add cmake options to disable bifrost architecture-specific code

CMakeLists.txt

@@ -8,6 +8,17 @@ if(NOT MAX_KMER_SIZE)
 set(MAX_KMER_SIZE "32")
 endif()
 
+set(DO_ENABLE_AVX2 "")
+set(DO_ENABLE_COMPILATION_ARCH "")
+if(ENABLE_AVX2 MATCHES "OFF")
+add_compile_definitions("ENABLE_AVX2=OFF")
+set(DO_ENABLE_AVX2 "-DENABLE_AVX2=OFF")
+endif(ENABLE_AVX2 MATCHES "OFF")
+if(COMPILATION_ARCH MATCHES "OFF")
+add_compile_definitions("COMPILATION_ARCH=OFF")
+set(DO_ENABLE_COMPILATION_ARCH "-DCOMPILATION_ARCH=OFF")
+endif(COMPILATION_ARCH MATCHES "OFF")
+
 add_compile_definitions("MAX_KMER_SIZE=${MAX_KMER_SIZE}")
 
 
@@ -78,7 +89,7 @@ ExternalProject_Add(bifrost
     PREFIX ${PROJECT_SOURCE_DIR}/ext/bifrost
     SOURCE_DIR ${PROJECT_SOURCE_DIR}/ext/bifrost
     BUILD_IN_SOURCE 1
-    CONFIGURE_COMMAND mkdir -p build && cd build && cmake .. -DMAX_KMER_SIZE=${MAX_KMER_SIZE} -DCMAKE_INSTALL_PREFIX=${PREFIX} -DCMAKE_CXX_FLAGS=${PROJECT_BIFROST_CMAKE_CXX_FLAGS}
+    CONFIGURE_COMMAND mkdir -p build && cd build && cmake .. -DMAX_KMER_SIZE=${MAX_KMER_SIZE} -DCMAKE_INSTALL_PREFIX=${PREFIX} -DCMAKE_CXX_FLAGS=${PROJECT_BIFROST_CMAKE_CXX_FLAGS} ${DO_ENABLE_AVX2} ${DO_ENABLE_COMPILATION_ARCH}
     BUILD_COMMAND cd build && make
     INSTALL_COMMAND ""
 )