extra-lib.mk

   1 # This file is included several times in a row, once
   2 # for each element of $(extra-libs).  $(extra-libs-left)
   3 # is initialized first to $(extra-libs) so that with each
   4 # inclusion, we advance $(lib) to the next library name (e.g. libfoo).
   5 # The variable $($(lib)-routines) defines the list of modules
   6 # to be included in that library.
   7
   8 lib := $(firstword $(extra-libs-left))
   9 extra-libs-left := $(filter-out $(lib),$(extra-libs-left))
  10
  11 object-suffixes-$(lib) := $(filter-out $($(lib)-inhibit-o),$(object-suffixes))
  12
  13 ifneq (,$(object-suffixes-$(lib)))
  14
  15 # Make sure these are simply-expanded variables before we append to them,
  16 # since we want the expressions we append to be expanded right now.
  17 install-lib := $(install-lib)
  18 extra-objs := $(extra-objs)
  19
  20 # Add each flavor of library to the lists of things to build and install.
  21 install-lib += $(foreach o,$(object-suffixes-$(lib)),$(lib:lib%=$(libtype$o)))
  22 extra-objs += $(foreach o,$(object-suffixes-$(lib):.os=),\
  23                         $(patsubst %,%$o,$(filter-out \
  24                                            $($(lib)-shared-only-routines),\
  25                                            $($(lib)-routines))))
  26 ifneq (,$(filter .os,$(object-suffixes-$(lib))))
  27 extra-objs += $($(lib)-routines:=.os)
  28 endif
  29 alltypes-$(lib) := $(foreach o,$(object-suffixes-$(lib)),\
  30                              $(objpfx)$(patsubst %,$(libtype$o),\
  31                              $(lib:lib%=%)))
  32
  33 ifeq (,$(filter $(lib),$(extra-libs-others)))
  34 lib-noranlib: $(alltypes-$(lib))
  35 ifeq (yes,$(build-shared))
  36 lib-noranlib: $(objpfx)$(lib).so$($(lib).so-version)
  37 endif
  38 else
  39 others: $(alltypes-$(lib))
  40 endif
  41
  42 # The linked shared library is never a dependent of lib-noranlib,
  43 # because linking it will depend on libc.so already being built.
  44 ifneq (,$(filter .os,$(object-suffixes-$(lib))))
  45 others: $(objpfx)$(lib).so$($(lib).so-version)
  46 endif
  47
  48
  49 # Use o-iterator.mk to generate a rule for each flavor of library.
  50 ifneq (,$(filter-out .os,$(object-suffixes-$(lib))))
  51 define o-iterator-doit
  52 $(objpfx)$(patsubst %,$(libtype$o),$(lib:lib%=%)): \
  53   $(patsubst %,$(objpfx)%$o,\
  54              $(filter-out $($(lib)-shared-only-routines),\
  55                           $($(lib)-routines))); \
  56         $$(build-extra-lib)
  57 endef
  58 object-suffixes-left = $(object-suffixes-$(lib):.os=)
  59 include $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-$(lib):.os=))
  60 endif
  61
  62 ifneq (,$(filter .os,$(object-suffixes-$(lib))))
  63 $(objpfx)$(patsubst %,$(libtype.os),$(lib:lib%=%)): \
  64   $($(lib)-routines:%=$(objpfx)%.os)
  65         $(build-extra-lib)
  66 endif
  67
  68 ifeq ($(versioning),yes)
  69 # Add the version script to the dependencies of the shared library.
  70 $(objpfx)$(lib).so: $(firstword $($(lib)-map) \
  71                                 $(addprefix $(common-objpfx), \
  72                                             $(filter $(lib).map, \
  73                                                      $(version-maps))))
  74 endif
  75
  76 endif