Rules

   1 # Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 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 Library General Public License as
   6 # published by the Free Software Foundation; either version 2 of the
   7 # 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 # Library General Public License for more details.
  13
  14 # You should have received a copy of the GNU Library General Public
  15 # License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16 # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17 # Boston, MA 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) $(install-bin) \
  45                               $(install-rootsbin) $(install-sbin))
  46 else
  47 others: $(addprefix $(objpfx),$(extra-objs) \
  48                               $(install-lib))
  49 endif
  50
  51 ifneq   "$(findstring env,$(origin headers))" ""
  52 headers :=
  53 endif
  54
  55 ifneq   "$(findstring env,$(origin generated))" ""
  56 generated :=
  57 endif
  58
  59 ifneq   "$(findstring env,$(origin common-generated))" ""
  60 common-generated :=
  61 endif
  62
  63 include ../Makerules
  64
  65 .PHONY: subdir_lib
  66 subdir_lib: lib-noranlib
  67
  68 # Some subdirs need to install a dummy library.
  69 # They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
  70 dep-dummy-lib = $(common-objpfx)dummy.o
  71 define make-dummy-lib
  72 $(AR) cr$(verbose) $@ $<
  73 endef
  74
  75 $(common-objpfx)dummy.c:
  76         rm -f $@
  77         echo 'void __dummy__ (void) { }' > $@
  78 $(common-objpfx)empty.c:
  79         cp -f /dev/null $@
  80 common-generated += dummy.o dummy.c empty.c \
  81                     $(addprefix empty,$(object-suffixes))
  82 \f
  83 # This makes all the auxiliary and test programs.
  84
  85 .PHONY: others tests
  86 ifeq ($(build-programs),yes)
  87 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
  88 else
  89 others: $(addprefix $(objpfx),$(extra-objs))
  90 endif
  91 ifeq ($(cross-compiling),yes)
  92 tests: $(addprefix $(objpfx),$(tests) $(test-srcs))
  93 ifeq ($(build-static),yes)
  94 tests: $(addprefix $(objpfx),$(tests-static))
  95 endif
  96 else
  97 tests: $(tests:%=$(objpfx)%.out)
  98 ifeq ($(build-static),yes)
  99 tests: $(tests-static:%=$(objpfx)%.sout)
 100 endif
 101 endif
 102
 103 ifeq ($(build-programs),yes)
 104 binaries-all = $(others) $(sysdep-others) $(tests) $(test-srcs)
 105 binaries-static = $(others-static) $(tests-static) $(test-srcs-static)
 106 else
 107 binaries-all = $(tests) $(test-srcs)
 108 binaries-static = $(tests-static) $(test-srcs-static)
 109 endif
 110
 111 binaries-shared = $(filter-out $(binaries-static), $(binaries-all))
 112
 113 ifneq "$(strip $(binaries-shared))" ""
 114 $(addprefix $(objpfx),$(binaries-shared)): %: %.o \
 115   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 116   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 117         $(+link)
 118 endif
 119
 120 ifneq "$(strip $(binaries-static))" ""
 121 $(addprefix $(objpfx),$(binaries-static)): %: %.o \
 122   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 123   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 124         $(+link-static)
 125 endif
 126
 127 ifneq "$(strip $(tests) $(test-srcs))" ""
 128 # These are the implicit rules for making test outputs
 129 # from the test programs and whatever input files are present.
 130 $(objpfx)%.out: %.args $(objpfx)% %.input
 131         $($*-ENV) $(built-program-cmd) `cat $(word 1,$^)` < $(word 3,$^) > $@
 132 $(objpfx)%.out: %.args $(objpfx)%
 133         $($*-ENV) $(built-program-cmd) `cat $(word 1,$^)` > $@
 134 $(objpfx)%.out: %.input $(objpfx)%
 135         $($*-ENV) $(built-program-cmd) < $(word 1,$^) > $@
 136 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 137         $($*-ENV) $(built-program-cmd) > $@
 138 endif   # tests
 139
 140 ifneq "$(strip $(tests-static) $(test-static-srcs))" ""
 141 # These are the implicit rules for making test outputs
 142 # from the test programs and whatever input files are present.
 143 $(objpfx)%.sout: %.args $(objpfx)% %.input
 144         $($*-ENV) $(built-program-file) `cat $(word 1,$^)` < $(word 3,$^) > $@
 145 $(objpfx)%.sout: %.args $(objpfx)%
 146         $($*-ENV) $(built-program-file) `cat $(word 1,$^)` > $@
 147 $(objpfx)%.sout: %.input $(objpfx)%
 148         $($*-ENV) $(built-program-file) < $(word 1,$^) > $@
 149 $(objpfx)%.sout: /dev/null $(objpfx)%   # Make it 2nd arg for canned sequence.
 150         $($*-ENV) $(built-program-file) > $@
 151 endif   # tests
 152 \f
 153 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 154         subdir_clean subdir_mostlyclean
 155 subdir_mostlyclean: mostlyclean
 156 subdir_clean: clean
 157 subdir_distclean: distclean
 158 subdir_realclean: realclean
 159 realclean: distclean
 160 distclean: clean
 161
 162 .PHONY: subdir_echo-headers
 163 subdir_echo-headers: echo-headers
 164
 165 .PHONY: subdir_echo-distinfo
 166 subdir_echo-distinfo:
 167         @echo $(addprefix +header+,$(headers) $(filter %.h,$(distribute))) \
 168               $(addprefix +nodist+,$(generated) $(common-generated) $(dont_distribute))
 169
 170 # We want to install everything except the library itself, but update all
 171 # our portions of the library because the parent make will install it later
 172 # (likewise the stubs file).
 173 .PHONY: subdir_install
 174 subdir_install: install-no-libc.a lib-noranlib stubs
 175
 176 .PHONY: subdir_TAGS subdir_dist
 177 subdir_TAGS: TAGS
 178 subdir_dist: dist
 179
 180 # Convenient target to update all the generated source files.
 181 .PHONY: generated
 182 generated: $(addprefix $(common-objpfx),$(common-generated)) \
 183         $(addprefix $(objpfx),$(generated))
 184
 185 # Target required by the Hurd to ensure that all the MiG-generated
 186 # headers are in place before building a subdirectory.
 187 .PHONY: before-compile
 188 before-compile: $(before-compile)
 189
 190 define o-iterator-doit
 191 $(common-objpfx)empty$o: $(common-objpfx)empty.c $(before-compile);
 192         $$(compile-command.c)
 193 endef
 194 object-suffixes-left := $(object-suffixes)
 195 include $(o-iterator)
 196
 197 define o-iterator-doit
 198 $(common-objpfx)dummy$o: $(common-objpfx)dummy.c $(before-compile);
 199         $$(compile-command.c)
 200 endef
 201 object-suffixes-left := $(object-suffixes)
 202 include $(o-iterator)
 203
 204 # There's no good place to put this - here will do.
 205 # The dependencies are wrong if it's run from the top level.
 206 ifeq ($(filter %posix, $(sysdirs)),)
 207 L_tmpnam  = 1
 208 TMP_MAX   = 0
 209 L_ctermid = 1
 210 L_cuserid = 1
 211 else
 212 L_tmpnam  = 20
 213 TMP_MAX   = 238328
 214 L_ctermid = 9
 215 L_cuserid = 9
 216 endif
 217 stdio_lim = $(common-objpfx)bits/stdio_lim.h
 218
 219 $(stdio_lim:lim.h=%.h) $(stdio_lim:lim.h=%.d): $(stdio_lim:lim.h=%.st); @:
 220 $(stdio_lim:h=st): $(..)stdio-common/stdio_lim.h.in $(..)Rules \
 221                    $(common-objpfx)config.make
 222         $(make-target-directory)
 223         echo '#include "$(..)posix/bits/posix1_lim.h"' |                \
 224         SUNPRO_DEPENDENCIES='$(@:st=dT) $@'                             \
 225         $(CC) $(+includes) -E -dM -xc - -o $(@:st=hT)
 226 ifdef sed-remove-objpfx
 227         sed $(sed-remove-objpfx) $(@:st=dT) > $(@:st=dt)
 228         mv -f $(@:st=dt) $(@:st=d)
 229 else
 230         mv -f $(@:st=dT) $(@:st=d)
 231 endif
 232         fopen_max=`sed -n 's/^#define OPEN_MAX //p' $(@:st=hT)`;        \
 233         filename_max=`sed -n 's/^#define PATH_MAX //p' $(@:st=hT)`;     \
 234         fopen_max=$${fopen_max:-16};                                    \
 235         filename_max=$${filename_max:-1024};                            \
 236         sed -e "s/@FOPEN_MAX@/$$fopen_max/"                             \
 237             -e "s/@FILENAME_MAX@/$$filename_max/"                       \
 238             -e "s/@L_tmpnam@/$(L_tmpnam)/"                              \
 239             -e "s/@TMP_MAX@/$(TMP_MAX)/"                                \
 240             -e "s/@L_ctermid@/$(L_ctermid)/"                            \
 241             -e "s/@L_cuserid@/$(L_cuserid)/"                            \
 242             $< > $(@:st=h.new)
 243         $(move-if-change) $(@:st=h.new) $(@:st=h)
 244 # Remove these last so that they can be examined if something went wrong.
 245         rm -f $(@:st=hT) $(@:st=dT)
 246         touch $@
 247 # Get dependencies.
 248 ifndef no_deps
 249 -include $(stdio_lim:h=d)
 250 endif
 251 common-generated += bits/stdio_lim.h bits/stdio_lim.d bits/stdio_lim.st