diff --git a/Makefile.in b/Makefile.in
index 9d48fe27..034a35a3 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -207,7 +207,9 @@ am__DIST_COMMON = $(srcdir)/Makefile.in \
 	$(top_srcdir)/src/libsodium/include/sodium/version.h.in \
 	AUTHORS ChangeLog THANKS build-aux/compile \
 	build-aux/config.guess build-aux/config.sub \
-	build-aux/install-sh build-aux/ltmain.sh build-aux/missing
+	build-aux/install-sh build-aux/ltmain.sh build-aux/missing \
+	compile config.guess config.sub depcomp install-sh ltmain.sh \
+	missing
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
 distdir = $(PACKAGE)-$(VERSION)
 top_distdir = $(distdir)
@@ -336,6 +338,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
diff --git a/builds/Makefile.in b/builds/Makefile.in
index a140757b..ea45ecb1 100644
--- a/builds/Makefile.in
+++ b/builds/Makefile.in
@@ -214,6 +214,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
diff --git a/configure b/configure
index 0d59f16b..ce9205ab 100755
--- a/configure
+++ b/configure
@@ -704,6 +704,7 @@ VALGRIND_ENABLED
 VALGRIND_ENABLED_FALSE
 VALGRIND_ENABLED_TRUE
 VALGRIND
+PKGCONFIG_LIBS_PRIVATE
 SAFECODE_HOME
 PTHREAD_CFLAGS
 PTHREAD_LIBS
@@ -3275,7 +3276,7 @@ fi
 
 SODIUM_LIBRARY_VERSION_MAJOR=10
 SODIUM_LIBRARY_VERSION_MINOR=2
-DLL_VERSION=8
+DLL_VERSION=23
 SODIUM_LIBRARY_VERSION=25:0:2
 #                       | | |
 #                +------+ | +---+
@@ -3295,6 +3296,7 @@ SODIUM_LIBRARY_VERSION=25:0:2
 
 
 LX_CFLAGS=${CFLAGS-NONE}
+PKGCONFIG_LIBS_PRIVATE=""
 
 
 if pwd | fgrep ' ' > /dev/null 2>&1; then :
@@ -5463,6 +5465,7 @@ $as_echo "#define HAVE_PTHREAD 1" >>confdefs.h
 
     with_threads="yes"
     LIBS="$PTHREAD_LIBS $LIBS"
+    PKGCONFIG_LIBS_PRIVATE="$PTHREAD_LIBS $PTHREAD_CFLAGS $PKGCONFIG_LIBS_PRIVATE"
     CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
     CC="$PTHREAD_CC"
         :
@@ -5745,6 +5748,78 @@ else
   :
 fi
 
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -ftree-vectorize" >&5
+$as_echo_n "checking whether C compiler accepts -ftree-vectorize... " >&6; }
+if ${ax_cv_check_cflags___ftree_vectorize+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  ax_check_save_flags=$CFLAGS
+  CFLAGS="$CFLAGS  -ftree-vectorize"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <time.h>
+int
+main ()
+{
+time_t x; int fodder = 0; if (fodder > -1000 && time(&x)) return (int) x
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_check_cflags___ftree_vectorize=yes
+else
+  ax_cv_check_cflags___ftree_vectorize=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  CFLAGS=$ax_check_save_flags
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___ftree_vectorize" >&5
+$as_echo "$ax_cv_check_cflags___ftree_vectorize" >&6; }
+if test "x$ax_cv_check_cflags___ftree_vectorize" = xyes; then :
+  CFLAGS="$CFLAGS -ftree-vectorize"
+else
+  :
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -ftree-slp-vectorize" >&5
+$as_echo_n "checking whether C compiler accepts -ftree-slp-vectorize... " >&6; }
+if ${ax_cv_check_cflags___ftree_slp_vectorize+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  ax_check_save_flags=$CFLAGS
+  CFLAGS="$CFLAGS  -ftree-slp-vectorize"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <time.h>
+int
+main ()
+{
+time_t x; int fodder = 0; if (fodder > -1000 && time(&x)) return (int) x
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ax_cv_check_cflags___ftree_slp_vectorize=yes
+else
+  ax_cv_check_cflags___ftree_slp_vectorize=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  CFLAGS=$ax_check_save_flags
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___ftree_slp_vectorize" >&5
+$as_echo "$ax_cv_check_cflags___ftree_slp_vectorize" >&6; }
+if test "x$ax_cv_check_cflags___ftree_slp_vectorize" = xyes; then :
+  CFLAGS="$CFLAGS -ftree-slp-vectorize"
+else
+  :
+fi
+
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fomit-frame-pointer" >&5
 $as_echo_n "checking whether C compiler accepts -fomit-frame-pointer... " >&6; }
 if ${ax_cv_check_cflags___fomit_frame_pointer+:} false; then :
@@ -5826,6 +5901,7 @@ fi
 
