--- qp10.6.orig/configure.in	2020-06-24 23:37:02.000000000 -0000
+++ qp10.6/configure.in	2021-05-15 16:36:32.504585122 -0000
@@ -228,9 +228,12 @@
 #-----------------------------------------------------------------------------
 dnl Check for -fno-strict-aliasing
 AC_MSG_CHECKING([for -fno-strict-aliasing])
-echo "int i;" > aliasing_test.cc
-qp_alias=[`gcc -fno-strict-aliasing -c aliasing_test.cc`]
-rm aliasing_test.*
+ac_saved_cflags=$[]_AC_LANG_PREFIX[]FLAGS
+_AC_LANG_PREFIX[]FLAGS="-Werror -fno-strict-aliasing"
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int main(void) { return 0; }]])],
+    [qp_alias=""],
+    [qp_alias="not-found"])
+_AC_LANG_PREFIX[]FLAGS="$ac_saved_cflags"
 if test -n "$qp_alias"; then
     AC_MSG_RESULT(not found)
     GCC_ALIAS_FLAG=