--- configure.orig	2020-06-16 12:17:17.000000000 -0400
+++ configure
@@ -540,6 +540,6 @@
-    FreeBSD)
+    FreeBSD|MidnightBSD)
         make="gmake"
-        LDFLAGS="$LDFLAGS -export-dynamic"
+        LDFLAGS="$LDFLAGS"
         CFLAGS="$CFLAGS -pthread"
         GPAC_SH_FLAGS=-pthread
         freebsd="yes"
@@ -708,6 +708,6 @@
 #GCC opt
 if test "$no_gcc_opt" = "no"; then
-    CFLAGS="-O3 $CFLAGS"
+    CFLAGS=" $CFLAGS"
 else
     CFLAGS="-O0 $CFLAGS"
