It would seem to be significantly faster that way.
faad2: faad2-$(FAAD2_VERSION).tar.gz
$(EXTRACT_GZ)
(cd $@; echo|$(HOSTCC) -iquote . -E - || sed -i 's/-iquote /-I/' libfaad/Makefile.am; sh ./bootstrap)
+ patch -p0 < Patches/faad-arm-fixed.patch
.faad: faad2
(cd $< && $(HOSTCC) ./configure $(HOSTCONF) --disable-shared --prefix=$(PREFIX) CFLAGS="-O3" && sed -i.orig "s/shrext_cmds/shrext/g" libtool && make -C libfaad && make -C libfaad install)
--- /dev/null
+diff -ru faad2-2.7/libfaad/common.h faad2/libfaad/common.h
+--- faad2-2.7/libfaad/common.h 2009-02-05 02:51:03.000000000 +0200
++++ faad2/libfaad/common.h 2009-09-01 20:41:20.000000000 +0300
+@@ -79,6 +79,10 @@
+ #define FIXED_POINT
+ #endif
+
++#ifdef __arm__
++#define FIXED_POINT
++#endif
++
+ #define ERROR_RESILIENCE
+
+
+