diff --git a/mozilla/directory/c-sdk/configure b/mozilla/directory/c-sdk/configure
index 71e1610098c..2b06ed735eb 100755
--- a/mozilla/directory/c-sdk/configure
+++ b/mozilla/directory/c-sdk/configure
@@ -2395,7 +2395,7 @@ fi;
 
 fi
 
-if test "$no_nspr" == "no" -a -z "$NSPR_CFLAGS" -a -z "$NSPR_LIBS" ; then
+if test "$no_nspr" = "no" -a -z "$NSPR_CFLAGS" -a -z "$NSPR_LIBS" ; then
    if test -z "$_SYSTEM_NSPR" -o "$_SYSTEM_NSPR" = "no" ; then
 
     echo "$as_me:$LINENO: checking checking for in-tree NSPR from ../../dist" >&5
diff --git a/mozilla/directory/c-sdk/configure.in b/mozilla/directory/c-sdk/configure.in
index eac5b5cc918..4f5d5558d7a 100644
--- a/mozilla/directory/c-sdk/configure.in
+++ b/mozilla/directory/c-sdk/configure.in
@@ -341,7 +341,7 @@ if test -z "$_SYSTEM_NSPR" -o "$_SYSTEM_NSPR" = "no" ; then
 fi
 
 dnl next, look for in-tree nspr if user did not specify explicit system nspr
-if test "$no_nspr" == "no" -a -z "$NSPR_CFLAGS" -a -z "$NSPR_LIBS" ; then
+if test "$no_nspr" = "no" -a -z "$NSPR_CFLAGS" -a -z "$NSPR_LIBS" ; then
    if test -z "$_SYSTEM_NSPR" -o "$_SYSTEM_NSPR" = "no" ; then
 dnl see if we are being built in the same build tree as nspr
       AM_PATH_INTREE_NSPR(../../dist)