libstdc++-v3/src/Makefile.am

   1 ## Makefile for the C++11 sources of the GNU C++ Standard library.
   2 ##
   3 ## Copyright (C) 1997-2017 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 SUBDIRS = c++98 c++11 $(filesystem_dir)
  32
  33 # Cross compiler support.
  34 if VTV_CYGMIN
  35 toolexeclib_LTLIBRARIES = libvtv.la libstdc++.la
  36 else
  37 toolexeclib_LTLIBRARIES = libstdc++.la
  38 endif
  39
  40 if VTV_CYGMIN
  41 vtv_stubs.cc:
  42         rm -f $@
  43         $(LN_S) $(toplevel_srcdir)/libstdc++-v3/libsupc++/vtv_stubs.cc $@
  44
  45 libvtv_la_SOURCES = vtv_stubs.cc
  46 libvtv_la_LDFLAGS = $(lt_host_flags)
  47
  48 libvtv_la_AM_CXXFLAGS = \
  49         $(glibcxx_compiler_pic_flag) \
  50         $(XTEMPLATE_FLAGS) \
  51         -Wl,-u_vtable_map_vars_start,-u_vtable_map_vars_end \
  52         $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
  53
  54 libvtv_la_LINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) \
  55         $(LIBTOOLFLAGS) --mode=link $(CXXLD) $(libvtv_la_AM_CXXFLAGS) \
  56         $(CXXFLAGS) $(libvtv_la_LDFLAGS) $(LDFLAGS) -o $@
  57 endif
  58
  59 vpath % $(top_srcdir)/src/c++98
  60 vpath % $(top_srcdir)/src/c++11
  61 if ENABLE_FILESYSTEM_TS
  62 vpath % $(top_srcdir)/src/filesystem
  63 endif
  64
  65 if GLIBCXX_LDBL_COMPAT
  66 ldbl_compat_sources = compatibility-ldbl.cc
  67 else
  68 ldbl_compat_sources =
  69 endif
  70
  71
  72 parallel_compat_sources = \
  73         compatibility-parallel_list.cc  compatibility-parallel_list-2.cc
  74
  75
  76 cxx98_sources = \
  77         compatibility.cc \
  78         compatibility-debug_list.cc \
  79         compatibility-debug_list-2.cc \
  80         ${ldbl_compat_sources}
  81
  82 cxx11_sources = \
  83         compatibility-c++0x.cc \
  84         compatibility-atomic-c++0x.cc \
  85         compatibility-thread-c++0x.cc \
  86         compatibility-chrono.cc \
  87         compatibility-condvar.cc
  88
  89 libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources)
  90
  91 libstdc___la_LIBADD = \
  92         $(GLIBCXX_LIBS) \
  93         $(top_builddir)/libsupc++/libsupc++convenience.la \
  94         $(top_builddir)/src/c++98/libc++98convenience.la \
  95         $(top_builddir)/src/c++11/libc++11convenience.la
  96
  97 libstdc___la_DEPENDENCIES = \
  98         ${version_dep} \
  99         $(top_builddir)/libsupc++/libsupc++convenience.la \
 100         $(top_builddir)/src/c++98/libc++98convenience.la \
 101         $(top_builddir)/src/c++11/libc++11convenience.la
 102
 103 libstdc___la_LDFLAGS = \
 104         -version-info $(libtool_VERSION) ${version_arg} -lm
 105
 106 libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS)
 107
 108 # Use special rules for compatibility-ldbl.cc compilation, as we need to
 109 # pass -mlong-double-64.
 110 if GLIBCXX_LDBL_COMPAT
 111 compatibility-ldbl.lo: compatibility-ldbl.cc
 112         $(LTCXXCOMPILE) $(LONG_DOUBLE_COMPAT_FLAGS) -c $<
 113 compatibility-ldbl.o: compatibility-ldbl.cc
 114         $(CXXCOMPILE) $(LONG_DOUBLE_COMPAT_FLAGS) -c $<
 115 endif
 116
 117 # Use special rules for C++11 files/objects.
 118 compatibility-c++0x.lo: compatibility-c++0x.cc
 119         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 120 compatibility-c++0x.o: compatibility-c++0x.cc
 121         $(CXXCOMPILE) -std=gnu++11 -c $<
 122
 123 compatibility-atomic-c++0x.lo: compatibility-atomic-c++0x.cc
 124         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 125 compatibility-atomic-c++0x.o: compatibility-atomic-c++0x.cc
 126         $(CXXCOMPILE) -std=gnu++11 -c $<
 127
 128 compatibility-thread-c++0x.lo: compatibility-thread-c++0x.cc
 129         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 130 compatibility-thread-c++0x.o: compatibility-thread-c++0x.cc
 131         $(CXXCOMPILE) -std=gnu++11 -c $<
 132
 133 compatibility-chrono.lo: compatibility-chrono.cc
 134         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 135 compatibility-chrono.o: compatibility-chrono.cc
 136         $(CXXCOMPILE) -std=gnu++11 -c $<
 137
 138 compatibility-condvar.lo: compatibility-condvar.cc
 139         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 140 compatibility-condvar.o: compatibility-condvar.cc
 141         $(CXXCOMPILE) -std=gnu++11 -c $<
 142
 143 # A note on compatibility and static libraries.
