rules/extra-packages.mk

   1 # -----------------------------------------------------------------------------
   2 #
   3 # (c) 2010 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 # For each package P marked as "dph" or "extra" in $(TOP)/packages:
  14 #   if $(TOP)/libraries/P exists, then
  15 #      if $(TOP)/libraries/P/ghc-packages exists, then
  16 #         * add each package from $(TOP)/libraries/P/ghc-packages2 to the list of
  17 #           packages.
  18 #           Note: ghc-packages2 might have a different list from
  19 #           ghc-packages, this is to support dph which has some
  20 #           packages that are automatically derived from a single
  21 #           source by the build system).
  22 #         * add $(TOP)/libraries/P to $(BUILD_DIRS)
  23 #           This step is necessary in the case of dph, which has some
  24 #           build system code in libraries/dph/ghc.mk, but
  25 #           libraries/dph is not itself a package.
  26 #      else
  27 #         add P to the list of packages
  28
  29 define extra-packages
  30 $$(foreach p,$$(patsubst libraries/%,%,$$(wildcard $$(shell grep '^[^ #][^ ]* \+\(dph\|extra\) \+[^ ]\+ \+[^ ]\+$$$$' packages | sed 's/ .*//'))),\
  31     $$(if $$(wildcard libraries/$$p/ghc-packages),\
  32         $$(eval BUILD_DIRS += libraries/$$p) \
  33         $$(foreach q,$$(shell cat libraries/$$p/ghc-packages2),$$(eval $$(call extra-package,$$p,$$p/$$q))),\
  34         $$(eval $$(call extra-package,$$p,$$p)))\
  35 )
  36 endef
  37
  38 define extra-package # $1 = package root, $2 = package
  39 $(call trace, extra-package($1,$2))
  40
  41 EXTRA_PACKAGES += $2
  42 $$(eval $$(call addPackage,$2))
  43
  44 endef