diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5693c822..3c93c0ac 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -100,6 +100,16 @@ if (NOT MSVC AND POSSIBLE_TO_BUILD_32BIT)
 		message(STATUS "Bitness: 64-bit")
 	endif (BUILD_BIOMEVAL_32BIT)
 endif (NOT MSVC AND POSSIBLE_TO_BUILD_32BIT)
+
+# Build sources that require libhwloc
+option(WITH_HWLOC "Build sources that require libhwloc" ON)
+# Build sources that require OpenMPI
+option(WITH_MPI "Build sources that require MPI" ON)
+# Build sources that require FFMPEG
+option(WITH_FFMPEG "Build sources that require FFMPEG" ON)
+# Build sources that require PCSC
+option(WITH_PCSC "Build sources that require PCSC" ON)
+
 #
 # The CMake config files must exist in the directories added to this config:
 #
@@ -135,4 +145,4 @@ endif (BUILD_BIOMEVAL_TESTS)
 
 if (BUILD_BIOMEVAL_TESTS)
 	add_subdirectory(src/test/ bin)
-endif (BUILD_BIOMEVAL_TESTS)
\ No newline at end of file
+endif (BUILD_BIOMEVAL_TESTS)
diff --git a/src/libbiomeval/CMakeLists.txt b/src/libbiomeval/CMakeLists.txt
index f412201e..2a1cbd43 100644
--- a/src/libbiomeval/CMakeLists.txt
+++ b/src/libbiomeval/CMakeLists.txt
@@ -188,6 +188,7 @@ endif(MSVC)
 #
 set(PACKAGES ${CORE} ${IO} ${RECORDSTORE} ${IMAGE} ${FEATURE} ${VIEW} ${DATA} ${FINGER} ${PALM} ${PLANTAR} ${IRIS} ${FACE} ${PROCESS} ${MESSAGE_CENTER})
 
+if (WITH_FFMPEG)
 find_package(FFMPEG)
 if(FFMPEG_FOUND)
   if ((MSVC AND BUILD_BIOMEVAL_SHARED) OR NOT MSVC)
@@ -199,12 +200,17 @@ if(FFMPEG_FOUND)
   endif (MSVC AND BUILD_BIOMEVAL_STATIC)
   message(STATUS "Adding VIDEO support.")
 else(FFMPEG_FOUND)
+  # FIXME: Should we complain if WITH_FFMPEG=YES but FFMPEG is not found?
   message(STATUS "Building without VIDEO support.")
 endif(FFMPEG_FOUND)
+else(WITH_FFMPEG)
+  message(STATUS "Building without VIDEO support.")
+endif(WITH_FFMPEG)
 
 #
 # PCSC (Smartcard) support is an optional library
 #
+if (WITH_PCSC)
 if (${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
 	find_library(PCSC_FRAMEWORK PCSC)  
 	if (PCSC_FRAMEWORK)
@@ -226,8 +232,12 @@ if (PCSC_FOUND)
 		target_include_directories(deviceobjs-static PUBLIC ${BIOMEVAL_INCLUDE})
 	endif (MSVC AND BUILD_BIOMEVAL_STATIC)
 else (PCSC_FOUND)
+	# FIXME: Should we complain if WITH_PCSC=YES but PCSC is not found?
 	message(STATUS "Building without PCSC support.")
 endif (PCSC_FOUND)
+else(WITH_PCSC)
+	message(STATUS "Building without PCSC support.")
+endif(WITH_PCSC)
 
 #
 # Keep MPI related files separate so we can use a different compiler command.
@@ -235,6 +245,7 @@ endif (PCSC_FOUND)
 # be added to the BIOMEVAL library later. MPI is optional.
 #
 set(MPISOURCES ${MPIBASE} ${MPIDISTRIBUTOR} ${MPIRECEIVER})
+if(WITH_MPI)
 # Provide some hints to help find MPI
 list(APPEND CMAKE_PREFIX_PATH "/opt/local/bin")
 list(APPEND CMAKE_PREFIX_PATH "/usr/lib/openmpi/bin")
@@ -257,8 +268,12 @@ if(MPI_CXX_FOUND AND NOT MSVC)
       PUBLIC ${MPI_CXX_INCLUDE_DIRS} ${BIOMEVAL_INCLUDE})
   endif(${CMAKE_VERSION} VERSION_LESS "3.10")
 else(MPI_CXX_FOUND AND NOT MSVC)
+  # FIXME: Should we stop if WITH_MPI=ON, but MPI not found?
   message(STATUS "Building without MPI support.")
 endif(MPI_CXX_FOUND AND NOT MSVC)
+else(WITH_MPI)
+  message(STATUS "Building without MPI support.")
+endif(WITH_MPI)
 
