Add support for building mupdf on Windows ARM64

scripts/wdev.py

@@ -221,6 +221,12 @@ def __init__(self, name=None):
             self.windows_name = 'x64'
             self.windows_config = 'x64'
             self.windows_suffix = '64'
+        elif name in ('arm64', 'ARM64'):
+            self.bits = 64
+            self.windows_subdir = 'ARM64/'
+            self.windows_name = 'ARM64'
+            self.windows_config = 'ARM64'
+            self.windows_suffix = '64'
         else:
             assert 0, f'Unrecognised cpu name: {name}'
 
@@ -356,10 +362,15 @@ def __repr__(self):
 
 def _cpu_name():
     '''
-    Returns `x32` or `x64` depending on Python build.
+    Returns `x32`, `x64` or `ARM64` depending on Python build.
     '''
-    #log(f'sys.maxsize={hex(sys.maxsize)}')
-    return f'x{32 if sys.maxsize == 2**31 - 1 else 64}'
+    # Check platform architecture
+    machine = platform.machine().lower()
+    if machine in ('arm64', 'aarch64'):
+        return 'arm64'
+    else:
+        #log(f'sys.maxsize={hex(sys.maxsize)}')
+        return f'x{32 if sys.maxsize == 2**31 - 1 else 64}'
 
 
 

scripts/wrap/__main__.py

@@ -1870,12 +1870,16 @@ def fn(name):
                 if state.state_.windows:
 
                     libdir = f'{build_dirs.dir_mupdf}/platform/win32/'
-                    mupdfcpp_lib = f'{build_dirs.dir_mupdf}/platform/win32/'
-                    if build_dirs.cpu.bits == 64:
+                    if build_dirs.cpu.name == 'arm64':
+                        libdir += 'ARM64/'
+                    elif build_dirs.cpu.bits == 64:
                         libdir += 'x64/'
                     libdir += 'Debug/' if debug else 'Memento/' if memento else 'Release/'
                     libs = list()
-                    libs.append(libdir + ('mupdfcpp64.lib' if build_dirs.cpu.bits == 64 else 'mupdfcpp.lib'))
+                    if build_dirs.cpu.name in ('arm64', 'x64'):
+                        libs.append(libdir + f'mupdfcpp{build_dirs.cpu.windows_suffix}.lib')
+                    else:
+                        libs.append(libdir + 'mupdfcpp.lib')
                     if memento:
                         libs.append(libdir + 'libmupdf.lib')
 

scripts/wrap/state.py

@@ -221,6 +221,12 @@ def __init__(self, name=None):
             self.windows_name = 'x64'
             self.windows_config = 'x64'
             self.windows_suffix = '64'
+        elif name in ('arm64', 'ARM64'):
+            self.bits = 64
+            self.windows_subdir = 'ARM64/'
+            self.windows_name = 'ARM64'
+            self.windows_config = 'ARM64'
+            self.windows_suffix = '64'
         else:
             assert 0, f'Unrecognised cpu name: {name}'
 
@@ -239,9 +245,14 @@ def python_version():
 
 def cpu_name():
     '''
-    Returns 'x32' or 'x64' depending on Python build.
+    Returns 'x32', 'x64' or 'ARM64' depending on Python build.
     '''
-    ret = f'x{32 if sys.maxsize == 2**31 - 1 else 64}'
+    machine = platform.machine().lower()
+    if machine in ('arm64', 'aarch64'):
+        ret = 'arm64'
+    else:
+        #log(f'sys.maxsize={hex(sys.maxsize)}')
+        ret = f'x{32 if sys.maxsize == 2**31 - 1 else 64}'
     #jlib.log(f'returning ret={ret!r}')
     return ret
 
@@ -335,7 +346,7 @@ def set_dir_so( self, dir_so):
             self.cpu = None
             self.python_version = None
             for flag in flags:
-                if flag in ('x32', 'x64'):
+                if flag in ('x32', 'x64', 'arm64', 'ARM64'):
                     self.cpu = Cpu(flag)
                 if flag.startswith('py'):
                     self.python_version = flag[2:]

source/fitz/hyphen.c

@@ -34,13 +34,21 @@ extern const unsigned char _binary_resources_hyphen_hyph_all_zip_end;
 
 #else
 
+#ifdef _M_ARM64
+// Disable embedded hyphen data on ARM64 to avoid linker alignment errors
+#define HYPH_STD NULL, 0
+#define HYPH_ALL NULL, 0
+
+#else
+
 extern const unsigned char _binary_hyph_std_zip[];
 extern const unsigned int _binary_hyph_std_zip_size;
 #define HYPH_STD _binary_hyph_std_zip, _binary_hyph_std_zip_size
 
 extern const unsigned char _binary_hyph_all_zip[];
 extern const unsigned int _binary_hyph_all_zip_size;
 #define HYPH_ALL _binary_hyph_all_zip, _binary_hyph_all_zip_size
+#endif
 
 #endif