--- configure.orig	2020-12-11 13:58:21 UTC
+++ configure
@@ -13335,7 +13335,9 @@ else
   enable_threadsafe=yes
 fi
 
-if test x"$enable_threadsafe" != "xno"; then
+if test x"$enable_threadsafe" == "xno"; then
+  BUILD_CFLAGS="$BUILD_CFLAGS -DSQLITE_THREADSAFE=0"
+else
   BUILD_CFLAGS="$BUILD_CFLAGS -D_REENTRANT=1 -DSQLITE_THREADSAFE=1"
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_create" >&5
 $as_echo_n "checking for library containing pthread_create... " >&6; }