libstdc++-v3/src/Makefile.am

   1 ## Makefile for the C++11 sources of the GNU C++ Standard library.
   2 ##
   3 ## Copyright (C) 1997-2019 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 $(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 if ENABLE_FILESYSTEM_TS
  64 vpath % $(top_srcdir)/src/filesystem
  65 endif
  66
  67 if GLIBCXX_LDBL_COMPAT
  68 ldbl_compat_sources = compatibility-ldbl.cc
  69 else
  70 ldbl_compat_sources =
  71 endif
  72
  73
  74 parallel_compat_sources = \
  75         compatibility-parallel_list.cc  compatibility-parallel_list-2.cc
  76
  77
  78 cxx98_sources = \
  79         compatibility.cc \
  80         compatibility-debug_list.cc \
  81         compatibility-debug_list-2.cc \
  82         ${ldbl_compat_sources}
  83
  84 cxx11_sources = \
  85         compatibility-c++0x.cc \
  86         compatibility-atomic-c++0x.cc \
  87         compatibility-thread-c++0x.cc \
  88         compatibility-chrono.cc \
  89         compatibility-condvar.cc
  90
  91 libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources)
  92
  93 libstdc___la_LIBADD = \
  94         $(GLIBCXX_LIBS) \
  95         $(top_builddir)/libsupc++/libsupc++convenience.la \
  96         $(top_builddir)/src/c++98/libc++98convenience.la \
  97         $(top_builddir)/src/c++11/libc++11convenience.la \
  98         $(top_builddir)/src/c++17/libc++17convenience.la
  99
 100 libstdc___la_DEPENDENCIES = \
 101         ${version_dep} \
 102         $(top_builddir)/libsupc++/libsupc++convenience.la \
 103         $(top_builddir)/src/c++98/libc++98convenience.la \
 104         $(top_builddir)/src/c++11/libc++11convenience.la \
 105         $(top_builddir)/src/c++17/libc++17convenience.la
 106
 107 libstdc___la_LDFLAGS = \
 108         -version-info $(libtool_VERSION) ${version_arg} -lm
 109
 110 libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS)
 111
 112 # Use special rules for compatibility-ldbl.cc compilation, as we need to
 113 # pass -mlong-double-64.
 114 if GLIBCXX_LDBL_COMPAT
 115 compatibility-ldbl.lo: compatibility-ldbl.cc
 116         $(LTCXXCOMPILE) $(LONG_DOUBLE_COMPAT_FLAGS) -c $<
 117 compatibility-ldbl.o: compatibility-ldbl.cc
 118         $(CXXCOMPILE) $(LONG_DOUBLE_COMPAT_FLAGS) -c $<
 119 endif
 120
 121 # Use special rules for C++11 files/objects.
 122 compatibility-c++0x.lo: compatibility-c++0x.cc
 123         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 124 compatibility-c++0x.o: compatibility-c++0x.cc
 125         $(CXXCOMPILE) -std=gnu++11 -c $<
 126
 127 compatibility-atomic-c++0x.lo: compatibility-atomic-c++0x.cc
 128         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 129 compatibility-atomic-c++0x.o: compatibility-atomic-c++0x.cc
 130         $(CXXCOMPILE) -std=gnu++11 -c $<
 131
 132 compatibility-thread-c++0x.lo: compatibility-thread-c++0x.cc
 133         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 134 compatibility-thread-c++0x.o: compatibility-thread-c++0x.cc
 135         $(CXXCOMPILE) -std=gnu++11 -c $<
 136
 137 compatibility-chrono.lo: compatibility-chrono.cc
 138         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 139 compatibility-chrono.o: compatibility-chrono.cc
 140         $(CXXCOMPILE) -std=gnu++11 -c $<
 141
 142 compatibility-condvar.lo: compatibility-condvar.cc
 143         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 144 compatibility-condvar.o: compatibility-condvar.cc
 145         $(CXXCOMPILE) -std=gnu++11 -c $<
 146
 147 # A note on compatibility and static libraries.
 148 #
 149 # static lib == linked against only this version, should not need compat
 150 # shared lib == linked against potentially all compat versions
 151 #
 152 # Thus, the shared libs have more compat symbols, which can be found
 153 # segregated in the sources with -D_GLIBCXX_SHARED.
 154 #
 155 # In the sub-directories of libsupc++, src/c++98, src/c++11, src/c++17,
 156 # only -prefer-pic objects are generated for the convenience libraries.
