# -----------------------------------------------------------------------------
#
# (c) 2009 The University of Glasgow
#
# This file is part of the GHC build system.
#
# To understand how the build system works and how to modify it, see
#      http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
#      http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
#
# -----------------------------------------------------------------------------


define hs-suffix-rules-srcdir
# args: $1 = dir,  $2 = distdir, $3 = way, $4 = srcdir

# Preprocessing Haskell source

ifneq "$$(BootingFromHc)" "YES"

$1/$2/build/%.hs : $1/$4/%.ly | $$$$(dir $$$$@)/.
	"$$(HAPPY)" $$($1_$2_$3_ALL_HAPPY_OPTS) $$< -o $$@

$1/$2/build/%.hs : $1/$4/%.y | $$$$(dir $$$$@)/.
	"$$(HAPPY)" $$($1_$2_$3_ALL_HAPPY_OPTS) $$< -o $$@

$1/$2/build/%.hs : $1/$4/%.x | $$$$(dir $$$$@)/.
	"$$(ALEX)" $$($1_$2_$3_ALL_ALEX_OPTS) $$< -o $$@

$1/$2/build/%_hsc.c $1/$2/build/%_hsc.h $1/$2/build/%.hs : $1/$4/%.hsc $$(HSC2HS_INPLACE) | $$$$(dir $$$$@)/.
	"$$(HSC2HS_INPLACE)" $$($1_$2_$3_ALL_HSC2HS_OPTS) $$< -o $$@

# Compiling Haskell source

$1/$2/build/%.$$($3_osuf) : $1/$4/%.hs $$($1_$2_HC_DEP)
	"$$($1_$2_HC)" $$($1_$2_$3_ALL_HC_OPTS) -c $$< -o $$@

$1/$2/build/%.$$($3_osuf) : $1/$4/%.lhs $$($1_$2_HC_DEP)
	"$$($1_$2_HC)" $$($1_$2_$3_ALL_HC_OPTS) -c $$< -o $$@

$1/$2/build/%.$$($3_hcsuf) : $1/$4/%.hs $$($1_$2_HC_DEP)
	"$$($1_$2_HC)" $$($1_$2_$3_ALL_HC_OPTS) -C $$< -o $$@

$1/$2/build/%.$$($3_hcsuf) : $1/$4/%.lhs $$($1_$2_HC_DEP)
	"$$($1_$2_HC)" $$($1_$2_$3_ALL_HC_OPTS) -C $$< -o $$@

endif

# XXX: for some reason these get used in preference to the direct
# .hs->.o rule, I don't know why --SDM

$1/$2/build/%.$$($3_osuf) : $1/$4/%.hc includes/ghcautoconf.h includes/ghcplatform.h | $$$$(dir $$$$@)/.
	"$$(CC)" $$($1_$2_$3_ALL_CC_OPTS) -Iincludes -x c -c $$< -o $$@

$1/$2/build/%.$$($3_osuf) : $1/$2/build/%.hc includes/ghcautoconf.h includes/ghcplatform.h
	"$$(CC)" $$($1_$2_$3_ALL_CC_OPTS) -Iincludes -x c -c $$< -o $$@

# $1/$2/build/%.$$($3_osuf) : $1/$2/build/%.$$($3_way_)hc
# 	"$$($1_$2_HC)" $$($1_$2_$3_ALL_HC_OPTS) -c $$< -o $$@
#
# $1/$2/build/%.$$($3_osuf) : $1/$2/build/%.hc
# 	"$$($1_$2_HC)" $$($1_$2_$3_ALL_HC_OPTS) -c $$< -o $$@
#
# $1/$2/build/%.$$($3_way_)s : $1/$2/build/%.$$($3_way_)hc
# 	"$$($1_$2_HC)" $$($1_$2_$3_ALL_HC_OPTS) -S $$< -o $$@

# Now the rules for hs-boot files.

$1/$2/build/%.hs-boot : $1/$4/%.hs-boot
	"$$(CP)" $$< $$@

$1/$2/build/%.lhs-boot : $1/$4/%.lhs-boot
	"$$(CP)" $$< $$@

$1/$2/build/%.$$($3_way_)o-boot : $1/$4/%.hs-boot $$($1_$2_HC_DEP)
	"$$($1_$2_HC)" $$($1_$2_$3_ALL_HC_OPTS) -c $$< -o $$@

$1/$2/build/%.$$($3_way_)o-boot : $1/$4/%.lhs-boot $$($1_$2_HC_DEP)
	"$$($1_$2_HC)" $$($1_$2_$3_ALL_HC_OPTS) -c $$< -o $$@

ifneq "$$(BootingFromHc)" "YES"
# stubs are automatically generated and compiled by GHC

$1/$2/build/%_stub.$$($3_osuf): $1/$2/build/%.$$($3_osuf)
	@:
endif

endef