 
 
+
 		# Check whether --enable-valgrind was given.
 if test "${enable_valgrind+set}" = set; then :
   enableval=$enable_valgrind; enable_valgrind=$enableval
diff --git a/configure.ac b/configure.ac
index 28eeb5dd..02619d4a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,6 +36,7 @@ AC_SUBST(DLL_VERSION)
 
 AC_LANG_ASSERT(C)
 LX_CFLAGS=${CFLAGS-NONE}
+PKGCONFIG_LIBS_PRIVATE=""
 
 dnl Path check
 
@@ -127,6 +128,7 @@ AS_IF([test "x$withval" = "xyes"], [
     AC_DEFINE([HAVE_PTHREAD], [1], [Define if you have POSIX threads libraries and header files])
     with_threads="yes"
     LIBS="$PTHREAD_LIBS $LIBS"
+    PKGCONFIG_LIBS_PRIVATE="$PTHREAD_LIBS $PTHREAD_CFLAGS $PKGCONFIG_LIBS_PRIVATE"
     CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
     CC="$PTHREAD_CC"])
 ], [with_threads="no"])
@@ -192,7 +194,8 @@ AC_ARG_ENABLE(opt,
   ])
 ])
 
-AC_SUBST([MAINT])
+AC_SUBST(MAINT)
+AC_SUBST(PKGCONFIG_LIBS_PRIVATE)
 
 AX_VALGRIND_CHECK
 
diff --git a/contrib/Makefile.in b/contrib/Makefile.in
index 0ee01446..08ce51d5 100644
--- a/contrib/Makefile.in
+++ b/contrib/Makefile.in
@@ -214,6 +214,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
diff --git a/dist-build/Makefile.in b/dist-build/Makefile.in
index 881c44fa..052987b6 100644
--- a/dist-build/Makefile.in
+++ b/dist-build/Makefile.in
@@ -214,6 +214,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
diff --git a/libsodium-uninstalled.pc.in b/libsodium-uninstalled.pc.in
index 3d502308..068a9c6b 100644
--- a/libsodium-uninstalled.pc.in
+++ b/libsodium-uninstalled.pc.in
@@ -3,4 +3,5 @@ Version: @PACKAGE_VERSION@
 Description: A modern and easy-to-use crypto library
 
 Libs: -L${pcfiledir}/src/libsodium -lsodium
+Libs.private: @PKGCONFIG_LIBS_PRIVATE@
 Cflags: -I${pcfiledir}/src/libsodium/include -I@top_srcdir@/src/libsodium/include -I@top_srcdir@/src/libsodium/include/sodium
diff --git a/libsodium.pc.in b/libsodium.pc.in
index 19b3c1af..6c2b43aa 100644
--- a/libsodium.pc.in
+++ b/libsodium.pc.in
@@ -8,4 +8,5 @@ Version: @PACKAGE_VERSION@
 Description: A modern and easy-to-use crypto library
 
 Libs: -L${libdir} -lsodium
+Libs.private: @PKGCONFIG_LIBS_PRIVATE@
 Cflags: -I${includedir}
diff --git a/msvc-scripts/Makefile.in b/msvc-scripts/Makefile.in
index f1f08897..210acdf7 100644
--- a/msvc-scripts/Makefile.in
+++ b/msvc-scripts/Makefile.in
@@ -214,6 +214,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
diff --git a/src/Makefile.in b/src/Makefile.in
index a4d6091e..d243b0df 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -274,6 +274,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
diff --git a/src/libsodium/Makefile.in b/src/libsodium/Makefile.in
index c4884aa6..d19d385b 100644
--- a/src/libsodium/Makefile.in
+++ b/src/libsodium/Makefile.in
@@ -834,6 +834,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
diff --git a/src/libsodium/include/Makefile.in b/src/libsodium/include/Makefile.in
index e7a87234..f6e421b6 100644
--- a/src/libsodium/include/Makefile.in
+++ b/src/libsodium/include/Makefile.in
@@ -306,6 +306,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
diff --git a/test/Makefile.in b/test/Makefile.in
index 4fcf9de3..803acc6c 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -274,6 +274,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
diff --git a/test/default/Makefile.in b/test/default/Makefile.in
index 4b4f3628..4c5027e7 100644
--- a/test/default/Makefile.in
+++ b/test/default/Makefile.in
@@ -804,6 +804,7 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_URL = @PACKAGE_URL@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
+PKGCONFIG_LIBS_PRIVATE = @PKGCONFIG_LIBS_PRIVATE@
 PTHREAD_CC = @PTHREAD_CC@
 PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
 PTHREAD_LIBS = @PTHREAD_LIBS@