Fixes for arm64

CMakeLists.txt

@@ -75,6 +75,13 @@ if(NOT CXX_MARCH)
   set(CXX_MARCH native)
 endif()
 
+IF(NOT APPLE OR NOT CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64")
+  set(BASALT_MARCH_FLAGS "-march=${CXX_MARCH}")
+ELSE()
+  message(STATUS "Running on Apple ${CMAKE_SYSTEM_PROCESSOR}. Disabled -march flag.")
+ENDIF()
+
+
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
@@ -239,7 +246,7 @@ endif()
 
 
 # setup combined compiler flags
-set(CMAKE_CXX_FLAGS "${BASALT_CXX_FLAGS} -march=${CXX_MARCH} ${BASALT_PASSED_CXX_FLAGS}")
+set(CMAKE_CXX_FLAGS "${BASALT_CXX_FLAGS} ${BASALT_MARCH_FLAGS} ${BASALT_PASSED_CXX_FLAGS}")
 
 
 set(EIGEN_INCLUDE_DIR_HINTS ${EIGEN_ROOT})

thirdparty/CMakeLists.txt

@@ -50,7 +50,7 @@ set_target_properties(opengv PROPERTIES
 # fix opengv: compile options (CMAKE_CXX_FLAGS is overwritten by Opengv)
 target_compile_options(opengv PRIVATE
   -Wno-unused-private-field
-  -march=${CXX_MARCH}
+  ${BASALT_MARCH_FLAGS}
   ${BASALT_PASSED_CXX_FLAGS})
 
 # TODO: enable once mpark issue is fixed upstream pangolin
@@ -69,7 +69,7 @@ endif()
 
 # fix pangolin: macOS >= 10.14 Mojave
 if(APPLE AND CMAKE_SYSTEM_VERSION VERSION_GREATER_EQUAL 18.0.0)
-  target_compile_options(pangolin PRIVATE "-Wno-deprecated-declarations")
+  target_compile_options(pangolin PRIVATE "-Wno-deprecated-declarations" "-Wno-deprecated-copy")
 endif()
 
 # fix pangolin: clang