Rules

   1 # Copyright (C) 1991,92,93,94,95,96,97,98,99,2000 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,$(origin common-generated))" ""
  61 common-generated :=
  62 endif
  63
  64 include ../Makerules
  65
  66 .PHONY: subdir_lib
  67 subdir_lib: lib-noranlib
  68
  69 # Some subdirs need to install a dummy library.
  70 # They can use "$(objpfx)libfnord.a: $(dep-dummy-lib); $(make-dummy-lib)".
  71 dep-dummy-lib = $(common-objpfx)dummy.o
  72 define make-dummy-lib
  73 $(AR) cr$(verbose) $@ $<
  74 endef
  75
  76 $(common-objpfx)dummy.c:
  77         rm -f $@
  78         (echo 'extern void __dummy__ (void);'; \
  79          echo 'void __dummy__ (void) { }') > $@
  80 common-generated += dummy.o dummy.c
  81 \f
  82 # This makes all the auxiliary and test programs.
  83
  84 .PHONY: others tests
  85 ifeq ($(build-programs),yes)
  86 others: $(addprefix $(objpfx),$(others) $(sysdep-others) $(extra-objs))
  87 else
  88 others: $(addprefix $(objpfx),$(extra-objs))
  89 endif
  90 ifeq ($(cross-compiling),yes)
  91 tests: $(addprefix $(objpfx),$(tests) $(test-srcs))
  92 else
  93 ifeq ($(build-bounded),yes)
  94 tests-bp.out = $(tests:%=$(objpfx)%-bp.out)
  95 endif
  96 tests: $(tests:%=$(objpfx)%.out) $(tests-bp.out)
  97 endif
  98
  99 ifeq ($(build-programs),yes)
 100 binaries-all = $(others) $(sysdep-others) $(tests) $(test-srcs)
 101 binaries-static = $(others-static) $(tests-static)
 102 else
 103 binaries-all = $(tests) $(test-srcs)
 104 binaries-static =
 105 endif
 106
 107 binaries-shared = $(filter-out $(binaries-static), $(binaries-all))
 108
 109 ifneq "$(strip $(binaries-shared))" ""
 110 $(addprefix $(objpfx),$(binaries-shared)): %: %.o \
 111   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 112   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 113         $(+link)
 114 endif
 115
 116 ifneq "$(strip $(binaries-static))" ""
 117 $(addprefix $(objpfx),$(binaries-static)): %: %.o \
 118   $(sort $(filter $(common-objpfx)lib%,$(link-libc-static))) \
 119   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 120         $(+link-static)
 121 endif
 122
 123 ifeq ($(build-bounded),yes)
 124 binaries-bounded = $(addsuffix -bp,$(tests) $(test-srcs))
 125 $(addprefix $(objpfx),$(binaries-bounded)): %-bp: %.ob \
 126   $(sort $(filter $(common-objpfx)lib%,$(link-libc-bounded))) \
 127   $(addprefix $(csu-objpfx),start.ob) $(+preinit) $(+postinit)
 128         $(+link-bounded)
 129 endif
 130
 131 ifneq "$(strip $(tests) $(test-srcs))" ""
 132 # These are the implicit rules for making test outputs
 133 # from the test programs and whatever input files are present.
 134
 135 make-test-out = GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
 136                 $($*-ENV) $(built-program-cmd) $($*-ARGS)
 137 $(objpfx)%-bp.out: %.input $(objpfx)%-bp
 138         $(make-test-out) > $@ < $(word 1,$^)
 139 $(objpfx)%.out: %.input $(objpfx)%
 140         $(make-test-out) > $@ < $(word 1,$^)
 141 $(objpfx)%.out: /dev/null $(objpfx)%    # Make it 2nd arg for canned sequence.
 142         $(make-test-out) > $@
 143
 144 endif   # tests
 145 \f
 146 .PHONY: distclean realclean subdir_distclean subdir_realclean \
 147         subdir_clean subdir_mostlyclean subdir_testclean
 148 subdir_mostlyclean: mostlyclean
 149 subdir_clean: clean
 150 subdir_distclean: distclean
 151 subdir_realclean: realclean
 152 subdir_testclean: do-tests-clean
 153 realclean: distclean
 154 distclean: clean
 155
 156 .PHONY: subdir_echo-headers
 157 subdir_echo-headers: echo-headers
 158
 159 .PHONY: subdir_echo-distinfo
 160 subdir_echo-distinfo:
 161         @echo $(addprefix +header+,$(headers) $(filter %.h,$(distribute))) \
 162               $(addprefix +nodist+,$(generated) $(common-generated) $(dont_distribute))
 163
 164 # We want to install everything except the library itself, but update all
 165 # our portions of the library because the parent make will install it later
 166 # (likewise the stubs file).
