fix MSVC static library flags for ARM64 builds

Author: Harishmcw

BLOSC/config/zlib-CMakeLists.txt

@@ -148,8 +148,12 @@ endif(MINGW)
 
 ### Define library
 add_library(zlibstat STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
-if (MSVC AND CMAKE_CL_64)
-  set_target_properties (zlibstat PROPERTIES STATIC_LIBRARY_FLAGS "/machine:x64")
+if (MSVC)
+  if (CMAKE_SYSTEM_PROCESSOR MATCHES "^(AMD64|x86_64)$")
+    set_target_properties(${ZLIB_LIB_TARGET} PROPERTIES STATIC_LIBRARY_FLAGS "/machine:x64")
+  elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "ARM64")
+    set_target_properties(${ZLIB_LIB_TARGET} PROPERTIES STATIC_LIBRARY_FLAGS "/machine:ARM64")
+  endif()
 endif ()
 set_target_properties(zlibstat PROPERTIES
     PUBLIC_HEADER ""

LZF/config/CMakeLists.txt

@@ -146,8 +146,12 @@ set (LZF_SRCS
 
 add_library (${LZF_LIB_TARGET} STATIC ${LZF_SRCS} ${LZF_HDRS} ${LZF_PUBLIC_HEADERS})
 
-if (MSVC AND CMAKE_CL_64)
-  set_target_properties (${LZF_LIB_TARGET} PROPERTIES STATIC_LIBRARY_FLAGS "/machine:x64")
+if (MSVC)
+  if (CMAKE_SYSTEM_PROCESSOR MATCHES "^(AMD64|x86_64)$")
+    set_target_properties(${ZLIB_LIB_TARGET} PROPERTIES STATIC_LIBRARY_FLAGS "/machine:x64")
+  elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "ARM64")
+    set_target_properties(${ZLIB_LIB_TARGET} PROPERTIES STATIC_LIBRARY_FLAGS "/machine:ARM64")
+  endif()
 endif ()
 TARGET_C_PROPERTIES (${LZF_LIB_TARGET} STATIC)
 target_link_libraries (${LZF_LIB_TARGET} ${H5PL_LINK_LIBS})