LUALIB = ../liblua/liblua.a
 LDFLAGS = $(COMMON_FLAGS)
 CFLAGS = -std=c99 -D_ISOC99_SOURCE -I. -I../include -I../common -I../zlib -I/opt/local/include -I../liblua -Wall $(COMMON_FLAGS) -g -O3
-CXXFLAGS = -Wall -O3
+CXXFLAGS = -I../include -Wall -O3
 
 LUAPLATFORM = generic
 platform = $(shell uname)
                        reveng/poly.c\
                        reveng/getopt.c\
 
-MULTIARCHSRCS = hardnested/hardnested_bf_core.c hardnested/hardnested_bitarray_core.c
+cpu_arch = $(shell uname -m)
+ifneq ($(findstring 86, $(cpu_arch)), )
+       MULTIARCHSRCS = hardnested/hardnested_bf_core.c hardnested/hardnested_bitarray_core.c
+endif
+ifneq ($(findstring 64, $(cpu_arch)), )
+       MULTIARCHSRCS = hardnested/hardnested_bf_core.c hardnested/hardnested_bitarray_core.c
+endif
+ifeq ($(MULTIARCHSRCS), )
+       CMDSRCS += hardnested/hardnested_bf_core.c hardnested/hardnested_bitarray_core.c
+endif
 
 ZLIBSRCS = deflate.c adler32.c trees.c zutil.c inflate.c inffast.c inftrees.c
 ZLIBFLAGS = -DZ_SOLO -DZ_PREFIX -DNO_GZIP -DZLIB_PM3_TUNED