 167 .PHONY: subdir_install
 168 subdir_install: install-no-libc.a lib-noranlib stubs
 169
 170 .PHONY: subdir_TAGS subdir_dist
 171 subdir_TAGS: TAGS
 172 subdir_dist: dist
 173
 174 # Convenient target to update all the generated source files.
 175 .PHONY: generated
 176 generated: $(addprefix $(common-objpfx),$(common-generated)) \
 177         $(addprefix $(objpfx),$(generated))
 178
 179 # Target required by the Hurd to ensure that all the MiG-generated
 180 # headers are in place before building a subdirectory.
 181 .PHONY: before-compile
 182 before-compile: $(before-compile)
 183
 184 $(common-objpfx)dummy.o: $(common-objpfx)dummy.c $(before-compile);
 185         $(compile-command.c)
 186
 187 # There's no good place to put this - here will do.
 188 # The dependencies are wrong if it's run from the top level.
 189 ifeq ($(filter %posix, $(sysdirs)),)
 190 L_tmpnam  = 1
 191 TMP_MAX   = 0
 192 L_ctermid = 1
 193 L_cuserid = 1
 194 else
 195 L_tmpnam  = 20
 196 TMP_MAX   = 238328
 197 L_ctermid = 9
 198 L_cuserid = 9
 199 endif
 200 stdio_lim = $(common-objpfx)bits/stdio_lim.h
 201
 202 $(stdio_lim:lim.h=%.h) $(stdio_lim:lim.h=%.d): $(stdio_lim:lim.h=%.st); @:
 203 $(stdio_lim:h=st): $(..)stdio-common/stdio_lim.h.in $(..)Rules \
 204                    $(common-objpfx)config.make
 205         $(make-target-directory)
 206         echo '#include "$(..)posix/bits/posix1_lim.h"' |                \
 207         SUNPRO_DEPENDENCIES='$(@:st=dT) $@'                             \
 208         $(CC) $(+includes) -E -dM -xc - -o $(@:st=hT)
 209         echo '#include "$(..)misc/sys/uio.h"' |                         \
 210         SUNPRO_DEPENDENCIES='$(@:st=dT) $@'                             \
 211         $(CC) -D_LIBC=1 $(+includes) -E -dM -xc - | cat - >> $(@:st=hT)
 212 ifdef sed-remove-objpfx
 213         sed $(sed-remove-objpfx) $(@:st=dT) > $(@:st=dt)
 214         cat $(@:st=dt) >> $(@:st=d)
 215 else
 216         cat $(@:st=dT) >> $(@:st=d)
 217 endif
 218         fopen_max=`sed -n 's/^#define OPEN_MAX //1p' $(@:st=hT)`;       \
 219         filename_max=`sed -n 's/^#define PATH_MAX //1p' $(@:st=hT)`;    \
 220         iov_max=`sed -n 's/^#define UIO_MAXIOV //p' $(@:st=hT)`;        \
 221         fopen_max=$${fopen_max:-16};                                    \
 222         filename_max=$${filename_max:-1024};                            \
 223         if [ -z $$iov_max ]; then                                       \
 224           define_iov_max="# undef IOV_MAX";                             \
 225         else                                                            \
 226           define_iov_max="# define IOV_MAX $$iov_max";                  \
 227         fi;                                                             \
 228         sed -e "s/@FOPEN_MAX@/$$fopen_max/"                             \
 229             -e "s/@FILENAME_MAX@/$$filename_max/"                       \
 230             -e "s/@L_tmpnam@/$(L_tmpnam)/"                              \
 231             -e "s/@TMP_MAX@/$(TMP_MAX)/"                                \
 232             -e "s/@L_ctermid@/$(L_ctermid)/"                            \
 233             -e "s/@L_cuserid@/$(L_cuserid)/"                            \
 234             -e "s/@define_IOV_MAX@/$$define_iov_max/"                   \
 235             $< > $(@:st=h.new)
 236         $(move-if-change) $(@:st=h.new) $(@:st=h)
 237 # Remove these last so that they can be examined if something went wrong.
 238         rm -f $(@:st=hT) $(@:st=dT) $(@:st=dt)
 239         touch $@
 240 # Get dependencies.
 241 ifndef no_deps
 242 -include $(stdio_lim:h=d)
 243 endif
 244 common-generated += bits/stdio_lim.h bits/stdio_lim.d bits/stdio_lim.st