nsprpub/config/rules.mk

   1 #! gmake
   2 #
   3 # ***** BEGIN LICENSE BLOCK *****
   4 # Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5 #
   6 # The contents of this file are subject to the Mozilla Public License Version
   7 # 1.1 (the "License"); you may not use this file except in compliance with
   8 # the License. You may obtain a copy of the License at
   9 # http://www.mozilla.org/MPL/
  10 #
  11 # Software distributed under the License is distributed on an "AS IS" basis,
  12 # WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13 # for the specific language governing rights and limitations under the
  14 # License.
  15 #
  16 # The Original Code is the Netscape Portable Runtime (NSPR).
  17 #
  18 # The Initial Developer of the Original Code is
  19 # Netscape Communications Corporation.
  20 # Portions created by the Initial Developer are Copyright (C) 1998-2000
  21 # the Initial Developer. All Rights Reserved.
  22 #
  23 # Contributor(s):
  24 #
  25 # Alternatively, the contents of this file may be used under the terms of
  26 # either the GNU General Public License Version 2 or later (the "GPL"), or
  27 # the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28 # in which case the provisions of the GPL or the LGPL are applicable instead
  29 # of those above. If you wish to allow use of your version of this file only
  30 # under the terms of either the GPL or the LGPL, and not to allow others to
  31 # use your version of this file under the terms of the MPL, indicate your
  32 # decision by deleting the provisions above and replace them with the notice
  33 # and other provisions required by the GPL or the LGPL. If you do not delete
  34 # the provisions above, a recipient may use your version of this file under
  35 # the terms of any one of the MPL, the GPL or the LGPL.
  36 #
  37 # ***** END LICENSE BLOCK *****
  38
  39 ################################################################################
  40 # We used to have a 4 pass build process.  Now we do everything in one pass.
  41 #
  42 # export - Create generated headers and stubs. Publish public headers to
  43 #          dist/<arch>/include.
  44 #          Create libraries. Publish libraries to dist/<arch>/lib.
  45 #          Create programs.
  46 #
  47 # libs - obsolete.  Now a synonym of "export".
  48 #
  49 # all - the default makefile target.  Now a synonym of "export".
  50 #
  51 # install - Install headers, libraries, and programs on the system.
  52 #
  53 # Parameters to this makefile (set these before including):
  54 #
  55 # a)
  56 #       TARGETS -- the target to create
  57 #                       (defaults to $LIBRARY $PROGRAM)
  58 # b)
  59 #       DIRS    -- subdirectories for make to recurse on
  60 #                       (the 'all' rule builds $TARGETS $DIRS)
  61 # c)
  62 #       CSRCS   -- .c files to compile
  63 #                       (used to define $OBJS)
  64 # d)
  65 #       PROGRAM -- the target program name to create from $OBJS
  66 #                       ($OBJDIR automatically prepended to it)
  67 # e)
  68 #       LIBRARY -- the target library name to create from $OBJS
  69 #                       ($OBJDIR automatically prepended to it)
  70 #
  71 ################################################################################
  72
  73 ifndef topsrcdir
  74 topsrcdir=$(MOD_DEPTH)
  75 endif
  76
  77 ifndef srcdir
  78 srcdir=.
  79 endif
  80
  81 ifndef NSPR_CONFIG_MK
  82 include $(topsrcdir)/config/config.mk
  83 endif
  84
  85 ifdef USE_AUTOCONF
  86 ifdef CROSS_COMPILE
  87 ifdef INTERNAL_TOOLS
  88 CC=$(HOST_CC)
  89 CCC=$(HOST_CXX)
  90 CFLAGS=$(HOST_CFLAGS)
  91 CXXFLAGS=$(HOST_CXXFLAGS)
  92 LDFLAGS=$(HOST_LDFLAGS)
  93 endif
  94 endif
  95 endif
  96
  97 #
  98 # This makefile contains rules for building the following kinds of
  99 # libraries:
 100 # - LIBRARY: a static (archival) library
 101 # - SHARED_LIBRARY: a shared (dynamic link) library
 102 # - IMPORT_LIBRARY: an import library, used only on Windows and OS/2
 103 #
 104 # The names of these libraries can be generated by simply specifying
 105 # LIBRARY_NAME and LIBRARY_VERSION.
