diff --git a/configure.py b/configure.py
index a7d06e7f..042bbe88 100644
--- a/configure.py
+++ b/configure.py
@@ -271,7 +271,7 @@ def DolphinLib(lib_name, objects):
         "objects": objects,
     }
 
-def MusyX(objects, mw_version="GC/2.6", debug=False, major=2, minor=0, patch=0):
+def MusyX(objects, mw_version="GC/1.3.2", debug=False, major=1, minor=5, patch=4):
     cflags = cflags_musyx if not debug else cflags_musyx_debug
     return {
         "lib": "musyx",
@@ -665,34 +665,34 @@ config.libs = [
     MusyX(
         objects={
             Object(Matching, "musyx/runtime/seq.c"),
-            Object(NonMatching, "musyx/runtime/synth.c"),
+            Object(Matching, "musyx/runtime/synth.c"),
             Object(Matching, "musyx/runtime/seq_api.c"),
             Object(Matching, "musyx/runtime/snd_synthapi.c"),
             Object(NonMatching, "musyx/runtime/stream.c"),
             Object(Matching, "musyx/runtime/synthdata.c"),
             Object(NonMatching, "musyx/runtime/synthmacros.c"),
-            Object(NonMatching, "musyx/runtime/synthvoice.c"),
+            Object(Matching, "musyx/runtime/synthvoice.c"),
             Object(Matching, "musyx/runtime/synth_ac.c"),
             Object(Matching, "musyx/runtime/synth_dbtab.c"),
-            Object(NonMatching, "musyx/runtime/synth_adsr.c"),
+            Object(Matching, "musyx/runtime/synth_adsr.c"),
             Object(NonMatching, "musyx/runtime/synth_vsamples.c"),
-            Object(NonMatching, "musyx/runtime/s_data.c"),
+            Object(Matching, "musyx/runtime/s_data.c"),
             Object(NonMatching, "musyx/runtime/hw_dspctrl.c"),
             Object(Matching, "musyx/runtime/hw_volconv.c"),
             Object(Matching, "musyx/runtime/snd3d.c"),
             Object(Matching, "musyx/runtime/snd_init.c"),
-            Object(NonMatching, "musyx/runtime/snd_math.c"),
+            Object(Matching, "musyx/runtime/snd_math.c"),
             Object(NonMatching, "musyx/runtime/snd_midictrl.c"),
-            Object(NonMatching, "musyx/runtime/snd_service.c"),
+            Object(Matching, "musyx/runtime/snd_service.c"),
             Object(Matching, "musyx/runtime/hardware.c"),
             Object(Matching, "musyx/runtime/dsp_import.c"),
             Object(Matching, "musyx/runtime/hw_aramdma.c"),
             Object(Matching, "musyx/runtime/hw_dolphin.c"),
             Object(Matching, "musyx/runtime/hw_memory.c"),
             Object(Matching, "musyx/runtime/CheapReverb/creverb_fx.c"),
-            Object(NonMatching, "musyx/runtime/CheapReverb/creverb.c"),
+            Object(Matching, "musyx/runtime/CheapReverb/creverb.c"),
             Object(Matching, "musyx/runtime/StdReverb/reverb_fx.c"),
-            Object(NonMatching, "musyx/runtime/StdReverb/reverb.c"),
+            Object(Matching, "musyx/runtime/StdReverb/reverb.c"),
             Object(Matching, "musyx/runtime/Delay/delay_fx.c"),
             Object(Matching, "musyx/runtime/Chorus/chorus_fx.c"),
         }
diff --git a/include/math.h b/include/math.h
index db5ce270..3a508d50 100644
--- a/include/math.h
+++ b/include/math.h
@@ -36,6 +36,7 @@ double asin(double x);
 double atan2(double y, double x);
 double fmod(double x, double y);
 double log(double x);
+double pow(double x, double y);
 float tanf(float x);
 float sinf(float x);
 float cosf(float x);
diff --git a/tools/project.py b/tools/project.py
index 0cc9e4c0..0f5ad89b 100644
--- a/tools/project.py
+++ b/tools/project.py
@@ -886,7 +886,9 @@ def generate_objdiff_config(config, build_config):
             return
 
         lib, obj = result
-        unit_src_path = config.src_dir / obj.options["source"]
+        src_dir = Path(lib.get("src_dir", config.src_dir))
+
+        unit_src_path = src_dir / obj.options["source"]
         if not unit_src_path.exists():
             objdiff_config["units"].append(unit_config)
             return