operation [[default=yes]]],
   [dah="$enableval"])
 
+want_xdamage=yes
+AC_ARG_ENABLE(xdamage,
+[  --enable-xdamage        enable if you want Xdamage support [[default=yes]]],
+  [want_xdamage="$enableval"])
+
 want_x11=yes
 AC_ARG_ENABLE(x11,
 [  --enable-x11            enable if you want X11 support [[default=yes]]],
@@ -415,12 +418,18 @@ if test "x$want_x11" = "xyes"; then
 	AC_DEFINE(X11, 1, [Define if you want to use X11])
 	AC_DEFINE(HAVE_X11, 1, [Define if you have X11])
 	AM_CONDITIONAL(BUILD_X11, true)
-	AC_CHECK_LIB(Xdamage, XDamageQueryExtension, [AC_DEFINE([HAVE_XDAMAGE], 1, [Xdamage]) LIBS="$LIBS -lXdamage"], [AC_MSG_ERROR([something went wrong when checking for Xdamage])])
-	if test $dah != "no"; then
+	if test "x$dah" != xno; then
 		AC_DEFINE(DOUBLE_BUFFER, 1, [Define if you want support for the DBE extension])
 		AC_CHECK_LIB(Xext, XdbeQueryExtension, [AC_DEFINE([HAVE_XDBE], 1, [Xdbe]) LIBS="$LIBS -lXext"],
 		     [AC_MSG_ERROR([something went wrong when checking for Xdbe (double buffer extension)])])
 	fi
+
+	if test "x$want_xdamage" = "xyes"; then
+		AC_DEFINE(XDAMAGE, 1, [Define if you want support for the Xdamage extension])
+		AC_CHECK_LIB(Xdamage, XDamageQueryExtension, 
+			     [AC_DEFINE([HAVE_XDAMAGE], 1, [Xdamage]) LIBS="$LIBS -lXdamage"],
+			      [AC_MSG_ERROR([something went wrong when checking for Xdamage])])
+	fi
 else
 	AM_CONDITIONAL(BUILD_X11, false)
 fi
diff --git a/src/conky.c b/src/conky.c
index b6a5b3bf..d8e75ae2 100644
--- a/src/conky.c
+++ b/src/conky.c
@@ -3207,16 +3207,18 @@ static void generate_text_internal(char *p, int p_max_size, struct text_object *
 						obj->a = get_freq(p, p_max_size, "%'.2f", 1000, obj->data.cpu_index); /* pk */
 					}
 				}
+#if defined(__linux__)
 				OBJ(voltage_mv) {
 					if (obj->a) {
-						obj->a = get_voltage(p, p_max_size, "%.0f", 1, obj->data.cpu_index); /* ptarjan */
+						obj->a = get_voltage(p, p_max_size, "%.0f", 1, obj->data.cpu_index);
 					}
 				}
 				OBJ(voltage_v) {
 					if (obj->a) {
-						obj->a = get_voltage(p, p_max_size, "%'.3f", 1000, obj->data.cpu_index); /* ptarjan */
+						obj->a = get_voltage(p, p_max_size, "%'.3f", 1000, obj->data.cpu_index);
 					}
 				}
+#endif /* __linux__ */
 
 				OBJ(freq_dyn) {
 					if (use_spacer) {
@@ -5594,12 +5596,14 @@ static void main_loop()
 #ifdef X11
 	Region region = XCreateRegion();
 	int event_base, error_base;
+#ifdef HAVE_XDAMAGE
 	if (!XDamageQueryExtension (display, &event_base, &error_base)) {
 		ERR("Xdamage extension unavailable");
 	}
 	Damage damage = XDamageCreate(display, window.window, XDamageReportNonEmpty);
 	XserverRegion region2 = XFixesCreateRegionFromWindow(display, window.window, 0);
 	XserverRegion part = XFixesCreateRegionFromWindow(display, window.window, 0);
+#endif /* HAVE_XDAMAGE */
 #endif /* X11 */
 
 	info.looped = 0;
@@ -5813,6 +5817,7 @@ static void main_loop()
 #endif
 
 			default:
+#ifdef HAVE_XDAMAGE
 				if (ev.type == event_base + XDamageNotify) {
 					XDamageNotifyEvent  *dev = (XDamageNotifyEvent *) &ev;
 					XFixesSetRegion(display, part, &dev->area, 1);
@@ -5820,6 +5825,7 @@ static void main_loop()
 					XDamageSubtract(display, damage, region2, None);
 					XFixesSetRegion(display, region2, 0, 0);
 				}
+#endif /* HAVE_XDAMAGE */
 				break;
 			}
 		}
@@ -5895,13 +5901,13 @@ static void main_loop()
 		g_signal_pending=0;
 	
 	}
-#ifdef X11
+#if defined(X11) && defined(HAVE_XDAMAGE)
 	XDamageDestroy(display, damage);
 	XFixesDestroyRegion(display, region2);
 	XFixesDestroyRegion(display, part);
 	XDestroyRegion(region);
 	region = NULL;
-#endif /* X11 */
+#endif /* X11 && HAVE_XDAMAGE */
 }
 
 static void load_config_file(const char *);
diff --git a/src/freebsd.c b/src/freebsd.c
index 761d29d3..305ab755 100644
--- a/src/freebsd.c
+++ b/src/freebsd.c
@@ -495,7 +495,8 @@ get_freq_dynamic(char *p_client_buffer, size_t client_buffer_size,
 #endif
 }
 
-void
+/*void*/
+char
 get_freq(char *p_client_buffer, size_t client_buffer_size,
 		char *p_format, int divisor, unsigned int cpu)
 {
@@ -519,6 +520,7 @@ get_freq(char *p_client_buffer, size_t client_buffer_size,
 		snprintf(p_client_buffer, client_buffer_size, p_format, 0.0f);
 
 	free(freq_sysctl);
+	return 1;
 }
 
 void