 106 #
 107
 108 ifdef LIBRARY_NAME
 109 ifeq (,$(filter-out WINNT OS2,$(OS_ARCH)))
 110
 111 #
 112 # Win95, Win16, and OS/2 require library names conforming to the 8.3 rule.
 113 # other platforms do not.
 114 #
 115 ifeq (,$(filter-out WIN95 OS2,$(OS_TARGET)))
 116 LIBRARY         = $(OBJDIR)/$(LIBRARY_NAME)$(LIBRARY_VERSION)_s.$(LIB_SUFFIX)
 117 SHARED_LIBRARY  = $(OBJDIR)/$(LIBRARY_NAME)$(LIBRARY_VERSION).$(DLL_SUFFIX)
 118 IMPORT_LIBRARY  = $(OBJDIR)/$(LIBRARY_NAME)$(LIBRARY_VERSION).$(LIB_SUFFIX)
 119 SHARED_LIB_PDB  = $(OBJDIR)/$(LIBRARY_NAME)$(LIBRARY_VERSION).pdb
 120 else
 121 LIBRARY         = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION)_s.$(LIB_SUFFIX)
 122 SHARED_LIBRARY  = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).$(DLL_SUFFIX)
 123 IMPORT_LIBRARY  = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).$(LIB_SUFFIX)
 124 SHARED_LIB_PDB  = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).pdb
 125 endif
 126
 127 else
 128
 129 LIBRARY         = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).$(LIB_SUFFIX)
 130 ifeq ($(OS_ARCH)$(OS_RELEASE), AIX4.1)
 131 SHARED_LIBRARY  = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION)_shr.a
 132 else
 133 ifdef MKSHLIB
 134 SHARED_LIBRARY  = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).$(DLL_SUFFIX)
 135 endif
 136 endif
 137
 138 endif
 139 endif
 140
 141 ifndef TARGETS
 142 ifeq (,$(filter-out WINNT OS2,$(OS_ARCH)))
 143 TARGETS         = $(LIBRARY) $(SHARED_LIBRARY) $(IMPORT_LIBRARY)
 144 ifndef BUILD_OPT
 145 ifdef MSC_VER
 146 ifneq (,$(filter-out 1100 1200,$(MSC_VER)))
 147 TARGETS         += $(SHARED_LIB_PDB)
 148 endif
 149 endif
 150 endif
 151 else
 152 TARGETS         = $(LIBRARY) $(SHARED_LIBRARY)
 153 endif
 154 endif
 155
 156 #
 157 # OBJS is the list of object files.  It can be constructed by
 158 # specifying CSRCS (list of C source files) and ASFILES (list
 159 # of assembly language source files).
 160 #
 161
 162 ifndef OBJS
 163 OBJS            = $(addprefix $(OBJDIR)/,$(CSRCS:.c=.$(OBJ_SUFFIX))) \
 164                   $(addprefix $(OBJDIR)/,$(ASFILES:.$(ASM_SUFFIX)=.$(OBJ_SUFFIX)))
 165 endif
 166
 167 ifeq ($(MOZ_OS2_TOOLS),VACPP)
 168 EXTRA_LIBS := $(patsubst -l%,$(DIST)/lib/%.$(LIB_SUFFIX),$(EXTRA_LIBS))
 169 endif
 170
 171 ALL_TRASH               = $(TARGETS) $(OBJS) $(RES) $(filter-out . .., $(OBJDIR)) LOGS TAGS $(GARBAGE) \
 172                           $(NOSUCHFILE) \
 173                           so_locations
 174
 175 ifeq ($(OS_ARCH),OpenVMS)
 176 ALL_TRASH               += $(wildcard *.c*_defines)
 177 ifdef SHARED_LIBRARY
 178 VMS_SYMVEC_FILE         = $(SHARED_LIBRARY:.$(DLL_SUFFIX)=_symvec.opt)
 179 VMS_SYMVEC_FILE_MODULE  = $(srcdir)/$(LIBRARY_NAME)_symvec.opt
 180 ALL_TRASH               += $(VMS_SYMVEC_FILE)
 181 endif
 182 endif
 183
 184 ifndef RELEASE_LIBS_DEST
 185 RELEASE_LIBS_DEST       = $(RELEASE_LIB_DIR)
 186 endif
 187
 188 ifdef DIRS
 189 LOOP_OVER_DIRS          =                                       \
 190         @for d in $(DIRS); do                                   \
 191                 if test -d $$d; then                            \
 192                         set -e;                                 \
 193                         echo "cd $$d; $(MAKE) $@";              \
 194                         $(MAKE) -C $$d $@;                      \
