ArchSupportsNCG=$(strip $(patsubst $(HostArch_CPP), YES, $(findstring $(HostArch_CPP), i386 x86_64 powerpc)))
OsSupportsNCG=$(strip $(patsubst $(HostOS_CPP), YES, $(patsubst aix,,$(HostOS_CPP))))
-ifeq "$(OsSupportsNCG)$(ArchSupportsNCG)$(GhcUnregisterised)" "YESYESNO"
-GhcWithNativeCodeGen=YES
-else
-GhcWithNativeCodeGen=NO
-endif
+# lazy test, because $(GhcUnregisterised) might be set in build.mk later.
+GhcWithNativeCodeGen=$(strip\
+ $(if $(filter YESYESNO,\
+ $(OsSupportsNCG)$(ArchSupportsNCG)$(GhcUnregisterised)),YES,NO))
# Include support for generating Java
GhcWithJavaGen=NO
# includes/SMP.h
ArchSupportsSMP=$(strip $(patsubst $(HostArch_CPP), YES, $(findstring $(HostArch_CPP), i386 x86_64 sparc powerpc)))
-ifeq "$(ArchSupportsSMP)$(GhcUnregisterised)" "YESNO"
-GhcWithSMP=YES
-else
-GhcWithSMP=NO
-endif
+# lazy test, because $(GhcUnregisterised) might be set in build.mk later.
+GhcWithSMP=$(strip $(if $(filter YESNO, $(ArchSupportsSMP)$(GhcUnregisterised)),YES,NO))
# Whether to include GHCi in the compiler. Depends on whether the RTS linker
# has support for this OS/ARCH combination.
# Don't use -split-objs in in GhcLibHcOpts, because the build
# system needs to do other special magic if you are
# doing object-file splitting
-ifneq "$(findstring $(HostArch_CPP), i386 x86_64 powerpc sparc)" ""
-SplitObjs=YES
-else
-SplitObjs=NO
-endif
-# Don't split object files for libs if we're building DLLs, or booting from
-# .hc files.
-ifeq "$(DLLized)" "YES"
-SplitObjs=NO
-endif
-ifeq "$(BootingFromHc)" "YES"
-SplitObjs=NO
-endif
-ifeq "$(GhcUnregisterised)" "YES"
-SplitObjs=NO
-endif
-ifeq "$(TargetArch_CPP)" "ia64"
-SplitObjs=NO
-endif
+# lazy test, so that $(GhcUnregisterised) can be set in build.mk
+SplitObjs=$(strip $(if $(filter $(TargetArch_CPP),i386 x86_64 powerpc sparc),\
+ $(if $(filter YES,$(BootingFromHC)),\
+ NO,\
+ $(if $(filter NO,$(GhcUnregisterised)),\
+ YES,\
+ NO)),\
+ NO))
# Math library
LIBM=@LIBM@