libstdc++-v3/src/Makefile.am

   1 ## Makefile for the C++11 sources of the GNU C++ Standard library.
   2 ##
   3 ## Copyright (C) 1997-2022 Free Software Foundation, Inc.
   4 ##
   5 ## This file is part of the libstdc++ version 3 distribution.
   6 ## Process this file with automake to produce Makefile.in.
   7
   8 ## This file is part of the GNU ISO C++ Library.  This library is free
   9 ## software; you can redistribute it and/or modify it under the
  10 ## terms of the GNU General Public License as published by the
  11 ## Free Software Foundation; either version 3, or (at your option)
  12 ## any later version.
  13
  14 ## This library is distributed in the hope that it will be useful,
  15 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ## GNU General Public License for more details.
  18
  19 ## You should have received a copy of the GNU General Public License along
  20 ## with this library; see the file COPYING3.  If not see
  21 ## <http://www.gnu.org/licenses/>.
  22
  23 include $(top_srcdir)/fragment.am
  24
  25 if ENABLE_FILESYSTEM_TS
  26 filesystem_dir = filesystem
  27 else
  28 filesystem_dir =
  29 endif
  30
  31 ## Keep this list sync'd with acinclude.m4:GLIBCXX_CONFIGURE.
  32 SUBDIRS = c++98 c++11 c++17 c++20 $(filesystem_dir)
  33
  34 # Cross compiler support.
  35 if VTV_CYGMIN
  36 toolexeclib_LTLIBRARIES = libvtv.la libstdc++.la
  37 else
  38 toolexeclib_LTLIBRARIES = libstdc++.la
  39 endif
  40
  41 if VTV_CYGMIN
  42 vtv_stubs.cc:
  43         rm -f $@
  44         $(LN_S) $(toplevel_srcdir)/libstdc++-v3/libsupc++/vtv_stubs.cc $@
  45
  46 libvtv_la_SOURCES = vtv_stubs.cc
  47 libvtv_la_LDFLAGS = $(lt_host_flags)
  48
  49 libvtv_la_AM_CXXFLAGS = \
  50         $(glibcxx_compiler_pic_flag) \
  51         $(XTEMPLATE_FLAGS) \
  52         -Wl,-u_vtable_map_vars_start,-u_vtable_map_vars_end \
  53         $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
  54
  55 libvtv_la_LINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) \
  56         $(LIBTOOLFLAGS) --mode=link $(CXXLD) $(libvtv_la_AM_CXXFLAGS) \
  57         $(CXXFLAGS) $(libvtv_la_LDFLAGS) $(LDFLAGS) -o $@
  58 endif
  59
  60 vpath % $(top_srcdir)/src/c++98
  61 vpath % $(top_srcdir)/src/c++11
  62 vpath % $(top_srcdir)/src/c++17
  63 vpath % $(top_srcdir)/src/c++20
  64 if ENABLE_FILESYSTEM_TS
  65 vpath % $(top_srcdir)/src/filesystem
  66 endif
  67
  68 if GLIBCXX_LDBL_COMPAT
  69 ldbl_compat_sources = compatibility-ldbl.cc
  70 else
  71 ldbl_compat_sources =
  72 endif
  73
  74 if GLIBCXX_LDBL_ALT128_COMPAT
  75 if ENABLE_DUAL_ABI
  76 ldbl_alt128_compat_cxx11_sources = \
  77         compatibility-ldbl-alt128-cxx11.cc
  78 else
  79 ldbl_alt128_compat_cxx11_sources =
  80 endif
  81 ldbl_alt128_compat_sources = \
  82         compatibility-ldbl-alt128.cc \
  83         ${ldbl_alt128_compat_cxx11_sources}
  84 else
  85 ldbl_alt128_compat_sources =
  86 endif
  87
  88
  89 parallel_compat_sources = \
  90         compatibility-parallel_list.cc  compatibility-parallel_list-2.cc
  91
  92
  93 cxx98_sources = \
  94         compatibility.cc \
  95         compatibility-debug_list.cc \
  96         compatibility-debug_list-2.cc \
  97         ${ldbl_compat_sources}
  98
  99 cxx11_sources = \
 100         compatibility-c++0x.cc \
 101         compatibility-atomic-c++0x.cc \
 102         compatibility-thread-c++0x.cc \
 103         compatibility-chrono.cc \
 104         compatibility-condvar.cc \
 105         ${ldbl_alt128_compat_sources}
 106
 107 libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources)
 108
 109 libstdc___la_LIBADD = \
 110         $(GLIBCXX_LIBS) \
 111         $(top_builddir)/libsupc++/libsupc++convenience.la \
 112         $(top_builddir)/src/c++98/libc++98convenience.la \
 113         $(top_builddir)/src/c++11/libc++11convenience.la \
 114         $(top_builddir)/src/c++17/libc++17convenience.la \
 115         $(top_builddir)/src/c++20/libc++20convenience.la
 116
 117 libstdc___la_DEPENDENCIES = \
 118         ${version_dep} \
 119         $(top_builddir)/libsupc++/libsupc++convenience.la \
 120         $(top_builddir)/src/c++98/libc++98convenience.la \
 121         $(top_builddir)/src/c++11/libc++11convenience.la \
 122         $(top_builddir)/src/c++17/libc++17convenience.la \
 123         $(top_builddir)/src/c++20/libc++20convenience.la
 124
 125 libstdc___la_LDFLAGS = \
 126         -version-info $(libtool_VERSION) ${version_arg} -lm
 127
 128 libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS) $(lt_host_flags)
 129
 130 # Use special rules for compatibility-ldbl.cc compilation, as we need to
 131 # pass -mlong-double-64, and not use -mabi={ieee,ibm}longdouble.
 132 if GLIBCXX_LDBL_COMPAT
 133 if GLIBCXX_LDBL_ALT128_COMPAT
 134 LTCXXCOMPILE64 = \
 135   $(filter-out -mabi=ieeelongdouble -mabi=ibmlongdouble,$(LTCXXCOMPILE))
 136 CXXCOMPILE64 = \
 137   $(filter-out -mabi=ieeelongdouble -mabi=ibmlongdouble,$(CXXCOMPILE))
 138 else
 139 LTCXXCOMPILE64 = $(LTCXXCOMPILE)
 140 CXXCOMPILE64 = $(CXXCOMPILE)
 141 endif
 142 compatibility-ldbl.lo: compatibility-ldbl.cc
 143         $(LTCXXCOMPILE64) $(LONG_DOUBLE_COMPAT_FLAGS) -c $<
 144 compatibility-ldbl.o: compatibility-ldbl.cc
 145         $(CXXCOMPILE64) $(LONG_DOUBLE_COMPAT_FLAGS) -c $<
 146 endif
 147
 148 # Use special rules for compatibility-ldbl-alt128.cc compilation, as we need to
 149 # ensure it is compiled with the correct flag.
 150 if GLIBCXX_LDBL_ALT128_COMPAT
 151 compatibility-ldbl-alt128.lo: compatibility-ldbl-alt128.cc
 152         $(LTCXXCOMPILE) $(LONG_DOUBLE_ALT128_COMPAT_FLAGS) -std=gnu++11 -c $<
 153 compatibility-ldbl-alt128.o: compatibility-ldbl-alt128.cc
 154         $(CXXCOMPILE) $(LONG_DOUBLE_ALT128_COMPAT_FLAGS) -std=gnu++11 -c $<
 155 if ENABLE_DUAL_ABI
 156 compatibility-ldbl-alt128-cxx11.lo: compatibility-ldbl-alt128-cxx11.cc
 157         $(LTCXXCOMPILE) $(LONG_DOUBLE_ALT128_COMPAT_FLAGS) -std=gnu++11 -c $<
 158 compatibility-ldbl-alt128-cxx11.o: compatibility-ldbl-alt128-cxx11.cc
 159         $(CXXCOMPILE) $(LONG_DOUBLE_ALT128_COMPAT_FLAGS) -std=gnu++11 -c $<
 160 endif
 161 endif
 162
 163 # Use special rules for C++11 files/objects.
 164 compatibility-c++0x.lo: compatibility-c++0x.cc
 165         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 166 compatibility-c++0x.o: compatibility-c++0x.cc
 167         $(CXXCOMPILE) -std=gnu++11 -c $<
 168
 169 compatibility-atomic-c++0x.lo: compatibility-atomic-c++0x.cc
 170         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 171 compatibility-atomic-c++0x.o: compatibility-atomic-c++0x.cc
 172         $(CXXCOMPILE) -std=gnu++11 -c $<
 173
 174 compatibility-thread-c++0x.lo: compatibility-thread-c++0x.cc
 175         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 176 compatibility-thread-c++0x.o: compatibility-thread-c++0x.cc
 177         $(CXXCOMPILE) -std=gnu++11 -c $<
 178
 179 compatibility-chrono.lo: compatibility-chrono.cc
 180         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 181 compatibility-chrono.o: compatibility-chrono.cc
 182         $(CXXCOMPILE) -std=gnu++11 -c $<
 183
 184 compatibility-condvar.lo: compatibility-condvar.cc
 185         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 186 compatibility-condvar.o: compatibility-condvar.cc
 187         $(CXXCOMPILE) -std=gnu++11 -c $<
 188
 189 # A note on compatibility and static libraries.
 190 #
 191 # static lib == linked against only this version, should not need compat
 192 # shared lib == linked against potentially all compat versions
 193 #
 194 # Thus, the shared libs have more compat symbols, which can be found
 195 # segregated in the sources with -D_GLIBCXX_SHARED.
 196 #
 197 # In the sub-directories of libsupc++, src/c++98, src/c++11, src/c++17,
 198 # src/c++20, only -prefer-pic objects are generated for the convenience
 199 # libraries.
 200 #
 201 # In the main src directory, make shared and static objects just for
 202 # the compat libraries. Shared objects are compiled with -prefer-pic
 203 # -D_GLIBCXX_SHARED and in the .libs sub-directory, static objects are
 204 # compiled with -prefer-pic (ie, -fPIC but not -D_GLIBCXX_SHARED) and
 205 # the main src directory.
 206 #
 207 # Why are objects destined for libstdc++.a compiled with -fPIC? First,
 208 # because -fPIC is not harmful to use for objects destined for static
 209 # libraries. In addition, using -fPIC will allow the use of static
 210 # libstdc++.a in the creation of other C++ shared libraries.
 211
 212 # AM_CXXFLAGS needs to be in each sub-directory so that it can be
 213 # modified in a per-library or per-sub-library way.  Need to manually
 214 # set this option because CONFIG_CXXFLAGS has to be after
 215 # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
 216 # as the occasion calls for it.
 217 AM_CXXFLAGS_PRE = \
 218         -std=gnu++98 \
 219         $(glibcxx_compiler_pic_flag) \
 220         $(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
 221         $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
 222
 223 AM_CXXFLAGS = $(filter-out -fvtable-verify=std,$(AM_CXXFLAGS_PRE))
 224
 225 # Libtool notes
 226
 227 # 1) In general, libtool expects an argument such as `--tag=CXX' when
 228 # using the C++ compiler, because that will enable the settings
 229 # detected when C++ support was being configured.  However, when no
 230 # such flag is given in the command line, libtool attempts to figure
 231 # it out by matching the compiler name in each configuration section
 232 # against a prefix of the command line.  The problem is that, if the
 233 # compiler name and its initial flags stored in the libtool
 234 # configuration file don't match those in the command line, libtool
 235 # can't decide which configuration to use, and it gives up.  The
 236 # correct solution is to add `--tag CXX' to LTCXXCOMPILE and maybe
 237 # CXXLINK, just after $(LIBTOOL), so that libtool doesn't have to
 238 # attempt to infer which configuration to use.