 195                         set +e;                                 \
 196                 else                                            \
 197                         echo "Skipping non-directory $$d...";   \
 198                 fi;                                             \
 199         done
 200 endif
 201
 202 ################################################################################
 203
 204 all:: export
 205
 206 export::
 207         +$(LOOP_OVER_DIRS)
 208
 209 libs:: export
 210
 211 clean::
 212         rm -rf $(OBJS) $(RES) so_locations $(NOSUCHFILE) $(GARBAGE)
 213         +$(LOOP_OVER_DIRS)
 214
 215 clobber::
 216         rm -rf $(OBJS) $(RES) $(TARGETS) $(filter-out . ..,$(OBJDIR)) $(GARBAGE) so_locations $(NOSUCHFILE)
 217         +$(LOOP_OVER_DIRS)
 218
 219 realclean clobber_all::
 220         rm -rf $(wildcard *.OBJ *.OBJD) dist $(ALL_TRASH)
 221         +$(LOOP_OVER_DIRS)
 222
 223 distclean::
 224         rm -rf $(wildcard *.OBJ *.OBJD) dist $(ALL_TRASH) $(DIST_GARBAGE)
 225         +$(LOOP_OVER_DIRS)
 226
 227 install:: $(RELEASE_BINS) $(RELEASE_HEADERS) $(RELEASE_LIBS)
 228 ifdef RELEASE_BINS
 229         $(NSINSTALL) -t -m 0755 $(RELEASE_BINS) $(DESTDIR)$(bindir)
 230 endif
 231 ifdef RELEASE_HEADERS
 232         $(NSINSTALL) -t -m 0644 $(RELEASE_HEADERS) $(DESTDIR)$(includedir)/$(include_subdir)
 233 endif
 234 ifdef RELEASE_LIBS
 235         $(NSINSTALL) -t -m 0755 $(RELEASE_LIBS) $(DESTDIR)$(libdir)/$(lib_subdir)
 236 endif
 237         +$(LOOP_OVER_DIRS)
 238
 239 release:: export
 240 ifdef RELEASE_BINS
 241         @echo "Copying executable programs and scripts to release directory"
 242         @if test -z "$(BUILD_NUMBER)"; then \
 243                 echo "BUILD_NUMBER must be defined"; \
 244                 false; \
 245         else \
 246                 true; \
 247         fi
 248         @if test ! -d $(RELEASE_BIN_DIR); then \
 249                 rm -rf $(RELEASE_BIN_DIR); \
 250                 $(NSINSTALL) -D $(RELEASE_BIN_DIR);\
 251         else \
 252                 true; \
 253         fi
 254         cp $(RELEASE_BINS) $(RELEASE_BIN_DIR)
 255 endif
 256 ifdef RELEASE_LIBS
 257         @echo "Copying libraries to release directory"
 258         @if test -z "$(BUILD_NUMBER)"; then \
 259                 echo "BUILD_NUMBER must be defined"; \
 260                 false; \
 261         else \
 262                 true; \
 263         fi
 264         @if test ! -d $(RELEASE_LIBS_DEST); then \
 265                 rm -rf $(RELEASE_LIBS_DEST); \
 266                 $(NSINSTALL) -D $(RELEASE_LIBS_DEST);\
 267         else \
 268                 true; \
 269         fi
 270         cp $(RELEASE_LIBS) $(RELEASE_LIBS_DEST)
 271 endif
 272 ifdef RELEASE_HEADERS
 273         @echo "Copying header files to release directory"
 274         @if test -z "$(BUILD_NUMBER)"; then \
 275                 echo "BUILD_NUMBER must be defined"; \
 276                 false; \
 277         else \
 278                 true; \
 279         fi
 280         @if test ! -d $(RELEASE_HEADERS_DEST); then \
 281                 rm -rf $(RELEASE_HEADERS_DEST); \
 282                 $(NSINSTALL) -D $(RELEASE_HEADERS_DEST);\
 283         else \
 284                 true; \
 285         fi
 286         cp $(RELEASE_HEADERS) $(RELEASE_HEADERS_DEST)
