diff --git a/configure b/configure
index b77e40e..affb547 100755
Binary files a/configure and b/configure differ
diff --git a/configure.in b/configure.in
index 6564c36..96b6587 100644
--- a/configure.in
+++ b/configure.in
@@ -201,11 +201,20 @@ case "${host_os}" in
         LIBS="-framework CoreAudio -framework AudioToolbox -framework AudioUnit -framework Carbon"
 
         if test "x$enable_mac_universal" = "xyes" ; then
-           mac_version_min="-mmacosx-version-min=10.3"
            if [[ -d /Developer/SDKs/MacOSX10.5.sdk ]] ; then
+              mac_version_min="-mmacosx-version-min=10.3"
               mac_arches="-arch i386 -arch ppc -arch x86_64 -arch ppc64"
               mac_sysroot="-isysroot /Developer/SDKs/MacOSX10.5.sdk"
+           elif [[ -d /Developer/SDKs/MacOSX10.6.sdk ]] ; then
+              mac_version_min="-mmacosx-version-min=10.4"
+              mac_arches="-arch i386 -arch x86_64"
+              mac_sysroot="-isysroot /Developer/SDKs/MacOSX10.6.sdk"
+           elif [[ -d /Developer/SDKs/MacOSX10.7.sdk ]] ; then
+              mac_version_min="-mmacosx-version-min=10.4"
+              mac_arches="-arch i386 -arch x86_64"
+              mac_sysroot="-isysroot /Developer/SDKs/MacOSX10.7.sdk"
            else
+              mac_version_min="-mmacosx-version-min=10.3"
               mac_arches="-arch i386 -arch ppc"
               mac_sysroot="-isysroot /Developer/SDKs/MacOSX10.4u.sdk"
            fi