Rules

   1 # Copyright (C) 1991,92,93,94,95,96,97,98,99 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 else
  94 tests: $(tests:%=$(objpfx)%.out)
  95 endif
  96
  97 ifeq ($(build-programs),yes)
  98 binaries-all = $(others) $(sysdep-others) $(tests) $(test-srcs)
  99 binaries-static = $(others-static)
 100 else
 101 binaries-all = $(tests) $(test-srcs)
 102 binaries-static =
 103 endif
 104
 105 binaries-shared = $(filter-out $(binaries-static), $(binaries-all))
 106
 107 ifneq "$(strip $(binaries-shared))" ""
 108 $(addprefix $(objpfx),$(binaries-shared)): %: %.o \
 109   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 110   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 111         $(+link)
 112 endif
 113
 114 ifneq "$(strip $(binaries-static))" ""
 115 $(addprefix $(objpfx),$(binaries-static)): %: %.o \
 116   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 117   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 118         $(+link-static)
 119 endif
 120
 121 ifneq "$(strip $(tests) $(test-srcs))" ""
 122 # These are the implicit rules for making test outputs
 123 # from the test programs and whatever input files are present.
 124 $(objpfx)%.out: %.args $(objpfx)% %.input
 125         $($*-ENV) $(built-program-cmd) `cat $(word 1,$^)` < $(word 3,$^) > $@
 126 $(objpfx)%.out: %.args $(objpfx)%
 127         $($*-ENV) $(built-program-cmd) `cat $(word 1,$^)` > $@
 128 $(objpfx)%.out: %.input $(objpfx)%
 129         $($*-ENV) $(built-program-cmd) < $(word 1,$^) > $@
 130 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 131         $($*-ENV) $(built-program-cmd) > $@
 132 endif   # tests
 133 \f
 134 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 135         subdir_clean subdir_mostlyclean subdir_testclean
 136 subdir_mostlyclean: mostlyclean
 137 subdir_clean: clean
 138 subdir_distclean: distclean
 139 subdir_realclean: realclean
 140 subdir_testclean: do-tests-clean
 141 realclean: distclean
 142 distclean: clean
 143
 144 .PHONY: subdir_echo-headers
 145 subdir_echo-headers: echo-headers
 146
 147 .PHONY: subdir_echo-distinfo
 148 subdir_echo-distinfo:
 149         @echo $(addprefix +header+,$(headers) $(filter %.h,$(distribute))) \
 150               $(addprefix +nodist+,$(generated) $(common-generated) $(dont_distribute))
 151
 152 # We want to install everything except the library itself, but update all
 153 # our portions of the library because the parent make will install it later
 154 # (likewise the stubs file).
 155 .PHONY: subdir_install
 156 subdir_install: install-no-libc.a lib-noranlib stubs
 157
 158 .PHONY: subdir_TAGS subdir_dist
 159 subdir_TAGS: TAGS
 160 subdir_dist: dist
 161
 162 # Convenient target to update all the generated source files.
 163 .PHONY: generated
 164 generated: $(addprefix $(common-objpfx),$(common-generated)) \
 165         $(addprefix $(objpfx),$(generated))
 166
 167 # Target required by the Hurd to ensure that all the MiG-generated
 168 # headers are in place before building a subdirectory.
 169 .PHONY: before-compile
 170 before-compile: $(before-compile)
 171
 172 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 173         $(compile-command.c)
 174
 175 # There's no good place to put this - here will do.
 176 # The dependencies are wrong if it's run from the top level.
 177 ifeq ($(filter %posix, $(sysdirs)),)
 178 L_tmpnam  = 1
 179 TMP_MAX   = 0
 180 L_ctermid = 1
 181 L_cuserid = 1
 182 else
 183 L_tmpnam  = 20
 184 TMP_MAX   = 238328
 185 L_ctermid = 9
 186 L_cuserid = 9
 187 endif
 188 stdio_lim = $(common-objpfx)bits/stdio_lim.h
 189
 190 $(stdio_lim:lim.h=%.h) $(stdio_lim:lim.h=%.d): $(stdio_lim:lim.h=%.st); @:
 191 $(stdio_lim:h=st): $(..)stdio-common/stdio_lim.h.in $(..)Rules \
 192                    $(common-objpfx)config.make
 193         $(make-target-directory)
 194         echo '#include "$(..)posix/bits/posix1_lim.h"' |                \
 195         SUNPRO_DEPENDENCIES='$(@:st=dT) $@'                             \
 196         $(CC) $(+includes) -E -dM -xc - -o $(@:st=hT)
 197 ifdef sed-remove-objpfx
 198         sed $(sed-remove-objpfx) $(@:st=dT) > $(@:st=dt)
 199         mv -f $(@:st=dt) $(@:st=d)
 200 else
 201         mv -f $(@:st=dT) $(@:st=d)
 202 endif
 203         fopen_max=`sed -n 's/^#define OPEN_MAX //p' $(@:st=hT)`;        \
 204         filename_max=`sed -n 's/^#define PATH_MAX //p' $(@:st=hT)`;     \
 205         fopen_max=$${fopen_max:-16};                                    \
 206         filename_max=$${filename_max:-1024};                            \
 207         sed -e "s/@FOPEN_MAX@/$$fopen_max/"                             \
 208             -e "s/@FILENAME_MAX@/$$filename_max/"                       \
 209             -e "s/@L_tmpnam@/$(L_tmpnam)/"                              \
 210             -e "s/@TMP_MAX@/$(TMP_MAX)/"                                \
 211             -e "s/@L_ctermid@/$(L_ctermid)/"                            \
 212             -e "s/@L_cuserid@/$(L_cuserid)/"                            \
 213             $< > $(@:st=h.new)
 214         $(move-if-change) $(@:st=h.new) $(@:st=h)
 215 # Remove these last so that they can be examined if something went wrong.
 216         rm -f $(@:st=hT) $(@:st=dT)
 217         touch $@
 218 # Get dependencies.
 219 ifndef no_deps
 220 -include $(stdio_lim:h=d)
 221 endif
 222 common-generated += bits/stdio_lim.h bits/stdio_lim.d bits/stdio_lim.st