diff --git a/src/auto/configure b/src/auto/configure
index ddc5c1e..0258a9e 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -6367,8 +6367,8 @@
 $as_echo_n "checking whether we can do without RTLD_GLOBAL for Python... " >&6; }
   cflags_save=$CFLAGS
   CFLAGS="$CFLAGS $PYTHON_CFLAGS"
-  ldflags_save=$LDFLAGS
-    LDFLAGS="-ldl $LDFLAGS"
+  libs_save=$LIBS
+    LIBS="-ldl $LIBS"
   if test "$cross_compiling" = yes; then :
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
@@ -6426,14 +6426,14 @@
 
 
   CFLAGS=$cflags_save
-  LDFLAGS=$ldflags_save
+  LIBS=$libs_save
 
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we can do without RTLD_GLOBAL for Python3" >&5
 $as_echo_n "checking whether we can do without RTLD_GLOBAL for Python3... " >&6; }
   cflags_save=$CFLAGS
   CFLAGS="$CFLAGS $PYTHON3_CFLAGS"
-  ldflags_save=$LDFLAGS
-    LDFLAGS="-ldl $LDFLAGS"
+  libs_save=$LIBS
+    LIBS="-ldl $LIBS"
   if test "$cross_compiling" = yes; then :
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
@@ -6492,7 +6492,7 @@
 
 
   CFLAGS=$cflags_save
-  LDFLAGS=$ldflags_save
+  LIBS=$libs_save
 
   PYTHON_SRC="if_python.c"
   PYTHON_OBJ="objects/if_python.o"
diff --git a/src/configure.in b/src/configure.in
index 033138c..7fa4297 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -1451,9 +1451,9 @@
   AC_MSG_CHECKING(whether we can do without RTLD_GLOBAL for Python)
   cflags_save=$CFLAGS
   CFLAGS="$CFLAGS $PYTHON_CFLAGS"
-  ldflags_save=$LDFLAGS
+  libs_save=$LIBS
   dnl -ldl must go first to make this work on Archlinux (Roland Puntaier)
-  LDFLAGS="-ldl $LDFLAGS"
+  LIBS="-ldl $LIBS"
   AC_RUN_IFELSE([AC_LANG_SOURCE([
     #include <dlfcn.h>
     /* If this program fails, then RTLD_GLOBAL is needed.
@@ -1491,14 +1491,14 @@
     [AC_MSG_RESULT(yes);AC_DEFINE(PY_NO_RTLD_GLOBAL)], [AC_MSG_RESULT(no)])
 
   CFLAGS=$cflags_save
-  LDFLAGS=$ldflags_save
+  LIBS=$libs_save
 
   AC_MSG_CHECKING(whether we can do without RTLD_GLOBAL for Python3)
   cflags_save=$CFLAGS
   CFLAGS="$CFLAGS $PYTHON3_CFLAGS"
-  ldflags_save=$LDFLAGS
+  libs_save=$LIBS
   dnl -ldl must go first to make this work on Archlinux (Roland Puntaier)
-  LDFLAGS="-ldl $LDFLAGS"
+  LIBS="-ldl $LIBS"
   AC_RUN_IFELSE([AC_LANG_SOURCE([
     #include <dlfcn.h>
     #include <wchar.h>
@@ -1537,7 +1537,7 @@
     [AC_MSG_RESULT(yes);AC_DEFINE(PY3_NO_RTLD_GLOBAL)], [AC_MSG_RESULT(no)])
 
   CFLAGS=$cflags_save
-  LDFLAGS=$ldflags_save
+  LIBS=$libs_save
 
   PYTHON_SRC="if_python.c"
   PYTHON_OBJ="objects/if_python.o"
diff --git a/src/version.c b/src/version.c
index 4397456..92fec40 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    650,
+/**/
     649,
 /**/
     648,