 287 endif
 288         +$(LOOP_OVER_DIRS)
 289
 290 alltags:
 291         rm -f TAGS tags
 292         find . -name dist -prune -o \( -name '*.[hc]' -o -name '*.cp' -o -name '*.cpp' \) -print | xargs etags -a
 293         find . -name dist -prune -o \( -name '*.[hc]' -o -name '*.cp' -o -name '*.cpp' \) -print | xargs ctags -a
 294
 295 $(NFSPWD):
 296         cd $(@D); $(MAKE) $(@F)
 297
 298 $(PROGRAM): $(OBJS)
 299         @$(MAKE_OBJDIR)
 300 ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
 301         $(CC) $(OBJS) -Fe$@ -link $(LDFLAGS) $(OS_LIBS) $(EXTRA_LIBS)
 302 ifdef MT
 303         @if test -f $@.manifest; then \
 304                 $(MT) -NOLOGO -MANIFEST $@.manifest -OUTPUTRESOURCE:$@\;1; \
 305                 rm -f $@.manifest; \
 306         fi
 307 endif   # MSVC with manifest tool
 308 else    # WINNT && !GCC
 309 ifeq ($(MOZ_OS2_TOOLS),VACPP)
 310         $(CC) $(OBJS) -Fe$@ $(LDFLAGS) $(OS_LIBS) $(EXTRA_LIBS)
 311 else
 312         $(CC) -o $@ $(CFLAGS) $(OBJS) $(LDFLAGS)
 313 endif
 314 endif   # WINNT && !GCC
 315 ifdef ENABLE_STRIP
 316         $(STRIP) $@
 317 endif
 318
 319 $(LIBRARY): $(OBJS)
 320         @$(MAKE_OBJDIR)
 321         rm -f $@
 322 ifeq ($(MOZ_OS2_TOOLS),VACPP)
 323         $(AR) $(subst /,\\,$(OBJS)) $(AR_FLAGS)
 324 else
 325         $(AR) $(AR_FLAGS) $(OBJS) $(AR_EXTRA_ARGS)
 326 endif
 327         $(RANLIB) $@
 328
 329 ifeq ($(OS_TARGET), OS2)
 330 $(IMPORT_LIBRARY): $(MAPFILE)
 331         rm -f $@
 332         $(IMPLIB) $@ $(MAPFILE)
 333 endif
 334
 335 $(SHARED_LIBRARY): $(OBJS) $(RES) $(MAPFILE)
 336         @$(MAKE_OBJDIR)
 337         rm -f $@
 338 ifeq ($(OS_ARCH)$(OS_RELEASE), AIX4.1)
 339         echo "#!" > $(OBJDIR)/lib$(LIBRARY_NAME)_syms
 340         nm -B -C -g $(OBJS) \
 341                 | awk '/ [T,D] / {print $$3}' \
 342                 | sed -e 's/^\.//' \
 343                 | sort -u >> $(OBJDIR)/lib$(LIBRARY_NAME)_syms
 344         $(LD) $(XCFLAGS) -o $@ $(OBJS) -bE:$(OBJDIR)/lib$(LIBRARY_NAME)_syms \
 345                 -bM:SRE -bnoentry $(OS_LIBS) $(EXTRA_LIBS)
 346 else    # AIX 4.1
 347 ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
 348         $(LINK_DLL) -MAP $(DLLBASE) $(DLL_LIBS) $(EXTRA_LIBS) $(OBJS) $(RES)
 349 ifdef MT
 350         @if test -f $@.manifest; then \
 351                 $(MT) -NOLOGO -MANIFEST $@.manifest -OUTPUTRESOURCE:$@\;2; \
 352                 rm -f $@.manifest; \
 353         fi
 354 endif   # MSVC with manifest tool
 355 else    # WINNT && !GCC
 356 ifeq ($(MOZ_OS2_TOOLS),VACPP)
 357         $(LINK_DLL) $(DLLBASE) $(OBJS) $(OS_LIBS) $(EXTRA_LIBS) $(MAPFILE)
 358 else    # !os2 vacpp
 359 ifeq ($(OS_TARGET), OpenVMS)
 360         @if test ! -f $(VMS_SYMVEC_FILE); then \
 361           if test -f $(VMS_SYMVEC_FILE_MODULE); then \
 362             echo Creating component options file $(VMS_SYMVEC_FILE); \
 363             cp $(VMS_SYMVEC_FILE_MODULE) $(VMS_SYMVEC_FILE); \
 364           fi; \
 365         fi
 366 endif   # OpenVMS
 367         $(MKSHLIB) $(OBJS) $(RES) $(EXTRA_LIBS)
 368 endif   # OS2 vacpp
 369 endif   # WINNT && !GCC
 370 endif   # AIX 4.1
 371 ifdef ENABLE_STRIP
 372         $(STRIP) $@
 373 endif
 374
 375 ifeq ($(OS_ARCH),WINNT)
 376 $(RES): $(RESNAME)
 377         @$(MAKE_OBJDIR)
 378 # The resource compiler does not understand the -U option.
