diff --git a/configure b/configure
index c21c70d0ffd..15f7848f0a2 100755
--- a/configure
+++ b/configure
@@ -9670,7 +9670,7 @@ test -n "$CROSSCC" || CROSSCC="false"
     then
         ac_save_CC="$CC"
         saved_CFLAGS=$CFLAGS
-        CROSSCFLAGS=${CROSSCFLAGS:-$CFLAGS}
+        CROSSCFLAGS=${CROSSCFLAGS:-"-g -O2"}
 
         EXTRACROSSCFLAGS="-DWINE_CROSSTEST -Wall"
 
diff --git a/configure.ac b/configure.ac
index 02e7e9ec488..b459e0ea19a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1002,7 +1002,7 @@ then
     then
         ac_save_CC="$CC"
         saved_CFLAGS=$CFLAGS
-        AC_SUBST(CROSSCFLAGS,${CROSSCFLAGS:-$CFLAGS})
+        AC_SUBST(CROSSCFLAGS,${CROSSCFLAGS:-"-g -O2"})
         AC_SUBST(EXTRACROSSCFLAGS,"-DWINE_CROSSTEST -Wall")
 
         CC="$CROSSCC"