 157 #
 158 # In the main src directory, make shared and static objects just for
 159 # the compat libraries. Shared objects are compiled with -prefer-pic
 160 # -D_GLIBCXX_SHARED and in the .libs sub-directory, static objects are
 161 # compiled with -prefer-pic (ie, -fPIC but not -D_GLIBCXX_SHARED) and
 162 # the main src directory.
 163 #
 164 # Why are objects destined for libstdc++.a compiled with -fPIC? First,
 165 # because -fPIC is not harmful to use for objects destined for static
 166 # libraries. In addition, using -fPIC will allow the use of static
 167 # libstdc++.a in the creation of other C++ shared libraries.
 168
 169 # AM_CXXFLAGS needs to be in each sub-directory so that it can be
 170 # modified in a per-library or per-sub-library way.  Need to manually
 171 # set this option because CONFIG_CXXFLAGS has to be after
 172 # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
 173 # as the occasion calls for it.
 174 AM_CXXFLAGS = \
 175         -std=gnu++98 \
 176         $(glibcxx_compiler_pic_flag) \
 177         $(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
 178         $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
 179
 180 # Libtool notes
 181
 182 # 1) In general, libtool expects an argument such as `--tag=CXX' when
 183 # using the C++ compiler, because that will enable the settings
 184 # detected when C++ support was being configured.  However, when no
 185 # such flag is given in the command line, libtool attempts to figure
 186 # it out by matching the compiler name in each configuration section
 187 # against a prefix of the command line.  The problem is that, if the
 188 # compiler name and its initial flags stored in the libtool
 189 # configuration file don't match those in the command line, libtool
 190 # can't decide which configuration to use, and it gives up.  The
 191 # correct solution is to add `--tag CXX' to LTCXXCOMPILE and maybe
 192 # CXXLINK, just after $(LIBTOOL), so that libtool doesn't have to
 193 # attempt to infer which configuration to use.
 194 #
 195 # The second tag argument, `--tag disable-shared` means that libtool
 196 # only compiles each source once, for static objects. In actuality,
 197 # glibcxx_lt_pic_flag and glibcxx_compiler_shared_flag are added to
 198 # the libtool command that is used create the object, which is
 199 # suitable for shared libraries.  The `--tag disable-shared` must be
 200 # placed after --tag CXX lest things CXX undo the affect of
 201 # disable-shared.
 202
 203 # 2) Need to explicitly set LTCXXCOMPILE so that EXTRA_CXX_FLAGS is
 204 # last. (That way, things like -O2 passed down from the toplevel can
 205 # be overridden by --enable-debug and --enable-cxx-flags.)
 206 LTCXXCOMPILE = \
 207         $(LIBTOOL) --tag CXX \
 208         $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 209         --mode=compile $(CXX) $(INCLUDES) \
 210         $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS)
 211
 212 LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
 213
 214 # 3) We'd have a problem when building the shared libstdc++ object if
 215 # the rules automake generates would be used.  We cannot allow g++ to
 216 # be used since this would add -lstdc++ to the link line which of
 217 # course is problematic at this point.  So, we get the top-level
 218 # directory to configure libstdc++-v3 to use gcc as the C++
 219 # compilation driver.
 220 CXXLINK = \
 221         $(LIBTOOL) --tag CXX \
 222         $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 223         --mode=link $(CXX) \
 224         $(VTV_CXXLINKFLAGS) \
 225         $(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
 226
 227 # Symbol versioning for shared libraries.