 144 #
 145 # static lib == linked against only this version, should not need compat
 146 # shared lib == linked against potentially all compat versions
 147 #
 148 # Thus, the shared libs have more compat symbols, which can be found
 149 # segregated in the sources with -D_GLIBCXX_SHARED.
 150 #
 151 # In the sub-directories of libsupc++, src/c++98, src/c++11, only
 152 # -prefer-pic objects are generated for the convenience libraries.
 153 #
 154 # In the main src directory, make shared and static objects just for
 155 # the compat libraries. Shared objects are compiled with -prefer-pic
 156 # -D_GLIBCXX_SHARED and in the .libs sub-directory, static objects are
 157 # compiled with -prefer-pic (ie, -fPIC but not -D_GLIBCXX_SHARED) and
 158 # the main src directory.
 159 #
 160 # Why are objects destined for libstdc++.a compiled with -fPIC? First,
 161 # because -fPIC is not harmful to use for objects destined for static
 162 # libraries. In addition, using -fPIC will allow the use of static
 163 # libstdc++.a in the creation of other C++ shared libraries.
 164
 165 # AM_CXXFLAGS needs to be in each sub-directory so that it can be
 166 # modified in a per-library or per-sub-library way.  Need to manually
 167 # set this option because CONFIG_CXXFLAGS has to be after
 168 # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
 169 # as the occasion calls for it.
 170 AM_CXXFLAGS = \
 171         -std=gnu++98 \
 172         $(glibcxx_compiler_pic_flag) \
 173         $(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
 174         $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
 175
 176 # Libtool notes
 177
 178 # 1) In general, libtool expects an argument such as `--tag=CXX' when
 179 # using the C++ compiler, because that will enable the settings
 180 # detected when C++ support was being configured.  However, when no
 181 # such flag is given in the command line, libtool attempts to figure
 182 # it out by matching the compiler name in each configuration section
 183 # against a prefix of the command line.  The problem is that, if the
 184 # compiler name and its initial flags stored in the libtool
 185 # configuration file don't match those in the command line, libtool
 186 # can't decide which configuration to use, and it gives up.  The
 187 # correct solution is to add `--tag CXX' to LTCXXCOMPILE and maybe
 188 # CXXLINK, just after $(LIBTOOL), so that libtool doesn't have to
 189 # attempt to infer which configuration to use.
 190 #
 191 # The second tag argument, `--tag disable-shared` means that libtool
 192 # only compiles each source once, for static objects. In actuality,
 193 # glibcxx_lt_pic_flag and glibcxx_compiler_shared_flag are added to
 194 # the libtool command that is used create the object, which is
 195 # suitable for shared libraries.  The `--tag disable-shared` must be
 196 # placed after --tag CXX lest things CXX undo the affect of
 197 # disable-shared.
 198
 199 # 2) Need to explicitly set LTCXXCOMPILE so that EXTRA_CXX_FLAGS is
 200 # last. (That way, things like -O2 passed down from the toplevel can
 201 # be overridden by --enable-debug and --enable-cxx-flags.)
 202 LTCXXCOMPILE = \
 203         $(LIBTOOL) --tag CXX \
 204         $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 205         --mode=compile $(CXX) $(INCLUDES) \
 206         $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS)
 207
 208 LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
 209
 210 # 3) We'd have a problem when building the shared libstdc++ object if
 211 # the rules automake generates would be used.  We cannot allow g++ to
 212 # be used since this would add -lstdc++ to the link line which of
 213 # course is problematic at this point.  So, we get the top-level
 214 # directory to configure libstdc++-v3 to use gcc as the C++
 215 # compilation driver.
 216 CXXLINK = \
 217         $(LIBTOOL) --tag CXX \
 218         $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 219         --mode=link $(CXX) \
 220         $(VTV_CXXLINKFLAGS) \
 221         $(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
 222
 223 # Symbol versioning for shared libraries.