 379 ifdef NS_USE_GCC
 380         $(RC) $(RCFLAGS) $(filter-out -U%,$(DEFINES)) $(INCLUDES:-I%=--include-dir %) -o $@ $<
 381 else
 382         $(RC) $(RCFLAGS) $(filter-out -U%,$(DEFINES)) $(INCLUDES) -Fo$@ $<
 383 endif # GCC
 384         @echo $(RES) finished
 385 endif
 386
 387 $(MAPFILE): $(LIBRARY_NAME).def
 388         @$(MAKE_OBJDIR)
 389 ifeq ($(OS_ARCH),SunOS)
 390         grep -v ';-' $< | \
 391         sed -e 's,;+,,' -e 's; DATA ;;' -e 's,;;,,' -e 's,;.*,;,' > $@
 392 endif
 393 ifeq ($(OS_ARCH),OS2)
 394         echo LIBRARY $(LIBRARY_NAME)$(LIBRARY_VERSION) INITINSTANCE TERMINSTANCE > $@
 395         echo PROTMODE >> $@
 396         echo CODE    LOADONCALL MOVEABLE DISCARDABLE >> $@
 397         echo DATA    PRELOAD MOVEABLE MULTIPLE NONSHARED >> $@
 398         echo EXPORTS >> $@
 399 ifeq ($(MOZ_OS2_TOOLS),VACPP)
 400         grep -v ';+' $< | grep -v ';-' | \
 401         sed -e 's; DATA ;;' -e 's,;;,,' -e 's,;.*,,' >> $@
 402 else
 403         grep -v ';+' $< | grep -v ';-' | \
 404         sed -e 's; DATA ;;' -e 's,;;,,' -e 's,;.*,,' -e 's,\([\t ]*\),\1_,' | \
 405         awk 'BEGIN {ord=1;} { print($$0 " @" ord " RESIDENTNAME"); ord++;}'     >> $@
 406         $(ADD_TO_DEF_FILE)
 407 endif
 408 endif
 409
 410 #
 411 # Translate source filenames to absolute paths. This is required for
 412 # debuggers under Windows and OS/2 to find source files automatically.
