remove unneeded -I options from configure test for may_alias attribute
this test does not include anything, so the -I options are not useful
and are just a maintenance burden if paths change.
diff --git a/configure b/configure
index 2d7ea30..41ef9df 100755
--- a/configure
+++ b/configure
@@ -338,7 +338,7 @@
#endif
x;
EOF
-if $CC $CFLAGS_C99FSE -I$srcdir/arch/$ARCH -I$srcdir/include $CPPFLAGS $CFLAGS \
+if $CC $CFLAGS_C99FSE $CPPFLAGS $CFLAGS \
-c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
printf "no\n"
else