diff --git a/Rakefile b/Rakefile
index d010f93..f0186bc 100644
--- a/Rakefile
+++ b/Rakefile
@@ -7,3 +7,10 @@ RSpec::Core::RakeTask.new(:spec) do |spec|
   spec.pattern = 'spec'
   spec.rspec_opts = ['--color']
 end
+
+desc "Build micbench core execs"
+task :build_core => Dir["configure.ac", "src/*.[ch]"] do
+  sh "./autogen.sh"
+  sh "./configure"
+  sh "make"
+end
diff --git a/src/Makefile.am b/src/Makefile.am
index 8aca61e..b7fb464 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -64,8 +64,8 @@ bin_PROGRAMS += micbench-btreplay
 
 micbench_btreplay_SOURCES = micbench-btreplay-main.c $(micbench_headers)
 micbench_btreplay_LDADD = libmicbench-btreplay.la libmicbench-utils.la
-micbench_btreplay_LDFLAGS = -pthread $(GLIB_LIBS)
 libmicbench_btreplay_la_SOURCES = micbench-btreplay.c
+libmicbench_btreplay_la_LDFLAGS = -pthread $(GLIB_LIBS)
 endif
 endif
 
diff --git a/wercker.yml b/wercker.yml
index af5eed0..14d5792 100644
--- a/wercker.yml
+++ b/wercker.yml
@@ -9,13 +9,19 @@ build:
         - script:
             name: install numactl
             code: |
-              apt-get install -y numactl
+              apt-get install -y numactl libnuma-dev libaio-dev libglib2.0-dev
         - script:
             name: switch ruby to 1.9.3
             code: |
               source /etc/profile.d/rvm.sh
               rvm use 1.9.3
+
         - bundle-install
+        - script:
+            name: build core execs
+            code: |
+              bundle exec rake build_core
+
         - script:
             name: run rspec
             code: |