From 3281067e0914637d9ca68056cb9ce657d67d0f06 Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Tue, 9 Mar 2010 21:43:36 +0000
Subject: [PATCH] handle an empty OPT variable correctly #8100

---
 configure    | 2 +-
 configure.in | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 56e6030f345..90bcad4c50d 100755
--- a/configure
+++ b/configure
@@ -4596,7 +4596,7 @@ fi
 # tweak OPT based on compiler and platform, only if the user didn't set
 # it on the command line
 
-if test -z "$OPT"
+if test "${OPT-unset}" == "unset"
 then
     case $GCC in
     yes)
diff --git a/configure.in b/configure.in
index 7d14bfdfe98..5491778a0ab 100644
--- a/configure.in
+++ b/configure.in
@@ -881,7 +881,7 @@ fi],
 # tweak OPT based on compiler and platform, only if the user didn't set
 # it on the command line
 AC_SUBST(OPT)
-if test -z "$OPT"
+if test "${OPT-unset}" == "unset"
 then
     case $GCC in
     yes)