diff --git a/Makefile b/Makefile
index 186e245..9127f23 100644
--- a/Makefile
+++ b/Makefile
@@ -58,7 +58,7 @@ plugin_dir = $(HOME)/.trace-cmd/plugins
 python_dir = $(HOME)/.trace-cmd/python
 else
 plugin_dir = $(prefix)/$(libdir)/trace-cmd/plugins
-python_dir = $(prefix)/$(libdir)/trace-cmd/python
+python_dir ?= $(prefix)/$(libdir)/trace-cmd/python
 PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
 PYTHON_DIR = -DPYTHON_DIR="$(python_dir)"
 PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
@@ -98,8 +98,11 @@ endif # NO_PYTHON
 test-build = $(if $(shell sh -c 'echo "$(1)" | \
 	$(CC) -o /dev/null -c -x c - > /dev/null 2>&1 && echo y'), $2)
 
+ifndef NO_UDIS86
 # have udis86 disassembler library?
-udis86-flags := $(call test-build,\#include <udis86.h>,-DHAVE_UDIS86 -ludis86)
+udis86-flags := -DHAVE_UDIS86
+udis86-ldflags := -ludis86
+endif # NO_UDIS86
 
 define BLK_TC_FLUSH_SOURCE
 #include <linux/blktrace_api.h>
@@ -242,6 +245,7 @@ endif
 # Append required CFLAGS
 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 override CFLAGS += $(udis86-flags) $(blk-flags)
+override LDFLAGS += $(udis86-ldflags)
 
 ifeq ($(VERBOSE),1)
   Q =