rules/build-dependencies.mk

   1 # -----------------------------------------------------------------------------
   2 #
   3 # (c) 2009 The University of Glasgow
   4 #
   5 # This file is part of the GHC build system.
   6 #
   7 # To understand how the build system works and how to modify it, see
   8 #      http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
   9 #      http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
  10 #
  11 # -----------------------------------------------------------------------------
  12
  13
  14 define build-dependencies # args: $1 = dir, $2 = distdir
  15
  16 ifeq "$$($1_$2_ghc_ge_609)" "YES"
  17 $1_$2_MKDEPENDHS_FLAGS = -include-pkg-deps -dep-makefile $$($1_$2_depfile) $$(foreach way,$$(filter-out v,$$($1_$2_WAYS)),-dep-suffix $$(way))
  18 else
  19 $1_$2_MKDEPENDHS_FLAGS = -optdep--include-pkg-deps -optdep-f -optdep$$($1_$2_depfile) $$(foreach way,$$(filter-out v,$$($1_$2_WAYS)),-optdep-s -optdep$$(way))
  20 endif
  21
  22 ifneq "$$($1_$2_NO_BUILD_DEPS)" "YES"
  23
  24 $$($1_$2_depfile) : $$(MKDIRHIER) $$(MKDEPENDC) $$($1_$2_HS_SRCS) $$($1_$2_HS_BOOT_SRCS) $$($1_$2_HC_MK_DEPEND_DEP) $$($1_$2_C_FILES) $$($1_$2_S_FILES)
  25         $$(MKDIRHIER) $1/$2/build
  26         $$(RM) $$@ $$@.tmp
  27         touch $$@.tmp
  28 ifneq "$$($1_$2_C_SRCS)$$($1_$2_S_SRCS)" ""
  29         $$(MKDEPENDC) -f $$($1_$2_depfile).tmp $$($1_MKDEPENDC_OPTS) $$(foreach way,$$($1_WAYS),-s $$(way)) -- $$($1_$2_v_ALL_CC_OPTS) -- $$($1_$2_C_FILES) $$($1_$2_S_FILES) || ( $$(RM) $$@; exit 1 )
  30         sed -e "s|$1/\([^ :]*o[ :]\)|$1/$2/build/\1|g" -e "s|$(TOP)/||" <$$($1_$2_depfile).tmp >$$($1_$2_depfile)
  31 endif
  32 ifneq "$$($1_$2_HS_SRCS)" ""
  33         $$($1_$2_HC_MK_DEPEND) -M $$($1_$2_MKDEPENDHS_FLAGS) \
  34             $$(filter-out -split-objs, $$($1_$2_v_ALL_HC_OPTS)) \
  35             $$($1_$2_HS_SRCS) || ( $$(RM) $$@; exit 1 )
  36 endif
  37         echo "$1_$2_depfile_EXISTS = YES" >> $$@
  38 ifneq "$$($1_$2_SLASH_MODS)" ""
  39         for dir in $$(sort $$(foreach mod,$$($1_$2_SLASH_MODS),$1/$2/build/$$(dir $$(mod)))); do \
  40                 if test ! -d $$$$dir; then mkdir -p $$$$dir; fi \
  41         done
  42 endif
  43
  44 endif # $1_$2_NO_BUILD_DEPS
  45
  46 # Note sed magic above: mkdependC can't do -odir stuff, so we have to
  47 # munge the dependencies it generates to refer to the correct targets.
  48
  49 # Seems as good a place as any to attach the unlit dependency
  50 $$($1_$2_depfile) : $$(UNLIT)
  51
  52 ifneq "$$(NO_INCLUDE_DEPS)" "YES"
  53 include $$($1_$2_depfile)
  54 else
  55 ifeq "$$(DEBUG)" "YES"
  56 $$(warning not building dependencies in $1)
  57 endif
  58 endif
  59
  60 endef