Preliminary blocking --enable-libcdio if CFLAGS, LDFLAGS contain option -static

xorriso/configure_ac.txt

@@ -406,7 +406,15 @@ then
       echo "WARNING: could not enable use of libcdio as system adapter"
     fi
 else
-    echo "enabled  use of libcdio as system adapter"
+    if echo " $CFLAGS $LDFLAGS " | grep ' -static ' >/dev/null
+    then
+      echo "WARNING : found option -static in CFLAGS or LDFLAGS"
+      echo "WARNING : libcdio API conflicts with inner symbols of xorriso"
+      echo "WARNING : use of libcdio as system adapter disabled"
+      LIBCDIO_DEF=
+    else
+      echo "enabled  use of libcdio as system adapter"
+    fi
 fi
 if test x$LIBCDIO_DEF = x-DLibburn_use_libcdiO
 then