diff -ru chuck-1.3.1.3.back/src/makefile chuck-1.3.1.3/src/makefile
--- chuck-1.3.1.3.back/src/makefile	2012-10-07 15:55:19.000000000 +0200
+++ chuck-1.3.1.3/src/makefile	2012-10-07 15:57:54.000000000 +0200
@@ -34,8 +34,6 @@
 
 ifneq ($(CHUCK_DEBUG),)
 CFLAGS+= -g
-else
-CFLAGS+= -O3
 endif
 
 ifneq ($(USE_64_BIT_SAMPLE),)
diff -ru chuck-1.3.1.3.back/src/makefile.alsa chuck-1.3.1.3/src/makefile.alsa
--- chuck-1.3.1.3.back/src/makefile.alsa	2012-10-07 15:55:19.000000000 +0200
+++ chuck-1.3.1.3/src/makefile.alsa	2012-10-07 15:57:20.000000000 +0200
@@ -1,4 +1,4 @@
 
-CFLAGS+= -D__LINUX_ALSA__ -O3 -fno-strict-aliasing -D__CK_SNDFILE_NATIVE__
+CFLAGS+= -D__LINUX_ALSA__ -fno-strict-aliasing -D__CK_SNDFILE_NATIVE__
 LDFLAGS+= -lasound -lstdc++ -ldl -lm -lsndfile -lpthread
 
diff -ru chuck-1.3.1.3.back/src/makefile.jack chuck-1.3.1.3/src/makefile.jack
--- chuck-1.3.1.3.back/src/makefile.jack	2012-10-07 15:55:19.000000000 +0200
+++ chuck-1.3.1.3/src/makefile.jack	2012-10-07 15:57:34.000000000 +0200
@@ -1,4 +1,4 @@
 
-CFLAGS+= -D__UNIX_JACK__ -D__LINUX_JACK__ -O3 -fno-strict-aliasing -D__CK_SNDFILE_NATIVE__
+CFLAGS+= -D__UNIX_JACK__ -D__LINUX_JACK__ -fno-strict-aliasing -D__CK_SNDFILE_NATIVE__
 LDFLAGS+= -lasound -ljack -lstdc++ -ldl -lm -lsndfile -lpthread
 
diff -ru chuck-1.3.1.3.back/src/makefile.oss chuck-1.3.1.3/src/makefile.oss
--- chuck-1.3.1.3.back/src/makefile.oss	2012-10-07 15:55:19.000000000 +0200
+++ chuck-1.3.1.3/src/makefile.oss	2012-10-07 15:57:16.000000000 +0200
@@ -1,4 +1,4 @@
 
-CFLAGS+= -D__LINUX_OSS__ -O3 -fno-strict-aliasing -D__CK_SNDFILE_NATIVE__
+CFLAGS+= -D__LINUX_OSS__ -fno-strict-aliasing -D__CK_SNDFILE_NATIVE__
 LDFLAGS+= -lpthread -lstdc++ -ldl -lm -lsndfile