Add --architecture option to install.py

Specifies compiler -march argument

Author: Daniel Cooke

CMakeLists.txt

@@ -43,6 +43,7 @@ configure_file (
 include_directories(${CMAKE_BINARY_DIR}/generated)
 
 option(BUILD_SHARED_LIBS "Build the shared library" ON)
+option(COMPILER_ARCHITECTURE "Compiler -march argument" "native")
 
 set(CMAKE_COLOR_MAKEFILE ON)
 

scripts/install.py

@@ -372,6 +372,8 @@ def main(args):
         cmake_options.append("-DBUILD_SHARED_LIBS=OFF")
     if args["verbose"]:
         cmake_options.append("-DCMAKE_VERBOSE_MAKEFILE:BOOL=ON")
+    if args["architecture"]:
+            cmake_options.append("-DCOMPILER_ARCHITECTURE=" + args["architecture"])
     if dependencies_dir is not None:
         if args["c_compiler"]:
             cmake_options.append("-DCMAKE_C_COMPILER=" + str(args["c_compiler"]))
@@ -506,5 +508,9 @@ def main(args):
                         default=False,
                         help='Ouput verbose make information',
                         action='store_true')
+    parser.add_argument('--architecture',
+                        required=False,
+                        type=str,
+                        help='The architecture to compile for')
     args = vars(parser.parse_args())
     main(args)

src/CMakeLists.txt

@@ -657,7 +657,7 @@ if (NOT BUILD_SHARED_LIBS)
     set(HTSlib_USE_STATIC_LIBS ON)
 endif()
 
-set(CXX_OPTIMIZATION_FLAGS -ffast-math -march=native)
+set(CXX_OPTIMIZATION_FLAGS -ffast-math -march=${COMPILER_ARCHITECTURE})
 if (CMAKE_COMPILER_IS_GNUCXX)
     set(CXX_OPTIMIZATION_FLAGS ${CXX_OPTIMIZATION_FLAGS} -mfpmath=both)
 endif()