diff --git a/config b/config
index e90b6a140..1f6e6e4e4 100644
--- a/config
+++ b/config
@@ -89,9 +89,7 @@ if [ "$uname_arch" = "i686" ]; then
   FLAG_MARCH='-march=i686'
 fi
 
-# Building with HTTPS fetching enabled pulls in a version of OpenSSL that causes
-# linker errors, so disable it here.
-CFLAGS="$CFLAGS -DSERF_HTTPS_FETCHING=0 $FLAG_MARCH"
+CFLAGS="$CFLAGS $FLAG_MARCH"
 
 case "$NGX_GCC_VER" in
   4.8*)
@@ -128,17 +126,10 @@ ngx_feature_path="$pagespeed_include"
 
 if $build_from_source ; then
   psol_library_binaries="\
-    $mod_pagespeed_dir/net/instaweb/automatic/pagespeed_automatic.a \
-    $mod_pagespeed_dir/out/$buildtype/obj.target/third_party/serf/libserf.a \
-    $mod_pagespeed_dir/out/$buildtype/obj.target/third_party/aprutil/libaprutil.a \
-    $mod_pagespeed_dir/out/$buildtype/obj.target/third_party/apr/libapr.a"
+    $mod_pagespeed_dir/net/instaweb/automatic/pagespeed_automatic.a"
 else
   psol_library_dir="$ngx_addon_dir/psol/lib/$buildtype/$os_name/$arch_name"
-  psol_library_binaries="\
-    $psol_library_dir/pagespeed_automatic.a \
-    $psol_library_dir/libserf.a \
-    $psol_library_dir/libaprutil.a \
-    $psol_library_dir/libapr.a"
+  psol_library_binaries="$psol_library_dir/pagespeed_automatic.a"
 fi
 
 pagespeed_libs="-lstdc++ $psol_library_binaries -lrt -pthread -lm"
@@ -190,13 +181,7 @@ if [ $ngx_found = yes ]; then
     $ps_src/ngx_rewrite_driver_factory.cc \
     $ps_src/ngx_rewrite_options.cc \
     $ps_src/ngx_server_context.cc \
-    $ps_src/ngx_url_async_fetcher.cc \
-    $mod_pagespeed_dir/out/$buildtype/obj/gen/data2c_out/instaweb/net/instaweb/apache/install/mod_pagespeed_example/mod_pagespeed_console_out.cc \
-    $mod_pagespeed_dir/out/$buildtype/obj/gen/data2c_out/instaweb/net/instaweb/apache/install/mod_pagespeed_example/mod_pagespeed_console_css_out.cc \
-    $mod_pagespeed_dir/out/$buildtype/obj/gen/data2c_out/instaweb/net/instaweb/apache/install/mod_pagespeed_example/mod_pagespeed_console_html_out.cc \
-    $mod_pagespeed_dir/net/instaweb/system/add_headers_fetcher.cc \
-    $mod_pagespeed_dir/net/instaweb/system/loopback_route_fetcher.cc \
-    $mod_pagespeed_dir/net/instaweb/system/serf_url_async_fetcher.cc"
+    $ps_src/ngx_url_async_fetcher.cc"
 
   # Make pagespeed run immediately before gzip.
   HTTP_FILTER_MODULES=$(echo $HTTP_FILTER_MODULES |\
diff --git a/src/ngx_message_handler.cc b/src/ngx_message_handler.cc
index 48b57eb8e..d6796c421 100644
--- a/src/ngx_message_handler.cc
+++ b/src/ngx_message_handler.cc
@@ -18,13 +18,13 @@
 
 #include <signal.h>
 
-#include "apr_time.h"
-
 #include "net/instaweb/util/public/abstract_mutex.h"
 #include "net/instaweb/util/public/debug.h"
 #include "net/instaweb/util/public/shared_circular_buffer.h"
 #include "net/instaweb/util/public/string_util.h"
 #include "net/instaweb/public/version.h"
+#include "pagespeed/kernel/base/posix_timer.h"
+#include "pagespeed/kernel/base/time_util.h"
 
 namespace {
 
@@ -118,10 +118,9 @@ void NgxMessageHandler::MessageVImpl(MessageType type, const char* msg,
   // Prepend time and severity to message.
   // Format is [time] [severity] [pid] message.
   GoogleString message;
-  char time_buffer[APR_CTIME_LEN + 1];
-  const char* time = time_buffer;
-  apr_status_t status = apr_ctime(time_buffer, apr_time_now());
-  if (status != APR_SUCCESS) {
+  GoogleString time;
+  PosixTimer timer;
+  if (!ConvertTimeToString(timer.NowMs(), &time)) {
     time = "?";
   }
   StrAppend(&message, "[", time, "] ",
diff --git a/src/ngx_pagespeed.cc b/src/ngx_pagespeed.cc
index 3885ede15..504e6d05f 100644
--- a/src/ngx_pagespeed.cc
+++ b/src/ngx_pagespeed.cc
@@ -69,6 +69,7 @@
 #include "net/instaweb/util/public/string_writer.h"
 #include "net/instaweb/util/public/time_util.h"
 #include "net/instaweb/util/stack_buffer.h"
+#include "pagespeed/kernel/base/posix_timer.h"
 #include "pagespeed/kernel/thread/pthread_shared_mem.h"
 #include "pagespeed/kernel/html/html_keywords.h"
 
@@ -1296,8 +1297,9 @@ bool ps_set_experiment_state_and_cookie(ngx_http_request_t* r,
   bool need_cookie = cfg_s->server_context->experiment_matcher()->
       ClassifyIntoExperiment(*request_headers, options);
   if (need_cookie && host.length() > 0) {
-    int64 time_now_us = apr_time_now();
-    int64 expiration_time_ms = (time_now_us/1000 +
+    PosixTimer timer;
+    int64 time_now_ms = timer.NowMs();
+    int64 expiration_time_ms = (time_now_ms +
                                 options->experiment_cookie_duration_ms());
 
     // TODO(jefftk): refactor SetExperimentCookie to expose the value we want to