Rules

   1 # Copyright (C) 1991-2000,2002,2003, 2004, 2005 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   4 # The GNU C Library is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU Lesser General Public
   6 # License as published by the Free Software Foundation; either
   7 # version 2.1 of the License, or (at your option) any later version.
   8
   9 # The GNU C Library is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # Lesser General Public License for more details.
  13
  14 # You should have received a copy of the GNU Lesser General Public
  15 # License along with the GNU C Library; if not, write to the Free
  16 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17 # 02111-1307 USA.
  18
  19 #
  20 #       Rules for making a subdirectory in the GNU C library.
  21 #       Each subdirectory Makefile defines some variables and includes this.
  22 #
  23 ifneq (,)
  24 This makefile requires GNU Make.
  25 endif
  26
  27 all: # Don't let the default goal come from Makeconfig.
  28
  29 include ../Makeconfig
  30
  31 ifndef  subdir
  32 Each subdirectory makefile must define the `subdir' variable.
  33 endif
  34 # This ` unconfuses emacs.
  35 # This is benign and useless in GNU make before 3.63.
  36 export subdir := $(subdir)
  37 \f
  38 # This is the default target; it makes the library and auxiliary programs.
  39 .PHONY: all
  40 all: objs lib others
  41
  42 ifeq ($(build-programs),yes)
  43 others: $(addprefix $(objpfx),$(extra-objs) \
  44                               $(install-lib) \
  45                               $(install-bin) $(install-bin-script) \
  46                               $(install-rootsbin) $(install-sbin))
  47 else
  48 others: $(addprefix $(objpfx),$(extra-objs) \
  49                               $(install-lib))
  50 endif
  51
  52 ifneq   "$(findstring env,$(origin headers))" ""
  53 headers :=
  54 endif
  55
  56 ifneq   "$(findstring env,$(origin generated))" ""
  57 generated :=
  58 endif
  59
  60 ifneq   "$(findstring env,$(origin common-generated))" ""
  61 common-generated :=
  62 endif
  63
  64 # See below.  This must be set before Makerules processes it.
  65 before-compile += $(common-objpfx)bits/stdio_lim.h
  66
  67 include ../Makerules
  68
  69 .PHONY: subdir_lib
  70 subdir_lib: lib-noranlib
  71
  72 # Some subdirs need to install a dummy library.
  73 # They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
  74 dep-dummy-lib = $(common-objpfx)dummy.o
  75 define make-dummy-lib
  76 $(AR) cr$(verbose) $@ $<
  77 endef
  78
  79 $(common-objpfx)dummy.c:
  80         rm -f $@
  81         (echo 'extern void __dummy__ (void);'; \
  82          echo 'void __dummy__ (void) { }') > $@
  83 common-generated += dummy.o dummy.c
  84 \f
  85 # This makes all the auxiliary and test programs.
  86
  87 .PHONY: others tests
  88 ifeq ($(build-programs),yes)
  89 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
  90 else
  91 others: $(addprefix $(objpfx),$(extra-objs))
  92 endif
  93 ifeq ($(cross-compiling),yes)
  94 tests: $(addprefix $(objpfx),$(tests) $(test-srcs))
  95 xtests: tests
  96 else
  97 ifeq ($(build-bounded),yes)
  98 tests-bp.out = $(tests:%=$(objpfx)%-bp.out)
  99 xtests-bp.out = $(xtests:%=$(objpfx)%-bp.out)
 100 endif
 101 tests: $(tests:%=$(objpfx)%.out) $(tests-bp.out)
 102 xtests: tests $(xtests:%=$(objpfx)%.out) $(xtests-bp.out)
 103 endif
 104
 105 ifeq ($(build-programs),yes)
 106 binaries-all = $(others) $(sysdep-others) $(tests) $(xtests) $(test-srcs)
 107 binaries-static = $(others-static) $(tests-static) $(xtests-static)
 108 else
 109 binaries-all = $(tests) $(xtests) $(test-srcs)
 110 binaries-static =
 111 endif
 112
 113 binaries-shared = $(filter-out $(binaries-static), $(binaries-all))
 114
 115 ifneq "$(strip $(binaries-shared))" ""
 116 $(addprefix $(objpfx),$(binaries-shared)): %: %.o \
 117   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 118   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 119         $(+link)
 120 endif
 121
 122 ifneq "$(strip $(binaries-static))" ""
 123 $(addprefix $(objpfx),$(binaries-static)): %: %.o \
 124   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 125   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 126         $(+link-static)
 127 endif
 128
 129 ifeq ($(build-bounded),yes)
 130 binaries-bounded = $(addsuffix -bp,$(tests) $(xtests) $(test-srcs))
 131 $(addprefix $(objpfx),$(binaries-bounded)): %-bp: %.ob \
 132   $(sort $(filter $(common-objpfx)lib%,$(link-libc-bounded))) \
 133   $(addprefix $(csu-objpfx),start.ob) $(+preinit) $(+postinit)
 134         $(+link-bounded)
 135 endif
 136
 137 ifneq "$(strip $(tests) $(xtests) $(test-srcs))" ""
 138 # These are the implicit rules for making test outputs
 139 # from the test programs and whatever input files are present.
 140
 141 make-test-out = GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
 142                 $($*-ENV) $(built-program-cmd) $($*-ARGS)
 143 $(objpfx)%-bp.out: %.input $(objpfx)%-bp
 144         $(make-test-out) > $@ < $(word 1,$^)
 145 $(objpfx)%.out: %.input $(objpfx)%
 146         $(make-test-out) > $@ < $(word 1,$^)
 147 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 148         $(make-test-out) > $@
 149
 150 endif   # tests
 151 \f
 152 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 153         subdir_clean subdir_mostlyclean subdir_testclean
 154 subdir_mostlyclean: mostlyclean
 155 subdir_clean: clean
 156 subdir_distclean: distclean
 157 subdir_realclean: realclean
 158 subdir_testclean: do-tests-clean
 159 realclean: distclean
 160 distclean: clean
 161
 162 # We want to install everything except the library itself, but update all
 163 # our portions of the library because the parent make will install it later
 164 # (likewise the stubs file).
 165 .PHONY: subdir_install
 166 subdir_install: install-no-libc.a lib-noranlib stubs
 167
 168 .PHONY: subdir_objs subdir_stubs subdir_TAGS
 169 subdir_objs: objs
 170 subdir_stubs: stubs
 171 subdir_TAGS: TAGS
 172
 173 # Target required by the Hurd to ensure that all the MiG-generated
 174 # headers are in place before building a subdirectory.
 175 .PHONY: before-compile
 176 before-compile: $(before-compile)
 177
 178 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 179         $(compile-command.c)
 180
 181 # Local Variables:
 182 # mode: makefile
 183 # End: