diff --git a/imlib2.spec.in b/imlib2.spec.in
index ee08815..8dd606f 100644
--- a/imlib2.spec.in
+++ b/imlib2.spec.in
@@ -128,6 +128,9 @@ id3 tag image loader/saver for Imlib2
 %{configure} --prefix=%{_prefix} \
 %ifarch x86_64
        --disable-mmx \
+%endif
+%ifarch i386 i486 i586 i686
+       --enable-mmx \
 %endif
        $RPM_CONFIGURE_OPTS
 %{__make} %{?_smp_mflags} %{?mflags}
diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am
index e179519..81d3bf2 100644
--- a/src/lib/Makefile.am
+++ b/src/lib/Makefile.am
@@ -63,11 +63,6 @@ updates.h \
 ximage.c \
 ximage.h
 
-AS        = $(CC)
-CCAS      = $(CC)
-ASFLAGS   = -I$(top_srcdir) -I$(top_builddir)
-CCASFLAGS = -I$(top_srcdir) -I$(top_builddir)
-
 MMX_SRCS = \
 asm_blend.S \
 asm_blend_cmod.S \