 228 if ENABLE_SYMVERS
 229 libstdc++-symbols.ver:  ${glibcxx_srcdir}/$(SYMVER_FILE) \
 230                 $(port_specific_symbol_files)
 231         cp ${glibcxx_srcdir}/$(SYMVER_FILE) $@.tmp
 232         chmod +w $@.tmp
 233         if test "x$(port_specific_symbol_files)" != x; then \
 234           if grep '^# Appended to version file.' \
 235                $(port_specific_symbol_files) > /dev/null 2>&1; then \
 236             cat $(port_specific_symbol_files) >> $@.tmp; \
 237           else \
 238             sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \
 239             sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \
 240             cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \
 241             rm tmp.top tmp.bottom; \
 242           fi; \
 243         fi
 244         $(EGREP) -v '^[         ]*#(#| |$$)' $@.tmp | \
 245           $(CC) -E -P -include $(CONFIG_HEADER) - > $@ || (rm -f $@ ; exit 1)
 246         rm -f $@.tmp
 247
 248 CLEANFILES = libstdc++-symbols.ver
 249
 250 if ENABLE_SYMVERS_GNU
 251 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 252 version_dep = libstdc++-symbols.ver
 253 endif
 254 if ENABLE_SYMVERS_GNU_NAMESPACE
 255 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 256 version_dep = libstdc++-symbols.ver
 257 endif
 258 if ENABLE_SYMVERS_SUN
 259 version_arg = -Wl,-M,libstdc++-symbols.ver-sun
 260 version_dep = libstdc++-symbols.ver-sun
 261 libstdc++-symbols.ver-sun : libstdc++-symbols.ver \
 262                 $(toplevel_srcdir)/contrib/make_sunver.pl \
 263                 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
 264         CXXFILT="$(CXXFILT)"; export CXXFILT; \
 265         perl $(toplevel_srcdir)/contrib/make_sunver.pl \
 266           libstdc++-symbols.ver \
 267           $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
 268          `echo $(libstdc___la_LIBADD) | \
 269             sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
 270          > $@ || (rm -f $@ ; exit 1)
 271 endif
 272 if ENABLE_SYMVERS_DARWIN
 273 version_arg = -Wl,-exported_symbols_list,libstdc++-symbols.explist
 274 version_dep = libstdc++-symbols.explist
 275 libstdc++-symbols.explist : libstdc++-symbols.ver \
 276                 ${glibcxx_srcdir}/scripts/make_exports.pl \
 277                 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
 278         perl ${glibcxx_srcdir}/scripts/make_exports.pl \
 279           libstdc++-symbols.ver \
 280           $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
 281          `echo $(libstdc___la_LIBADD) | \
 282             sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
 283          > $@ || (rm -f $@ ; exit 1)
 284 endif
 285
 286 CLEANFILES += $(version_dep)
 287 else
 288 version_arg =
 289 version_dep =
 290 endif
 291
 292
 293 # Control additional build primary rules.
 294 all-once: libstdc++convenience.la $(STAMP_DEBUG)
 295 install-data-once: $(STAMP_INSTALL_DEBUG)
 296
 297 all-local: all-once
 298 install-data-local: install-data-once
 299 clean-local:
 300         rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG)
 301
 302 # Make a non-installed convenience library, so that --disable-static
 303 # may work.
 304 libstdc++convenience.la: $(toolexeclib_LTLIBRARIES)
 305         $(CXXLINK) $(libstdc___la_LIBADD) $(LIBS); \
 306         if test ! -f .libs/libstdc++.a; then \
 307           cp .libs/libstdc++convenience.a .libs/libstdc++.a; \
 308         fi; \
 309         echo `date` > stamp-libstdc++convenience;
 310
 311 # Added rules.
 312 # 1 debug library
 313 # 2 supra-convenience library
 314 if GLIBCXX_BUILD_DEBUG
 315 STAMP_DEBUG = build-debug
 316 STAMP_INSTALL_DEBUG = install-debug
 317 CLEAN_DEBUG = debug
 318 else
 319 STAMP_DEBUG =
 320 STAMP_INSTALL_DEBUG =
 321 CLEAN_DEBUG =
 322 endif
 323
 324 # Build a debug variant.
 325 # Take care to fix all possibly-relative paths.
 326 debugdir = ${glibcxx_builddir}/src/debug
 327 stamp-debug:
 328         if test ! -d ${debugdir}; then \
 329           mkdir -p ${debugdir}; \
 330           for d in $(SUBDIRS); do mkdir -p  ${debugdir}/$$d; done; \
 331           (cd ${debugdir}; \
 332           sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
 333               -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 334               -e 's/srcdir = \.\./srcdir = ..\/../' \
 335               -e 's/VPATH = \.\./VPATH = ..\/../' \
 336               -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
 337               -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 338           < ../Makefile > Makefile ; \
 339           for d in . $(SUBDIRS); do \
 340           sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
 341               -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 342               -e 's/srcdir = \.\./srcdir = ..\/../' \
 343               -e 's/VPATH = \.\./VPATH = ..\/../' \
 344               -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
 345               -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 346           < ../$$d/Makefile > $$d/Makefile ; \
 347           done) ; \
 348         fi; \
 349         echo `date` > stamp-debug;
 350
 351 build-debug: stamp-debug
 352           (cd ${debugdir}; \
 353           mv Makefile Makefile.tmp; \
 354           sed -e 's,all-local: all-once,all-local:,' \
 355               -e 's,install-data-local: install-data-once,install-data-local:,' \
 356               -e '/vpath/!s,src/c,src/debug/c,' \
 357           < Makefile.tmp > Makefile ; \
 358           rm -f Makefile.tmp ; \
 359           $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
 360           toolexeclibdir=$(glibcxx_toolexeclibdir)/debug all) ;
 361
 362 # Install debug library.
 363 install-debug: build-debug
 364         (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
 365         toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ;