--- a/configure.in	Thu Oct 30 23:56:59 2008 +0000
+++ b/configure.in	Thu Dec 04 09:05:56 2008 +0000
@@ -29,7 +29,7 @@
    AS_HELP_STRING( [--disable-optimized], [Disable compile-time optimizations (Enabled by default)]),
    [true], [enable_optimized=yes] )
 AC_ARG_ENABLE( profiled,
-   AS_HELP_STRING( [--enable-profiled], [Enable profiling build (implies disable-optimized)]),
+   AS_HELP_STRING( [--enable-profiled], [Enable profiling build]),
    [if test "$enableval" == "yes"; then
       enable_profiled=yes;
     fi] )
@@ -60,17 +60,23 @@
 
 dnl ------------ 
 
-if test "x$enable_profiled" = "xyes"; then
-   CFLAGS="-g -pg -fprofile-arcs"
-   LDFLAGS="$LDFLAGS -pg";
-elif test "x$enable_optimized" = "xyes"; then
-   CFLAGS="-g -O2 -fexceptions -fomit-frame-pointer"
-   AC_DEFINE(HAVE_EXCEPTIONS, [1], [Have exception stack-frame information])
+if test "x$enable_optimized" = "xyes"; then
+   CFLAGS="-g -O2 -msse2 -mfpmath=sse"
+   if test "x$enable_profiled" != "xyes"; then
+       dnl -fomit-frame-pointer can't be used with -pg
+       CFLAGS="$CFLAGS -fexceptions -fomit-frame-pointer"
+       AC_DEFINE(HAVE_EXCEPTIONS, [1], [Have exception stack-frame information])
+   fi
    AC_DEFINE(HAVE_FASTCALL, [1], [Use fast register-passing calling conventions])
 else 
    CFLAGS="-g3"
 fi
 
+if test "x$enable_profiled" = "xyes"; then
+   CFLAGS="$CFLAGS -pg"
+   LDFLAGS="$LDFLAGS -pg";
+fi
+
 if test "x$GCC" = "xyes"; then
    CFLAGS="$CFLAGS -fno-strict-aliasing"
 fi