 413 #
 414
 415 ifeq (,$(filter-out AIX OS2,$(OS_ARCH)))
 416 NEED_ABSOLUTE_PATH = 1
 417 endif
 418
 419 ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
 420 NEED_ABSOLUTE_PATH = 1
 421 endif
 422
 423 ifdef NEED_ABSOLUTE_PATH
 424 PWD := $(shell pwd)
 425 abspath = $(if $(findstring :,$(1)),$(1),$(if $(filter /%,$(1)),$(1),$(PWD)/$(1)))
 426 endif
 427
 428 $(OBJDIR)/%.$(OBJ_SUFFIX): %.cpp
 429         @$(MAKE_OBJDIR)
 430 ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
 431         $(CCC) -Fo$@ -c $(CCCFLAGS) $(call abspath,$<)
 432 else
 433 ifeq ($(MOZ_OS2_TOOLS),VACPP)
 434         $(CCC) -Fo$@ -c $(CCCFLAGS) $(call abspath,$<)
 435 else
 436 ifdef NEED_ABSOLUTE_PATH
 437         $(CCC) -o $@ -c $(CCCFLAGS) $(call abspath,$<)
 438 else
 439         $(CCC) -o $@ -c $(CCCFLAGS) $<
 440 endif
 441 endif
 442 endif
 443
 444 WCCFLAGS1 = $(subst /,\\,$(CFLAGS))
 445 WCCFLAGS2 = $(subst -I,-i=,$(WCCFLAGS1))
 446 WCCFLAGS3 = $(subst -D,-d,$(WCCFLAGS2))
 447 $(OBJDIR)/%.$(OBJ_SUFFIX): %.c
 448         @$(MAKE_OBJDIR)
 449 ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
 450         $(CC) -Fo$@ -c $(CFLAGS) $(call abspath,$<)
 451 else
 452 ifeq ($(MOZ_OS2_TOOLS),VACPP)
 453         $(CC) -Fo$@ -c $(CFLAGS) $(call abspath,$<)
 454 else
 455 ifdef NEED_ABSOLUTE_PATH
 456         $(CC) -o $@ -c $(CFLAGS) $(call abspath,$<)
 457 else
 458         $(CC) -o $@ -c $(CFLAGS) $<
 459 endif
 460 endif
 461 endif
 462
 463
 464 $(OBJDIR)/%.$(OBJ_SUFFIX): %.s
 465         @$(MAKE_OBJDIR)
 466         $(AS) -o $@ $(ASFLAGS) -c $<
 467
 468 ifeq ($(MOZ_OS2_TOOLS),VACPP)
 469 $(OBJDIR)/%.$(OBJ_SUFFIX): %.asm
 470         @$(MAKE_OBJDIR)
 471         $(AS) -Fdo:./$(OBJDIR) $(ASFLAGS) $<
 472 endif
 473
 474 %.i: %.c
 475         $(CC) -C -E $(CFLAGS) $< > $*.i
 476
 477 %: %.pl
 478         rm -f $@; cp $< $@; chmod +x $@
 479
 480 #
 481 # HACK ALERT
 482 #
 483 # The only purpose of this rule is to pass Mozilla's Tinderbox depend
 484 # builds (http://tinderbox.mozilla.org/showbuilds.cgi).  Mozilla's
 485 # Tinderbox builds NSPR continuously as part of the Mozilla client.
 486 # Because NSPR's make depend is not implemented, whenever we change
 487 # an NSPR header file, the depend build does not recompile the NSPR
 488 # files that depend on the header.
 489 #
 490 # This rule makes all the objects depend on a dummy header file.
 491 # Touch this dummy header file to force the depend build to recompile
 492 # everything.
 493 #
 494 # This rule should be removed when make depend is implemented.
 495 #
 496
 497 DUMMY_DEPEND_H = $(topsrcdir)/config/prdepend.h
 498
 499 $(filter $(OBJDIR)/%.$(OBJ_SUFFIX),$(OBJS)): $(OBJDIR)/%.$(OBJ_SUFFIX): $(DUMMY_DEPEND_H)
 500
 501 # END OF HACK
 502
 503 ################################################################################
 504 # Special gmake rules.
 505 ################################################################################
 506
 507 #
 508 # Re-define the list of default suffixes, so gmake won't have to churn through
 509 # hundreds of built-in suffix rules for stuff we don't need.
 510 #
 511 .SUFFIXES:
 512 .SUFFIXES: .a .$(OBJ_SUFFIX) .c .cpp .s .h .i .pl
 513
 514 #
 515 # Fake targets.  Always run these rules, even if a file/directory with that
 516 # name already exists.
 517 #
 518 .PHONY: all alltags clean export install libs realclean release
 519
 520 #
 521 # List the target pattern of an implicit rule as a dependency of the
 522 # special target .PRECIOUS to preserve intermediate files made by
 523 # implicit rules whose target patterns match that file's name.
 524 # (See GNU Make documentation, Edition 0.51, May 1996, Sec. 10.4,
 525 # p. 107.)
 526 #
 527 .PRECIOUS: $(OBJDIR)/%.$(OBJ_SUFFIX)