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) { }' > $@
  78 common-generated += dummy.o dummy.c
  79 \f
  80 # This makes all the auxiliary and test programs.
  81
  82 .PHONY: others tests
  83 ifeq ($(build-programs),yes)
  84 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
  85 else
  86 others: $(addprefix $(objpfx),$(extra-objs))
  87 endif
  88 ifeq ($(cross-compiling),yes)
  89 tests: $(addprefix $(objpfx),$(tests) $(test-srcs))
  90 else
  91 tests: $(tests:%=$(objpfx)%.out)
  92 endif
  93
  94 ifeq ($(build-programs),yes)
  95 binaries-all = $(others) $(sysdep-others) $(tests) $(test-srcs)
  96 binaries-static = $(others-static)
  97 else
  98 binaries-all = $(tests) $(test-srcs)
  99 binaries-static =
 100 endif
 101
 102 binaries-shared = $(filter-out $(binaries-static), $(binaries-all))
 103
 104 ifneq "$(strip $(binaries-shared))" ""
 105 $(addprefix $(objpfx),$(binaries-shared)): %: %.o \
 106   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 107   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 108         $(+link)
 109 endif
 110
 111 ifneq "$(strip $(binaries-static))" ""
 112 $(addprefix $(objpfx),$(binaries-static)): %: %.o \
 113   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 114   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 115         $(+link-static)
 116 endif
 117
 118 ifneq "$(strip $(tests) $(test-srcs))" ""
 119 # These are the implicit rules for making test outputs
 120 # from the test programs and whatever input files are present.
 121 $(objpfx)%.out: %.args $(objpfx)% %.input
 122         $($*-ENV) $(built-program-cmd) `cat $(word 1,$^)` < $(word 3,$^) > $@
 123 $(objpfx)%.out: %.args $(objpfx)%
 124         $($*-ENV) $(built-program-cmd) `cat $(word 1,$^)` > $@
 125 $(objpfx)%.out: %.input $(objpfx)%
 126         $($*-ENV) $(built-program-cmd) < $(word 1,$^) > $@
 127 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 128         $($*-ENV) $(built-program-cmd) > $@
 129 endif   # tests
 130 \f
 131 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 132         subdir_clean subdir_mostlyclean subdir_testclean
 133 subdir_mostlyclean: mostlyclean
 134 subdir_clean: clean
 135 subdir_distclean: distclean
 136 subdir_realclean: realclean
 137 subdir_testclean: do-tests-clean
 138 realclean: distclean
 139 distclean: clean
 140
 141 .PHONY: subdir_echo-headers
 142 subdir_echo-headers: echo-headers
 143
 144 .PHONY: subdir_echo-distinfo
 145 subdir_echo-distinfo:
 146         @echo $(addprefix +header+,$(headers) $(filter %.h,$(distribute))) \
 147               $(addprefix +nodist+,$(generated) $(common-generated) $(dont_distribute))
 148
 149 # We want to install everything except the library itself, but update all
 150 # our portions of the library because the parent make will install it later
 151 # (likewise the stubs file).
 152 .PHONY: subdir_install
 153 subdir_install: install-no-libc.a lib-noranlib stubs
 154
 155 .PHONY: subdir_TAGS subdir_dist
 156 subdir_TAGS: TAGS
 157 subdir_dist: dist
 158
 159 # Convenient target to update all the generated source files.
 160 .PHONY: generated
 161 generated: $(addprefix $(common-objpfx),$(common-generated)) \
 162         $(addprefix $(objpfx),$(generated))
 163
 164 # Target required by the Hurd to ensure that all the MiG-generated
 165 # headers are in place before building a subdirectory.
 166 .PHONY: before-compile
 167 before-compile: $(before-compile)
 168
 169 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 170         $(compile-command.c)
 171
 172 # There's no good place to put this - here will do.
 173 # The dependencies are wrong if it's run from the top level.
 174 ifeq ($(filter %posix, $(sysdirs)),)
 175 L_tmpnam  = 1
 176 TMP_MAX   = 0
 177 L_ctermid = 1
 178 L_cuserid = 1
 179 else
 180 L_tmpnam  = 20
 181 TMP_MAX   = 238328
 182 L_ctermid = 9
 183 L_cuserid = 9
 184 endif
 185 stdio_lim = $(common-objpfx)bits/stdio_lim.h
 186
 187 $(stdio_lim:lim.h=%.h) $(stdio_lim:lim.h=%.d): $(stdio_lim:lim.h=%.st); @:
 188 $(stdio_lim:h=st): $(..)stdio-common/stdio_lim.h.in $(..)Rules \
 189                    $(common-objpfx)config.make
 190         $(make-target-directory)
 191         echo '#include "$(..)posix/bits/posix1_lim.h"' |                \
 192         SUNPRO_DEPENDENCIES='$(@:st=dT) $@'                             \
 193         $(CC) $(+includes) -E -dM -xc - -o $(@:st=hT)
 194         echo '#include "$(..)misc/sys/uio.h"' |                         \
 195         SUNPRO_DEPENDENCIES='$(@:st=dT) $@'                             \
 196         $(CC) $(+includes) -E -dM -xc - | cat - >> $(@:st=hT)
 197 ifdef sed-remove-objpfx
 198         sed $(sed-remove-objpfx) $(@:st=dT) > $(@:st=dt)
 199         cat $(@:st=dt) >> $(@:st=d)
 200 else
 201         cat $(@:st=dT) >> $(@:st=d)
 202 endif
 203         fopen_max=`sed -n 's/^#define OPEN_MAX //1p' $(@:st=hT)`;       \
 204         filename_max=`sed -n 's/^#define PATH_MAX //1p' $(@:st=hT)`;    \
 205         iov_max=`sed -n 's/^#define UIO_MAXIOV //p' $(@:st=hT)`;        \
 206         fopen_max=$${fopen_max:-16};                                    \
 207         filename_max=$${filename_max:-1024};                            \
 208         iov_max=$${iov_max:-_XOPEN_IOV_MAX};                            \
 209         sed -e "s/@FOPEN_MAX@/$$fopen_max/"                             \
 210             -e "s/@FILENAME_MAX@/$$filename_max/"                       \
 211             -e "s/@L_tmpnam@/$(L_tmpnam)/"                              \
 212             -e "s/@TMP_MAX@/$(TMP_MAX)/"                                \
 213             -e "s/@L_ctermid@/$(L_ctermid)/"                            \
 214             -e "s/@L_cuserid@/$(L_cuserid)/"                            \
 215             -e "s/@IOV_MAX@/$$iov_max/"                                 \
 216             $< > $(@:st=h.new)
 217         $(move-if-change) $(@:st=h.new) $(@:st=h)
 218 # Remove these last so that they can be examined if something went wrong.
 219         rm -f $(@:st=hT) $(@:st=dT) $(@:st=dt)
 220         touch $@
 221 # Get dependencies.
 222 ifndef no_deps
 223 -include $(stdio_lim:h=d)
 224 endif
 225 common-generated += bits/stdio_lim.h bits/stdio_lim.d bits/stdio_lim.st