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-rw-r--r--src/Make_mvc.mak7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index 9bb048703..f9d211d34 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -167,13 +167,16 @@ OBJDIR = $(OBJDIR)Z
OBJDIR = $(OBJDIR)d
!endif
-# Win32.mak requires that CPU be set appropriately
+# Win32.mak requires that CPU be set appropriately.
+# To cross-compile for Win64, set CPU=AMD64 or CPU=IA64.
!ifdef PROCESSOR_ARCHITECTURE
# We're on Windows NT or using VC 6+
+! ifndef CPU
CPU = $(PROCESSOR_ARCHITECTURE)
-! if ("$(CPU)" == "x86") || ("$(CPU)" == "X86")
+! if ("$(CPU)" == "x86") || ("$(CPU)" == "X86")
CPU = i386
+! endif
! endif
!else # !PROCESSOR_ARCHITECTURE
# We're on Windows 95