 #
 # Build the Framework-local version of NBIS
@@ -572,6 +587,8 @@ endif(PCSC_FOUND)
 #
 # The Portable Hardware Locality hwloc
 #
+if (WITH_HWLOC)
+add_definitions(-DBIOMEVAL_WITH_HWLOC)
 set(HWLOC_FIND_REQUIRED TRUE)
 find_package(HWLOC)
 if(NOT HWLOC_FOUND)
@@ -581,6 +598,9 @@ include_directories(PUBLIC ${HWLOC_INCLUDE_DIR})
 if (BUILD_BIOMEVAL_SHARED)
 	target_link_libraries(${SHAREDLIB} ${HWLOC_LIBRARIES})
 endif (BUILD_BIOMEVAL_SHARED)
+else (WITH_HWLOC)
+    message(STATUS "Building without HWLOC support.")
+endif (WITH_HWLOC)
 
 #
 # Other libs not specifically searched for above.
diff --git a/src/libbiomeval/be_system.cpp b/src/libbiomeval/be_system.cpp
index 910a18db..9abd3a74 100644
--- a/src/libbiomeval/be_system.cpp
+++ b/src/libbiomeval/be_system.cpp
@@ -18,7 +18,10 @@
 #include <sys/types.h>
 #include <sys/sysctl.h>
 #endif
+
+#ifdef BIOMEVAL_WITH_HWLOC
 #include <hwloc.h>
+#endif
 
 #include <be_sysdeps.h>
 
@@ -35,6 +38,7 @@ BiometricEvaluation::System::getCPUCount()
 uint32_t
 BiometricEvaluation::System::getCPUCoreCount()
 {
+#ifdef BIOMEVAL_WITH_HWLOC
 	hwloc_topology_t topology;
 	hwloc_topology_init(&topology);
 	hwloc_topology_load(topology);
@@ -46,11 +50,15 @@ BiometricEvaluation::System::getCPUCoreCount()
 	uint32_t count = hwloc_get_nbobjs_by_depth(topology, depth);
 	hwloc_topology_destroy(topology);
 	return (count);
+#else
+	throw BiometricEvaluation::Error::NotImplemented{};
+#endif
 }
 
 uint32_t
 BiometricEvaluation::System::getCPUSocketCount()
 {
+#ifdef BIOMEVAL_WITH_HWLOC
 	hwloc_topology_t topology;
 	hwloc_topology_init(&topology);
 	hwloc_topology_load(topology);
@@ -63,6 +71,9 @@ BiometricEvaluation::System::getCPUSocketCount()
 	uint32_t count = hwloc_get_nbobjs_by_depth(topology, depth);
 	hwloc_topology_destroy(topology);
 	return (count);
+#else
+	throw BiometricEvaluation::Error::NotImplemented{};
+#endif
 }
 
 uint64_t
diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
index 18d74a73..e5222e17 100644
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -85,10 +85,12 @@ endif()
 
 # Windows doesn't have the concept of rpath. DLLs must be in PATH
 if(MSVC)
+  if (WITH_FFMPEG)
   find_package(FFMPEG)
   if(FFMPEG_FOUND)
     link_libraries(${FFMPEG_LIBRARIES})
   endif(FFMPEG_FOUND)
+  endif(WITH_FFMPEG)
 
   find_package(OPENSSL)
   if(OPENSSL_FOUND)
@@ -110,10 +112,12 @@ if(MSVC)
     link_libraries(${OPENJP2_LIBRARIES})
   endif(OPENJP2_FOUND)
 
+  if(WITH_HWLOC)
   find_package(HWLOC)
   if(HWLOC_FOUND)
     link_libraries(${HWLOC_LIBRARIES})
   endif(HWLOC_FOUND)
+  endif(WITH_HWLOC)
 
   find_package(PNG)
   if(PNG_FOUND)