# compile it twice.
# So we figure out the sources in three stages: first figure out
-# what's in the current directory. Then figure out all the "derived"
-# sources (eg. A.hsc generates A.hs and A_hsc.c), and finally put all
-# these together and remove duplicates (GNU make's handy sort function
-# does the duplicate removing).
+# what's in the current directory (this is $(PRE_SRCS)). Then figure
+# out all the "derived" sources (eg. A.hsc generates A.hs and
+# A_hsc.c), and finally put all these together and remove duplicates
+# (GNU make's handy sort function does the duplicate removing).
#
# BOOT_SRCS: list of machine generated Haskell modules.
# HS_SRCS: list of Haskell modules you want to compile.
PRE_SRCS = $(wildcard *.lhs *.hs *.c *.prl *.lprl *.lit *.verb *.hsc)
-HSC_SRCS = $(filter %.hsc, $(PRE_SRCS))
-HSC_HS_SRCS = $(patsubst %.hsc,%.hs,$(HSC_SRCS))
-HSC_C_SRCS = $(patsubst %.hsc,%_hsc.c,$(HSC_SRCS))
-HSC_C_OBJS = $(patsubst %.hsc,%_hsc.o,$(HSC_SRCS))
+HSC_SRCS = $(filter %.hsc, $(PRE_SRCS))
+DERIVED_SRCS = $(patsubst %.hsc, %.hs, $(HSC_SRCS)) \
+ $(patsubst %.hsc, %_hsc.c, $(HSC_SRCS)) \
+ $(patsubst %.hsc, %_hsc.h, $(HSC_SRCS))
-SRCS = $(sort $(PRE_SRCS) $(HSC_HS_SRCS) $(HSC_C_SRCS))
+# EXCLUDED_SRCS can be set in the Makefile, otherwise it defaults to empty.
+EXCLUDED_DERIVED_SRCS = $(patsubst %.hsc,%.hs %_hsc.c, \
+ $(filter %.hsc, $(EXCLUDED_SRCS)))
+CLOSED_EXCLUDED_SRCS = $(sort $(EXCLUDED_SRCS) $(EXCLUDED_DERIVED_SRCS))
+
+SRCS = $(filter-out $(CLOSED_EXCLUDED_SRCS), \
+ $(sort $(PRE_SRCS) $(DERIVED_SRCS)))
HS_SRCS = $(filter %.lhs %.hs %.hc,$(sort $(SRCS) $(BOOT_SRCS)))
HS_OBJS = $(addsuffix .$(way_)o,$(basename $(HS_SRCS)))
HS_SS = $(addsuffix .$(way_)s,$(basename $(HS_SRCS)))
HS_IFACES = $(addsuffix .$(way_)hi,$(basename $(HS_SRCS)))
+HSC_C_OBJS = $(patsubst %_hsc.c,%_hsc.o,$(SRCS))
+
C_SRCS = $(filter %.c,$(SRCS))
C_OBJS = $(addsuffix .$(way_)o,$(basename $(C_SRCS)))
MOSTLY_CLEAN_FILES += $(HS_OBJS) $(C_OBJS)
CLEAN_FILES += $(HS_PROG) $(C_PROG) $(SCRIPT_PROG) $(SCRIPT_LINK) \
$(PROG) $(LIBRARY) $(HS_IFACES) $(HS_SS) a.out \
- $(patsubst %.hsc,%.hs,$(HSC_SRCS)) \
- $(patsubst %.hsc,%_hsc.c,$(HSC_SRCS)) \
- $(patsubst %.hsc,%_hsc.h,$(HSC_SRCS))
+ $(DERIVED_SRCS)
# Don't clean the .hc files if we're bootstrapping
ifneq "$(BootingFromHc)" "YES"