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 define build-dependencies # args: $1 = dir, $2 = distdir
  14
  15 $1_$2_depfile_haskell = $$($1_$2_depfile_base).haskell
  16 $1_$2_depfile_c_asm = $$($1_$2_depfile_base).c_asm
  17
  18 $1_$2_C_FILES_DEPS = $$(filter-out $$($1_$2_C_FILES_NODEPS),$$($1_$2_C_FILES))
  19
  20 ifeq "$$($1_$2_ghc_ge_609)" "YES"
  21 $1_$2_MKDEPENDHS_FLAGS = -include-pkg-deps -dep-makefile $$($1_$2_depfile_haskell).tmp $$(foreach way,$$(filter-out v,$$($1_$2_WAYS)),-dep-suffix $$(way))
  22 else
  23 $1_$2_MKDEPENDHS_FLAGS = -optdep--include-pkg-deps -optdep-f -optdep$$($1_$2_depfile_haskell).tmp $$(foreach way,$$(filter-out v,$$($1_$2_WAYS)),-optdep-s -optdep$$(way))
  24 endif
  25
  26 ifneq "$$($1_$2_NO_BUILD_DEPS)" "YES"
  27
  28 $$($1_$2_depfile_haskell) : $$($1_$2_HS_SRCS) $$($1_$2_HS_BOOT_SRCS) $$($1_$2_HC_MK_DEPEND_DEP) | $$$$(dir $$$$@)/.
  29         "$$(RM)" $$(RM_OPTS) $$@.tmp
  30         touch $$@.tmp
  31 ifneq "$$($1_$2_HS_SRCS)" ""
  32         "$$($1_$2_HC_MK_DEPEND)" -M $$($1_$2_MKDEPENDHS_FLAGS) \
  33             $$(filter-out -split-objs, $$($1_$2_v_ALL_HC_OPTS)) \
  34             $$($1_$2_HS_SRCS)
  35 endif
  36         echo "$1_$2_depfile_haskell_EXISTS = YES" >> $$@.tmp
  37 ifneq "$$($1_$2_SLASH_MODS)" ""
  38         for dir in $$(sort $$(foreach mod,$$($1_$2_SLASH_MODS),$1/$2/build/$$(dir $$(mod)))); do \
  39                 if test ! -d $$$$dir; then mkdir -p $$$$dir; fi \
  40         done
  41 endif
  42         mv $$@.tmp $$@
  43
  44 $$($1_$2_depfile_c_asm) : $$($1_$2_C_FILES_DEPS) $$($1_$2_S_FILES) | $$$$(dir $$$$@)/.
  45         "$$(RM)" $$(RM_OPTS) $$@.tmp
  46         touch $$@.tmp
  47 ifneq "$$(strip $$($1_$2_C_FILES_DEPS)$$($1_$2_S_FILES))" ""
  48         $$(foreach f,$$($1_$2_C_FILES_DEPS) $$($1_$2_S_FILES), \
  49           $$(foreach w,$$($1_$2_WAYS), \
  50             $$(call addCFileDeps,$1,$2,$$($1_$2_depfile_c_asm),$$f,$$w)))
  51         "$$(RM)" $$(RM_OPTS) $$@.bit
  52 endif
  53         echo "$1_$2_depfile_c_asm_EXISTS = YES" >> $$@.tmp
  54         mv $$@.tmp $$@
  55
  56 endif # $1_$2_NO_BUILD_DEPS
  57
  58 # Note sed magic above: mkdependC can't do -odir stuff, so we have to
  59 # munge the dependencies it generates to refer to the correct targets.
  60
  61 # Seems as good a place as any to attach the unlit dependency
  62 $$($1_$2_depfile_haskell) : $$(UNLIT)
  63
  64 ifneq "$$(NO_INCLUDE_DEPS)" "YES"
  65 include $$($1_$2_depfile_haskell)
  66 include $$($1_$2_depfile_c_asm)
  67 else
  68 ifeq "$$(DEBUG)" "YES"
  69 $$(warning not building dependencies in $1)
  70 endif
  71 endif
  72
  73 endef
  74
  75 # This comment is outside the "define addCFileDeps" as that definition
  76 # is a list of command lines, and if it is inside it then we pass this
  77 # comment to the shell every time we call the definition.
  78 # $1 = dir
  79 # $2 = distdir
  80 # $3 = depfile
  81 # $4 = file
  82 # $5 = way
  83 # The formatting of this definition (e.g. the blank line above) is
  84 # important, in order to get make to generate the right makefile code.
  85 define addCFileDeps
  86
  87         $(CPP) $($1_$2_MKDEPENDC_OPTS) $($1_$2_$5_ALL_CC_OPTS) $($(basename $4)_CC_OPTS) -MM $4 -MF $3.bit
  88         sed -e "1s|\.o|\.$($5_osuf)|" -e "1s|^|$(dir $4)|" -e "1s|$1/|$1/$2/build/|" -e "s|$(TOP)/||g" -e "s|$2/build/$2/build|$2/build|g" $3.bit >> $3.tmp
  89 endef
  90