diff --git a/CMakeLists.txt b/CMakeLists.txt
index 21f6f65..0385712 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,11 +9,9 @@ set(TEST_PATH ${CMAKE_CURRENT_SOURCE_DIR}/tests)
 set(CROARING_PATH ${DEPS_PATH}/CRoaring)
 set(HIREDIS_PATH ${DEPS_PATH}/hiredis)
 set(SDS_PATH ${DEPS_PATH}/sds)
-set(CROARING_BUILD_PATH ${DEPS_PATH}/CRoaring/build)
 #set(CMAKE_C_FLAGS_RELEASE "") # removes -NDEBUG
 set(CMAKE_BUILD_TYPE Debug)
 
-link_directories(${CROARING_BUILD_PATH})
 link_directories(${HIREDIS_PATH})
 include_directories(${CROARING_PATH})
 include_directories(${HIREDIS_PATH})
@@ -26,10 +24,11 @@ message(STATUS "Compiling unit tests")
 
 set(UNIT_FILES
         ${SRC_PATH}/data-structure.c
+        ${SRC_PATH}/roaring.c
         ${TEST_PATH}/unit.c)
 
 add_executable(unit ${UNIT_FILES})
-target_link_libraries(unit roaring)
+target_link_libraries(unit)
 add_test(NAME unit_tests COMMAND unit)
 
 ####### performance tests #######
@@ -51,4 +50,4 @@ set(SOURCE_FILES ${SRC_PATH}/redis-roaring.c
         ${SRC_PATH}/data-structure.c
         ${SDS_PATH}/sds.c)
 add_library(redis-roaring SHARED ${SOURCE_FILES})
-target_link_libraries(redis-roaring roaring)
+target_link_libraries(redis-roaring)
diff --git a/configure.sh b/configure.sh
index 5729be2..6404e3e 100755
--- a/configure.sh
+++ b/configure.sh
@@ -6,23 +6,17 @@ function configure_submodules()
   git submodule update
   git submodule status
 }
-function configure_croaring()
+function amalgamate_croaring()
 {
-  pushd .
-
-  cd deps/CRoaring
-
+  pushd . 
+  cd src 
   # generates header files
-  ./amalgamation.sh
-
-  # https://github.com/RoaringBitmap/CRoaring#building-with-cmake-linux-and-macos-visual-studio-users-should-see-below
-  mkdir -p build
-  cd build
-  cmake -DBUILD_STATIC=ON -DCMAKE_BUILD_TYPE=Debug ..
-  make
-
+  ../deps/CRoaring/amalgamation.sh 
+  cp ../deps/CRoaring/roaring.c .
+  cp ../deps/CRoaring/roaring.h .
+  rm roaring.hh && rm amalgamation_demo.c && rm amalgamation_demo.cpp
   popd
-}
+} 
 function configure_redis()
 {
   cd deps/redis
@@ -60,7 +54,7 @@ function instructions()
 }
 
 configure_submodules
-configure_croaring
+amalgamate_croaring
 configure_redis
 configure_hiredis
 build
diff --git a/src/data-structure.c b/src/data-structure.c
index 0ff4575..640a1e9 100644
--- a/src/data-structure.c
+++ b/src/data-structure.c
@@ -1,5 +1,7 @@
 #include "data-structure.h"
 
+#include "roaring.h"
+
 /* === Internal data structure === */
 
 Bitmap* bitmap_alloc() {
diff --git a/src/redis-roaring.c b/src/redis-roaring.c
index 9e9a80a..e83e59a 100644
--- a/src/redis-roaring.c
+++ b/src/redis-roaring.c
@@ -3,6 +3,13 @@
 #include "type.h"
 #include "sds.h"
 
+#define malloc(size) RedisModule_Alloc(size)
+#define calloc(count, size) RedisModule_Calloc(count, size)
+#define realloc(p, sz) RedisModule_Realloc(p, sz)
+#define free(p) RedisModule_Free(p)
+
+#include "roaring.c" 
+
 static RedisModuleType* BitmapType;
 
 /* === Bitmap type commands === */