if we're cross-compiling, fall back to a link-only test rather than trying
to run a program for the chflags functions

--- python-2.6/configure.in
+++ python-2.6/configure.in
@@ -2565,7 +2565,7 @@
 
 # On Tru64, chflags seems to be present, but calling it will
 # exit Python
-AC_MSG_CHECKING(for chflags)
+AC_CACHE_CHECK([for chflags], [py_cv_has_chflags], [dnl
 AC_TRY_RUN([
 #include <sys/stat.h>
 #include <unistd.h>
@@ -2575,12 +2575,18 @@
     return 1;
   return 0;
 }
-],AC_DEFINE(HAVE_CHFLAGS, 1, Define to 1 if you have the `chflags' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
+], [py_cv_has_chflags="yes"],
+   [py_cv_has_chflags="no"],
+   [py_cv_has_chflags="cross"])
+])
+if test "$py_cv_has_chflags" = "cross" ; then
+  AC_CHECK_FUNC([chflags], [py_cv_has_chflags="yes"], [py_cv_has_chflags="no"])
+fi
+if test "$py_cv_has_chflags" = "yes" ; then
+  AC_DEFINE(HAVE_CHFLAGS, 1, Define to 1 if you have the `chflags' function.)
+fi
 
-AC_MSG_CHECKING(for lchflags)
+AC_CACHE_CHECK([for lchflags], [py_cv_has_lchflags], [dnl
 AC_TRY_RUN([
 #include <sys/stat.h>
 #include <unistd.h>
@@ -2590,10 +2596,16 @@
     return 1;
   return 0;
 }
-],AC_DEFINE(HAVE_LCHFLAGS, 1, Define to 1 if you have the `lchflags' function.)
-  AC_MSG_RESULT(yes),
-  AC_MSG_RESULT(no)
-)
+], [py_cv_has_lchflags="yes"],
+   [py_cv_has_lchflags="no"],
+   [py_cv_has_lchflags="cross"])
+])
+if test "$py_cv_has_lchflags" = "cross" ; then
+  AC_CHECK_FUNC([lchflags], [py_cv_has_lchflags="yes"], [py_cv_has_lchflags="no"])
+fi
+if test "$py_cv_has_lchflags" = "yes" ; then
+  AC_DEFINE(HAVE_LCHFLAGS, 1, Define to 1 if you have the `lchflags' function.)
+fi
 
 dnl Check if system zlib has *Copy() functions
 dnl