--- a/libbb/Makefile.am
+++ b/libbb/Makefile.am
@@ -1,6 +1,6 @@
 HOST_CPU=@host_cpu@
 BUILD_CPU=@build_cpu@
-ALL_CFLAGS=-g -O -Wall -DHOST_CPU_STR=\"@host_cpu@\" -DBUILD_CPU=@build_cpu@
+ALL_CFLAGS=-g -O -Wall -DHOST_CPU_STR=\"$(HOST_CPU)\" -DBUILD_CPU=@build_cpu@
 
 noinst_LTLIBRARIES = libbb.la
 
--- a/libopkg/Makefile.am
+++ b/libopkg/Makefile.am
@@ -1,5 +1,5 @@
-
-AM_CFLAGS=-Wall -DHOST_CPU_STR=\"@host_cpu@\" -DBUILD_CPU=@build_cpu@ -DLIBDIR=\"@libdir@\" -DOPKGLIBDIR=\"@opkglibdir@\" -DOPKGETCDIR=\"@opkgetcdir@\" -DOPKGLOCKFILE=\"@opkglockfile@\" -DDATADIR=\"@datadir@\" -I$(top_srcdir) $(BIGENDIAN_CFLAGS) $(CURL_CFLAGS) $(GPGME_CFLAGS) $(PATHFINDER_CFLAGS)
+HOST_CPU=@host_cpu@
+AM_CFLAGS=-Wall -DHOST_CPU_STR=\"$(HOST_CPU)\" -DBUILD_CPU=@build_cpu@ -DLIBDIR=\"@libdir@\" -DOPKGLIBDIR=\"@opkglibdir@\" -DOPKGETCDIR=\"@opkgetcdir@\" -DOPKGLOCKFILE=\"@opkglockfile@\" -DDATADIR=\"@datadir@\" -I$(top_srcdir) $(BIGENDIAN_CFLAGS) $(CURL_CFLAGS) $(GPGME_CFLAGS) $(PATHFINDER_CFLAGS)
 
 libopkg_includedir=$(includedir)/libopkg
 libopkg_include_HEADERS= *.h
