+ for ac_prog in sw_vers
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_prog_OSX_SW_VERS+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$OSX_SW_VERS"; then
+ ac_cv_prog_OSX_SW_VERS="$OSX_SW_VERS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+ ac_cv_prog_OSX_SW_VERS="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+OSX_SW_VERS=$ac_cv_prog_OSX_SW_VERS
+if test -n "$OSX_SW_VERS"; then
+ { echo "$as_me:$LINENO: result: $OSX_SW_VERS" >&5
+echo "${ECHO_T}$OSX_SW_VERS" >&6; }
+else
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+ test -n "$OSX_SW_VERS" && break
+done
+
+ if test "$OSX_SW_VERS" != ""; then
+ OSX_VERSION=`sw_vers -productVersion | grep 10.[0-9]`
+ else
+ { echo "$as_me:$LINENO: WARNING: Assuming OS X 10.4, use --with-macosx-version-min to override." >&5
+echo "$as_me: WARNING: Assuming OS X 10.4, use --with-macosx-version-min to override." >&2;}
+ OSX_VERSION="10.4"
+ fi