 239 #
 240 # The second tag argument, `--tag disable-shared` means that libtool
 241 # only compiles each source once, for static objects. In actuality,
 242 # glibcxx_lt_pic_flag and glibcxx_compiler_shared_flag are added to
 243 # the libtool command that is used create the object, which is
 244 # suitable for shared libraries.  The `--tag disable-shared` must be
 245 # placed after --tag CXX lest things CXX undo the affect of
 246 # disable-shared.
 247
 248 # 2) Need to explicitly set LTCXXCOMPILE so that EXTRA_CXX_FLAGS is
 249 # last. (That way, things like -O2 passed down from the toplevel can
 250 # be overridden by --enable-debug and --enable-cxx-flags.)
 251 LTCXXCOMPILE = \
 252         $(LIBTOOL) --tag CXX \
 253         $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 254         --mode=compile $(CXX) $(INCLUDES) \
 255         $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS)
 256
 257 LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
 258
 259 # 3) We'd have a problem when building the shared libstdc++ object if
 260 # the rules automake generates would be used.  We cannot allow g++ to
 261 # be used since this would add -lstdc++ to the link line which of
 262 # course is problematic at this point.  So, we get the top-level
 263 # directory to configure libstdc++-v3 to use gcc as the C++
 264 # compilation driver.
 265 CXXLINK = \
 266         $(LIBTOOL) --tag CXX \
 267         $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 268         --mode=link $(CXX) \
 269         $(VTV_CXXLINKFLAGS) \
 270         $(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
 271
 272 # Symbol versioning for shared libraries.
 273 if ENABLE_SYMVERS
 274 libstdc++-symbols.ver:  ${glibcxx_srcdir}/$(SYMVER_FILE) \
 275                 $(port_specific_symbol_files)
 276         cp ${glibcxx_srcdir}/$(SYMVER_FILE) $@.tmp
 277         chmod +w $@.tmp
 278         if test "x$(port_specific_symbol_files)" != x; then \
 279           if grep '^# Appended to version file.' \
 280                $(port_specific_symbol_files) > /dev/null 2>&1; then \
 281             cat $(port_specific_symbol_files) >> $@.tmp; \
 282           else \
 283             sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \
 284             sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \
 285             cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \
 286             rm tmp.top tmp.bottom; \
 287           fi; \
 288         fi
 289         $(EGREP) -v '^[         ]*#(#| |$$)' $@.tmp | \
 290           $(CC) -E -P -include $(CONFIG_HEADER) - > $@ || (rm -f $@ ; exit 1)
 291         rm -f $@.tmp
 292
 293 CLEANFILES = libstdc++-symbols.ver
 294
 295 if ENABLE_SYMVERS_GNU
 296 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 297 version_dep = libstdc++-symbols.ver
 298 endif
 299 if ENABLE_SYMVERS_GNU_NAMESPACE
 300 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 301 version_dep = libstdc++-symbols.ver
 302 endif
 303 if ENABLE_SYMVERS_SUN
 304 version_arg = -Wl,-M,libstdc++-symbols.ver-sun
 305 version_dep = libstdc++-symbols.ver-sun
 306 libstdc++-symbols.ver-sun : libstdc++-symbols.ver \
 307                 $(toplevel_srcdir)/contrib/make_sunver.pl \
 308                 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
 309         CXXFILT="$(CXXFILT)"; export CXXFILT; \
 310         perl $(toplevel_srcdir)/contrib/make_sunver.pl \
 311           libstdc++-symbols.ver \
 312           $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
 313          `echo ' $(libstdc___la_LIBADD) ' | \
 314             sed -e 's,/\([^/.]*\)\.la,/.libs/\1.a,g' -e 's/ -l[^ ]* / /'` \
 315          > $@ || (rm -f $@ ; exit 1)
 316 endif
 317 if ENABLE_SYMVERS_DARWIN
 318 version_arg = -Wl,-exported_symbols_list,libstdc++-symbols.explist
 319 version_dep = libstdc++-symbols.explist
 320 libstdc++-symbols.explist : libstdc++-symbols.ver \
 321                 ${glibcxx_srcdir}/scripts/make_exports.pl \
 322                 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
 323         perl ${glibcxx_srcdir}/scripts/make_exports.pl \
 324           libstdc++-symbols.ver \
 325           $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
 326          `echo $(libstdc___la_LIBADD) | \
 327             sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
 328          > $@ || (rm -f $@ ; exit 1)
 329 endif
 330
 331 CLEANFILES += $(version_dep)
 332 else
 333 version_arg =
 334 version_dep =
 335 endif
 336
 337
 338 # Control additional build primary rules.