 224 if ENABLE_SYMVERS
 225 libstdc++-symbols.ver:  ${glibcxx_srcdir}/$(SYMVER_FILE) \
 226                 $(port_specific_symbol_files)
 227         cp ${glibcxx_srcdir}/$(SYMVER_FILE) $@.tmp
 228         chmod +w $@.tmp
 229         if test "x$(port_specific_symbol_files)" != x; then \
 230           if grep '^# Appended to version file.' \
 231                $(port_specific_symbol_files) > /dev/null 2>&1; then \
 232             cat $(port_specific_symbol_files) >> $@.tmp; \
 233           else \
 234             sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \
 235             sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \
 236             cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \
 237             rm tmp.top tmp.bottom; \
 238           fi; \
 239         fi
 240         $(EGREP) -v '^[         ]*#(#| |$$)' $@.tmp | \
 241           $(CC) -E -P -include $(CONFIG_HEADER) - > $@ || (rm -f $@ ; exit 1)
 242         rm -f $@.tmp
 243
 244 CLEANFILES = libstdc++-symbols.ver
 245
 246 if ENABLE_SYMVERS_GNU
 247 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 248 version_dep = libstdc++-symbols.ver
 249 endif
 250 if ENABLE_SYMVERS_GNU_NAMESPACE
 251 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 252 version_dep = libstdc++-symbols.ver
 253 endif
 254 if ENABLE_SYMVERS_SUN
 255 version_arg = -Wl,-M,libstdc++-symbols.ver-sun
 256 version_dep = libstdc++-symbols.ver-sun
 257 libstdc++-symbols.ver-sun : libstdc++-symbols.ver \
 258                 $(toplevel_srcdir)/contrib/make_sunver.pl \
 259                 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
 260         CXXFILT="$(CXXFILT)"; export CXXFILT; \
 261         perl $(toplevel_srcdir)/contrib/make_sunver.pl \
 262           libstdc++-symbols.ver \
 263           $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
 264          `echo $(libstdc___la_LIBADD) | \
 265             sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
 266          > $@ || (rm -f $@ ; exit 1)
 267 endif
 268 if ENABLE_SYMVERS_DARWIN
 269 version_arg = -Wl,-exported_symbols_list,libstdc++-symbols.explist
 270 version_dep = libstdc++-symbols.explist
 271 libstdc++-symbols.explist : libstdc++-symbols.ver \
 272                 ${glibcxx_srcdir}/scripts/make_exports.pl \
 273                 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
 274         perl ${glibcxx_srcdir}/scripts/make_exports.pl \
 275           libstdc++-symbols.ver \
 276           $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
 277          `echo $(libstdc___la_LIBADD) | \
 278             sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
 279          > $@ || (rm -f $@ ; exit 1)
 280 endif
 281
 282 CLEANFILES += $(version_dep)
 283 else
 284 version_arg =
 285 version_dep =
 286 endif
 287
 288
 289 # Control additional build primary rules.
 290 all-once: libstdc++convenience.la $(STAMP_DEBUG)
 291 install-data-once: $(STAMP_INSTALL_DEBUG)
 292
 293 all-local: all-once
 294 install-data-local: install-data-once
 295 clean-local:
 296         rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG)
 297
 298 # Make a non-installed convenience library, so that --disable-static
 299 # may work.
 300 libstdc++convenience.la: $(toolexeclib_LTLIBRARIES)
 301         $(CXXLINK) $(libstdc___la_LIBADD) $(LIBS); \
 302         if test ! -f .libs/libstdc++.a; then \
 303           cp .libs/libstdc++convenience.a .libs/libstdc++.a; \
 304         fi; \
 305         echo `date` > stamp-libstdc++convenience;
 306
 307 # Added rules.
 308 # 1 debug library
 309 # 2 supra-convenience library
 310 if GLIBCXX_BUILD_DEBUG
 311 STAMP_DEBUG = build-debug
 312 STAMP_INSTALL_DEBUG = install-debug
 313 CLEAN_DEBUG = debug
 314 else
 315 STAMP_DEBUG =
 316 STAMP_INSTALL_DEBUG =
 317 CLEAN_DEBUG =
 318 endif
 319
 320 # Build a debug variant.
 321 # Take care to fix all possibly-relative paths.
 322 debugdir = ${glibcxx_builddir}/src/debug
 323 stamp-debug:
 324         if test ! -d ${debugdir}; then \
 325           mkdir -p ${debugdir}; \
 326           for d in $(SUBDIRS); do mkdir -p  ${debugdir}/$$d; done; \
 327           (cd ${debugdir}; \
 328           sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
 329               -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 330               -e 's/srcdir = \.\./srcdir = ..\/../' \
 331               -e 's/VPATH = \.\./VPATH = ..\/../' \
 332               -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
 333               -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 334           < ../Makefile > Makefile ; \
 335           for d in . $(SUBDIRS); do \
 336           sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
 337               -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 338               -e 's/srcdir = \.\./srcdir = ..\/../' \
 339               -e 's/VPATH = \.\./VPATH = ..\/../' \
 340               -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
 341               -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 342           < ../$$d/Makefile > $$d/Makefile ; \
 343           done) ; \
 344         fi; \
 345         echo `date` > stamp-debug;
 346
 347 build-debug: stamp-debug
 348           (cd ${debugdir}; \
 349           mv Makefile Makefile.tmp; \
 350           sed -e 's,all-local: all-once,all-local:,' \
 351               -e 's,install-data-local: install-data-once,install-data-local:,' \
 352               -e '/vpath/!s,src/c,src/debug/c,' \
 353           < Makefile.tmp > Makefile ; \
 354           rm -f Makefile.tmp ; \
 355           $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
 356           toolexeclibdir=$(glibcxx_toolexeclibdir)/debug all) ;
 357
 358 # Install debug library.
 359 install-debug: build-debug
 360         (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
 361         toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ;