diff --git a/hw/xfree86/int10/Makefile.am b/hw/xfree86/int10/Makefile.am
index c059070ec..3a18afb8a 100644
--- a/hw/xfree86/int10/Makefile.am
+++ b/hw/xfree86/int10/Makefile.am
@@ -13,8 +13,12 @@ COMMON_SOURCES = \
 	xf86int10.c \
 	xf86int10module.c
 
+if I386_VIDEO
+I386_VIDEO_CFLAGS = -D_PC
+endif
+
 if INT10_VM86
-AM_CFLAGS = -D_PC -D_VM86_LINUX $(XORG_CFLAGS) $(EXTRA_CFLAGS)
+AM_CFLAGS = $(I386_VIDEO_CFLAGS) -D_VM86_LINUX $(XORG_CFLAGS) $(EXTRA_CFLAGS)
 INCLUDES = $(XORG_INCS)
 libint10_la_SOURCES = \
 	$(COMMON_SOURCES) \
@@ -23,7 +27,8 @@ libint10_la_SOURCES = \
 endif
 
 if INT10_X86EMU
-AM_CFLAGS = -D_X86EMU -DNO_SYS_HEADERS -D_PC $(XORG_CFLAGS) $(EXTRA_CFLAGS)
+AM_CFLAGS = $(I386_VIDEO_CFLAGS) -D_X86EMU -DNO_SYS_HEADERS \
+           $(XORG_CFLAGS) $(EXTRA_CFLAGS)
 INCLUDES = $(XORG_INCS) -I$(srcdir)/../x86emu
 libint10_la_SOURCES = \
 	$(COMMON_SOURCES) \
@@ -33,7 +38,7 @@ libint10_la_SOURCES = \
 endif
 
 if INT10_STUB
-AM_CFLAGS = -D_PC -D_VM86_LINUX $(XORG_CFLAGS) $(EXTRA_CFLAGS)
+AM_CFLAGS = $(I386_VIDEO_CFLAGS) -D_VM86_LINUX $(XORG_CFLAGS) $(EXTRA_CFLAGS)
 libint10_la_SOURCES = stub.c xf86int10module.c
 endif