4 files changed, 15 insertions, 6 deletions
diff --git a/win/makefile.vc b/win/makefile.vc
index 06a5e11..910890b 100644
--- a/win/makefile.vc
+++ b/win/makefile.vc
@@ -121,7 +121,7 @@ the build instructions.
 #		nodep	 = Turns off compatibility macros to ensure the core
 #			    isn't being built with deprecated functions.
 #
-#	MACHINE=(ALPHA|AMD64|IA64|IX86)
+#	MACHINE=(ARM|AMD64|IA64|IX86)
 #		Set the machine type used for the compiler, linker, and
 #		resource compiler.  This hook is needed to tell the tools
 #		when alternate platforms are requested.  IX86 is the default
@@ -483,9 +483,16 @@ cdebug	= -Zi -Od $(DEBUGFLAGS)
 cdebug	= -Zi -WX $(DEBUGFLAGS)
 !endif
 
+### Common compiler options that are architecture specific
+!if "$(MACHINE)" == "ARM"
+carch = -D_ARM_WINAPI_PARTITION_DESKTOP_SDK_AVAILABLE
+!else
+carch =
+!endif
+
 ### Declarations common to all compiler options
 cwarn = $(WARNINGS) -D _CRT_SECURE_NO_DEPRECATE -D _CRT_NONSTDC_NO_DEPRECATE
-cflags = -nologo -c $(COMPILERFLAGS) $(cwarn) -Fp$(TMP_DIR)^\
+cflags = -nologo -c $(COMPILERFLAGS) $(carch) $(cwarn) -Fp$(TMP_DIR)^\
 
 !if $(MSVCRT)
 !if $(DEBUG) && !$(UNCHECKED)
@@ -1211,6 +1218,8 @@ clean: clean-pkgs
 	@if exist $(WINDIR)\nmakehlp.obj del $(WINDIR)\nmakehlp.obj
 	@echo Cleaning $(WINDIR)\nmakehlp.exe ...
 	@if exist $(WINDIR)\nmakehlp.exe del $(WINDIR)\nmakehlp.exe
+	@echo Cleaning $(WINDIR)\nmhlp-out.txt ...
+	@if exist $(WINDIR)\nmhlp-out.txt del $(WINDIR)\nmhlp-out.txt
 	@echo Cleaning $(WINDIR)\_junk.pch ...
 	@if exist $(WINDIR)\_junk.pch del $(WINDIR)\_junk.pch
 	@echo Cleaning $(WINDIR)\vercl.x ...
diff --git a/win/tclWin32Dll.c b/win/tclWin32Dll.c
index e4adb1d..1d6cb2b 100644
--- a/win/tclWin32Dll.c
+++ b/win/tclWin32Dll.c
@@ -29,7 +29,7 @@ static int platformId;		/* Running under NT, or 95/98? */
  * VC++ 5.x has no 'cpuid' assembler instruction, so we must emulate it
  */
 
-#if defined(_MSC_VER) && (_MSC_VER <= 1100)
+#if defined(_MSC_VER) && (_MSC_VER <= 1100) && defined (_M_IX86)
 #define cpuid	__asm __emit 0fh __asm __emit 0a2h
 #endif
 
@@ -735,7 +735,7 @@ TclWinCPUID(
     __cpuid(regsPtr, index);
     status = TCL_OK;
 
-#   else
+#   elif defined (_M_IX86)
     /*
      * Define a structure in the stack frame to hold the registers.
      */
diff --git a/win/tclWinFile.c b/win/tclWinFile.c
index e61d619..700e3c8 100644
--- a/win/tclWinFile.c
+++ b/win/tclWinFile.c
@@ -828,7 +828,7 @@ tclWinDebugPanic(
     __builtin_trap();
 #elif defined(_WIN64)
     __debugbreak();
-#elif defined(_MSC_VER)
+#elif defined(_MSC_VER) && defined (_M_IX86)
     _asm {int 3}
 #else
     DebugBreak();
diff --git a/win/tclWinPipe.c b/win/tclWinPipe.c
index fe0ed2d..4b372a5 100644
--- a/win/tclWinPipe.c
+++ b/win/tclWinPipe.c
@@ -1479,7 +1479,7 @@ BuildCommandLine(
 	    quote = 1;
 	} else {
 	    int count;
-	    Tcl_UniChar ch;
+	    Tcl_UniChar ch = 0;
 
 	    for (start = arg; *start != '\0'; start += count) {
 		count = TclUtfToUniChar(start, &ch);