1## Makefile for the C++11 sources of the GNU C++ Standard library. 2## 3## Copyright (C) 1997-2018 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 23include $(top_srcdir)/fragment.am 24 25if ENABLE_FILESYSTEM_TS 26filesystem_dir = filesystem 27else 28filesystem_dir = 29endif 30 31SUBDIRS = c++98 c++11 $(filesystem_dir) 32 33# Cross compiler support. 34if VTV_CYGMIN 35toolexeclib_LTLIBRARIES = libvtv.la libstdc++.la 36else 37toolexeclib_LTLIBRARIES = libstdc++.la 38endif 39 40if VTV_CYGMIN 41vtv_stubs.cc: 42 rm -f $@ 43 $(LN_S) $(toplevel_srcdir)/libstdc++-v3/libsupc++/vtv_stubs.cc $@ 44 45libvtv_la_SOURCES = vtv_stubs.cc 46libvtv_la_LDFLAGS = $(lt_host_flags) 47 48libvtv_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 54libvtv_la_LINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) \ 55 $(LIBTOOLFLAGS) --mode=link $(CXXLD) $(libvtv_la_AM_CXXFLAGS) \ 56 $(CXXFLAGS) $(libvtv_la_LDFLAGS) $(LDFLAGS) -o $@ 57endif 58 59vpath % $(top_srcdir)/src/c++98 60vpath % $(top_srcdir)/src/c++11 61if ENABLE_FILESYSTEM_TS 62vpath % $(top_srcdir)/src/filesystem 63endif 64 65if GLIBCXX_LDBL_COMPAT 66ldbl_compat_sources = compatibility-ldbl.cc 67else 68ldbl_compat_sources = 69endif 70 71 72parallel_compat_sources = \ 73 compatibility-parallel_list.cc compatibility-parallel_list-2.cc 74 75 76cxx98_sources = \ 77 compatibility.cc \ 78 compatibility-debug_list.cc \ 79 compatibility-debug_list-2.cc \ 80 ${ldbl_compat_sources} 81 82cxx11_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 89libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources) 90 91libstdc___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 97libstdc___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 103libstdc___la_LDFLAGS = \ 104 -version-info $(libtool_VERSION) ${version_arg} -lm 105 106libstdc___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. 110if GLIBCXX_LDBL_COMPAT 111compatibility-ldbl.lo: compatibility-ldbl.cc 112 $(LTCXXCOMPILE) $(LONG_DOUBLE_COMPAT_FLAGS) -c $< 113compatibility-ldbl.o: compatibility-ldbl.cc 114 $(CXXCOMPILE) $(LONG_DOUBLE_COMPAT_FLAGS) -c $< 115endif 116 117# Use special rules for C++11 files/objects. 118compatibility-c++0x.lo: compatibility-c++0x.cc 119 $(LTCXXCOMPILE) -std=gnu++11 -c $< 120compatibility-c++0x.o: compatibility-c++0x.cc 121 $(CXXCOMPILE) -std=gnu++11 -c $< 122 123compatibility-atomic-c++0x.lo: compatibility-atomic-c++0x.cc 124 $(LTCXXCOMPILE) -std=gnu++11 -c $< 125compatibility-atomic-c++0x.o: compatibility-atomic-c++0x.cc 126 $(CXXCOMPILE) -std=gnu++11 -c $< 127 128compatibility-thread-c++0x.lo: compatibility-thread-c++0x.cc 129 $(LTCXXCOMPILE) -std=gnu++11 -c $< 130compatibility-thread-c++0x.o: compatibility-thread-c++0x.cc 131 $(CXXCOMPILE) -std=gnu++11 -c $< 132 133compatibility-chrono.lo: compatibility-chrono.cc 134 $(LTCXXCOMPILE) -std=gnu++11 -c $< 135compatibility-chrono.o: compatibility-chrono.cc 136 $(CXXCOMPILE) -std=gnu++11 -c $< 137 138compatibility-condvar.lo: compatibility-condvar.cc 139 $(LTCXXCOMPILE) -std=gnu++11 -c $< 140compatibility-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. 170AM_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.) 202LTCXXCOMPILE = \ 203 $(LIBTOOL) --tag CXX \ 204 $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ 205 --mode=compile $(CXX) $(INCLUDES) \ 206 $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS) 207 208LTLDFLAGS = $(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. 216CXXLINK = \ 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. 224if ENABLE_SYMVERS 225libstdc++-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 244CLEANFILES = libstdc++-symbols.ver 245 246if ENABLE_SYMVERS_GNU 247version_arg = -Wl,--version-script=libstdc++-symbols.ver 248version_dep = libstdc++-symbols.ver 249endif 250if ENABLE_SYMVERS_GNU_NAMESPACE 251version_arg = -Wl,--version-script=libstdc++-symbols.ver 252version_dep = libstdc++-symbols.ver 253endif 254if ENABLE_SYMVERS_SUN 255version_arg = -Wl,-M,libstdc++-symbols.ver-sun 256version_dep = libstdc++-symbols.ver-sun 257libstdc++-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) 267endif 268if ENABLE_SYMVERS_DARWIN 269version_arg = -Wl,-exported_symbols_list,libstdc++-symbols.explist 270version_dep = libstdc++-symbols.explist 271libstdc++-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) 280endif 281 282CLEANFILES += $(version_dep) 283else 284version_arg = 285version_dep = 286endif 287 288 289# Control additional build primary rules. 290all-once: libstdc++convenience.la $(STAMP_DEBUG) 291install-data-once: $(STAMP_INSTALL_DEBUG) 292 293all-local: all-once 294install-data-local: install-data-once 295clean-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. 300libstdc++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 310if GLIBCXX_BUILD_DEBUG 311STAMP_DEBUG = build-debug 312STAMP_INSTALL_DEBUG = install-debug 313CLEAN_DEBUG = debug 314else 315STAMP_DEBUG = 316STAMP_INSTALL_DEBUG = 317CLEAN_DEBUG = 318endif 319 320# Build a debug variant. 321# Take care to fix all possibly-relative paths. 322debugdir = ${glibcxx_builddir}/src/debug 323stamp-debug: 324 if test ! -d ${debugdir} || test ! -f ${debugdir}/Makefile ; 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 347build-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. 359install-debug: build-debug 360 (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \ 361 toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ; 362