diff --git a/config/config.mk b/config/config.mk
index 3970458d7647..48993b97269f 100644
--- a/config/config.mk
+++ b/config/config.mk
@@ -635,11 +635,6 @@ MOZ_COMPONENT_XPCOM_LIBS += -lboehm
 XPCOM_LIBS += -lboehm
 endif
 
-ifdef MOZ_DEMANGLE_SYMBOLS
-MOZ_COMPONENT_XPCOM_LIBS += -liberty
-XPCOM_LIBS += -liberty
-endif
-
 ifeq (xpconnect, $(findstring xpconnect, $(BUILD_MODULES)))
 DEFINES +=  -DXPCONNECT_STANDALONE
 endif
diff --git a/xpcom/build/Makefile.in b/xpcom/build/Makefile.in
index 5101ec9e53c7..ee87f70bdcb3 100644
--- a/xpcom/build/Makefile.in
+++ b/xpcom/build/Makefile.in
@@ -101,10 +101,6 @@ SDK_HEADERS =  \
 
 SDK_BINARY = $(IMPORT_LIBRARY) $(SHARED_LIBRARY)
 
-ifdef MOZ_DEMANGLE_SYMBOLS
-EXTRA_DSO_LDOPTS += -liberty
-endif
-
 # pull in MoreFiles for MacOSX
 ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 EXTRA_DSO_LIBS = macmorefiles_s
diff --git a/xpfe/bootstrap/Makefile.in b/xpfe/bootstrap/Makefile.in
index 902a4702ade2..1f1b9384f33d 100644
--- a/xpfe/bootstrap/Makefile.in
+++ b/xpfe/bootstrap/Makefile.in
@@ -178,10 +178,6 @@ ifdef GC_LEAK_DETECTOR
 LIBS += -lboehm
 endif
 
-ifdef MOZ_DEMANGLE_SYMBOLS
-LIBS += -liberty
-endif
-
 ifeq ($(MOZ_WIDGET_TOOLKIT),beos)
 BEOS_PROGRAM_RESOURCE = $(srcdir)/apprunner-beos.rsrc
 CPPSRCS += nsNativeAppSupportBeOS.cpp