[project @ 2001-07-23 22:56:44 by ken]

[ghc-hetmet.git] / mk / paths.mk

diff --git a/mk/paths.mk b/mk/paths.mk
index 4485af1..fd128ae 100644 (file)
--- a/mk/paths.mk
+++ b/mk/paths.mk
@@ -85,8 +85,19 @@ INSTALL_DIR     = $(FPTOOLS_TOP)/glafp-utils/mkdirhier/mkdirhier
 #   OBJS - object files (possibly prefixed).
 #
 #   PROG - name of final executable
-#
-#
+
+# We attempt to automatically devine the list of sources $(SRCS) to
+# compile by looking in the current directory.  This is complicated by
+# the fact that a .hsc file gives rise to a .hs file (which needs to
+# be automatically included in $(SRCS)), but the .hs file might
+# already be present in the current directory and we don't want to
+# compile it twice.
+
+# So we figure out the sources in three stages: first figure out
+# 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.
@@ -97,13 +108,25 @@ INSTALL_DIR     = $(FPTOOLS_TOP)/glafp-utils/mkdirhier/mkdirhier
 #             (caveat: assuming no funny use of -hisuf and that
 #               file name and module name match)
 
-SRCS     = $(sort $(wildcard *.lhs *.hs *.c *.prl *.lprl *.lit *.verb) \
-                  $(HSC_HS_SRCS) $(HSC_C_SRCS) )
+PRE_SRCS    = $(wildcard *.lhs *.hs *.c *.prl *.lprl *.lit *.verb *.hsc)
 
-HSC_SRCS    = $(wildcard *.hsc)
-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))
+
+# EXCLUDED_SRCS can be set in the Makefile, otherwise it defaults to empty.
+EXCLUDED_HSC_SRCS     = $(filter %.hsc, $(EXCLUDED_SRCS))
+EXCLUDED_DERIVED_SRCS = $(patsubst %.hsc, %.hs, $(EXCLUDED_HSC_SRCS)) \
+                       $(patsubst %.hsc, %_hsc.h, $(EXCLUDED_HSC_SRCS)) \
+                       $(patsubst %.hsc, %_hsc.c, $(HSC_SRCS))
+# Exclude _hsc.c files; they get built as part of the cbits library,
+# not part of the main library
+
+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)))
@@ -111,6 +134,8 @@ HS_HCS      = $(addsuffix .$(way_)hc,$(basename $(HS_SRCS)))
 HS_SS       = $(addsuffix .$(way_)s,$(basename $(HS_SRCS)))
 HS_IFACES   = $(addsuffix .$(way_)hi,$(basename $(HS_SRCS)))
 
+HSC_C_OBJS  = $(addsuffix _hsc.$(way_)o,$(basename $(filter %.hsc,$(SRCS))))
+
 C_SRCS      = $(filter %.c,$(SRCS)) 
 C_OBJS      = $(addsuffix .$(way_)o,$(basename $(C_SRCS)))
 
@@ -172,9 +197,7 @@ TAGS_C_SRCS=$(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"
@@ -190,7 +213,7 @@ MAINTAINER_CLEAN_FILES += $(BOOT_SRCS)
 MOSTLY_CLEAN_FILES += \
  *.CKP *.ln *.BAK *.bak .*.bak *.o *core a.out errs ,* *.a .emacs_*  \
  tags TAGS *.ind *.ilg *.idx *.idx-prev *.aux *.aux-prev *.dvi *.log \
- *.toc *.lot *.lof *.blg *.cb *_stub.c *_stub.h *.raw_s
+ *.toc *.lot *.lof *.blg *.cb *_stub.c *_stub.h *.raw_s *.a.list
 
 #------------------------------------------------------------------
 #