diff --git a/ChangeLog b/ChangeLog
index d791777..ceb9f16 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2008-01-26  Sebastian Dröge  <slomo@circular-chaos.org>
+
+	* configure.ac:
+	* ext/soundtouch/gstpitch.cc:
+	Add support for libsoundtouch 1.3.1 and add an ugly workaround for
+	the header definined PACKAGE and other variables for which we need
+	our own values from config.h.
+
 2008-01-26  Tim-Philipp Müller  <tim at centricular dot net>
 
 	* configure.ac:
diff --git a/configure.ac b/configure.ac
index 66992b0..f2477ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -885,9 +885,11 @@
 dnl *** soundtouch ***
 translit(dnm, m, l) AM_CONDITIONAL(USE_SOUNDTOUCH, true)
 AG_GST_CHECK_FEATURE(SOUNDTOUCH, [soundtouch plug-in], soundtouch, [
-  PKG_CHECK_MODULES(SOUNDTOUCH, libSoundTouch, HAVE_SOUNDTOUCH=yes, [
-    HAVE_SOUNDTOUCH=no
-     AC_MSG_RESULT(no)])
+  PKG_CHECK_MODULES(SOUNDTOUCH, soundtouch-1.0,
+    HAVE_SOUNDTOUCH=yes, 
+    PKG_CHECK_MODULES(SOUNDTOUCH, libSoundTouch,
+      HAVE_SOUNDTOUCH=yes,
+      HAVE_SOUNDTOUCH=no))
   AC_SUBST(SOUNDTOUCH_CFLAGS)
   AC_SUBST(SOUNDTOUCH_LIBS)
   if test "x$HAVE_CXX" != "xyes"; then
diff --git a/ext/soundtouch/gstpitch.cc b/ext/soundtouch/gstpitch.cc
index ad53f47..38c7d2d 100644
--- a/ext/soundtouch/gstpitch.cc
+++ b/ext/soundtouch/gstpitch.cc
@@ -17,6 +17,18 @@
  *
  */
 
+#define FLOAT_SAMPLES 1
+#include <soundtouch/SoundTouch.h>
+/* FIXME: workaround for SoundTouch.h of version 1.3.1 defining those
+ * variables while it shouldn't. */
+#undef VERSION
+#undef PACKAGE_VERSION
+#undef PACKAGE_TARNAME
+#undef PACKAGE_STRING
+#undef PACKAGE_NAME
+#undef PACKAGE_BUGREPORT
+#undef PACKAGE
+
 #ifdef HAVE_CONFIG_H
 #  include <config.h>
 #endif
@@ -26,9 +38,6 @@
 #include "gstpitch.hh"
 #include <math.h>
 
-#define FLOAT_SAMPLES
-#include <soundtouch/SoundTouch.h>
-
 /* wtf ?
 #ifdef G_PARAM_READWRITE
 #  undef G_PARAM_READWRITE