 339 all-once: libstdc++convenience.la $(STAMP_DEBUG)
 340 install-data-once: $(STAMP_INSTALL_DEBUG)
 341
 342 all-local: all-once
 343 install-data-local: install-data-once
 344 clean-local:
 345         rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG)
 346
 347 # Make a non-installed convenience library, so that --disable-static
 348 # may work.
 349 libstdc++convenience.la: $(toolexeclib_LTLIBRARIES)
 350         $(CXXLINK) $(libstdc___la_LIBADD) $(LIBS); \
 351         if test ! -f .libs/libstdc++.a; then \
 352           cp .libs/libstdc++convenience.a .libs/libstdc++.a; \
 353         fi; \
 354         echo `date` > stamp-libstdc++convenience;
 355
 356 # Added rules.
 357 # 1 debug library
 358 # 2 supra-convenience library
 359 if GLIBCXX_BUILD_DEBUG
 360 STAMP_DEBUG = build-debug
 361 STAMP_INSTALL_DEBUG = install-debug
 362 CLEAN_DEBUG = debug
 363 else
 364 STAMP_DEBUG =
 365 STAMP_INSTALL_DEBUG =
 366 CLEAN_DEBUG =
 367 endif
 368
 369 # Build a debug variant.
 370 # Take care to fix all possibly-relative paths.
 371 debugdir = ${glibcxx_builddir}/src/debug
 372 stamp-debug: Makefile $(foreach dir,$(SUBDIRS),$(dir)/Makefile)
 373         if test ! -d ${debugdir} || test ! -f ${debugdir}/Makefile ; then \
 374           mkdir -p ${debugdir}; \
 375           for d in $(SUBDIRS); do mkdir -p  ${debugdir}/$$d; done; \
 376           (cd ${debugdir}; \
 377           sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
 378               -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 379               -e 's/srcdir = \.\./srcdir = ..\/../' \
 380               -e 's/VPATH = \.\./VPATH = ..\/../' \
 381               -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
 382               -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 383           < ../Makefile > Makefile ; \
 384           for d in . $(SUBDIRS); do \
 385           sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
 386               -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 387               -e 's/srcdir = \.\./srcdir = ..\/../' \
 388               -e 's/VPATH = \.\./VPATH = ..\/../' \
 389               -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
 390               -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 391           < ../$$d/Makefile > $$d/Makefile ; \
 392           done) ; \
 393         fi; \
 394         echo `date` > stamp-debug;
 395
 396 build-debug: stamp-debug
 397           (cd ${debugdir}; \
 398           mv Makefile Makefile.tmp; \
 399           sed -e 's,all-local: all-once,all-local:,' \
 400               -e 's,install-data-local: install-data-once,install-data-local:,' \
 401               -e '/vpath/!s,src/c,src/debug/c,' \
 402           < Makefile.tmp > Makefile ; \
 403           rm -f Makefile.tmp ; \
 404           $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
 405           toolexeclibdir=$(glibcxx_toolexeclibdir)/debug all) ;
 406
 407 # Install debug library.
 408 install-debug: build-debug
 409         (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
 410         toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ;