--- a/src/Makefile
+++ b/src/Makefile
@@ -4,9 +4,9 @@
 #
 # Change these if you want to install somewhere else.
 
-INSTALL_PLUGINS_DIR	=	/usr/lib/ladspa/
-INSTALL_INCLUDE_DIR	=	/usr/include/
-INSTALL_BINARY_DIR	=	/usr/bin/
+INSTALL_PLUGINS_DIR	=	@TERMUX_PREFIX@/lib/ladspa/
+INSTALL_INCLUDE_DIR	=	@TERMUX_PREFIX@/include/
+INSTALL_BINARY_DIR	=	@TERMUX_PREFIX@/bin/
 
 ###############################################################################
 #
@@ -15,10 +15,11 @@
 
 INCLUDES	=	-I.
 LIBRARIES	=	-ldl -lm -lsndfile
-CFLAGS		=	$(INCLUDES) -Wall -Werror -O2 -fPIC 		\
+COMMON_FLAGS	=	$(INCLUDES) $(CPPFLAGS) -Wall -Werror -fPIC 	\
 			-DDEFAULT_LADSPA_PATH=$(INSTALL_PLUGINS_DIR)
+CFLAGS		+=	$(COMMON_FLAGS)
 BINFLAGS	=	-fPIE -pie
-CXXFLAGS	=	$(CFLAGS)
+CXXFLAGS	+=	$(COMMON_FLAGS)
 PLUGINS		=	../plugins/amp.so				\
 			../plugins/delay.so				\
 			../plugins/filter.so				\
@@ -27,8 +28,8 @@
 PROGRAMS	=	../bin/analyseplugin				\
 			../bin/applyplugin 				\
 			../bin/listplugins
-CC		=	cc
-CPP		=	c++
+CC		?=	cc
+CXX		?=	c++
 
 ###############################################################################
 #
@@ -47,11 +48,11 @@
 		-Wl,--version-script=gcc_exports.map			
 
 ../plugins/%.so:	plugins/%.cpp ladspa.h gcc_exports.map
-	$(CPP) $(CXXFLAGS) -o plugins/$*.o -c plugins/$*.cpp
-	$(CPP)	-o ../plugins/$*.so					\
+	$(CXX) $(CXXFLAGS) -o plugins/$*.o -c plugins/$*.cpp
+	$(CXX)	-o ../plugins/$*.so					\
 		plugins/$*.o						\
 		-shared							\
-		$(CXXFLAGS)						\
+		$(CXXFLAGS) $(LDFLAGS)						\
 		-fvisibility=hidden					\
 		-fvisibility-inlines-hidden				\
 		-s							\
@@ -109,19 +110,19 @@
 	$(CC) $(CFLAGS) $(BINFLAGS)					\
 		-o ../bin/applyplugin					\
 		applyplugin.o load.o default.o				\
-		$(LIBRARIES)
+		$(LDFLAGS) $(LIBRARIES)
 
 ../bin/analyseplugin:	analyseplugin.o load.o default.o
 	$(CC) $(CFLAGS) $(BINFLAGS)					\
 		-o ../bin/analyseplugin 				\
 		analyseplugin.o load.o default.o			\
-		$(LIBRARIES)
+		$(LDFLAGS) $(LIBRARIES)
 
 ../bin/listplugins:	listplugins.o search.o
 	$(CC) $(CFLAGS) $(BINFLAGS)					\
 		-o ../bin/listplugins	 				\
 		listplugins.o search.o					\
-		$(LIBRARIES)
+		$(LDFLAGS) $(LIBRARIES)
 
 ###############################################################################
 #