Makefile.am revision 1.1.1.15
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 23include $(top_srcdir)/fragment.am 24 25if ENABLE_FILESYSTEM_TS 26filesystem_dir = filesystem 27else 28filesystem_dir = 29endif 30 31if ENABLE_BACKTRACE 32backtrace_dir = libbacktrace 33backtrace_supported_h = $(backtrace_dir)/backtrace-supported.h 34else 35backtrace_dir = 36backtrace_supported_h = 37endif 38 39## Keep this list sync'd with acinclude.m4:GLIBCXX_CONFIGURE. 40SUBDIRS = c++98 c++11 c++17 c++20 $(filesystem_dir) $(backtrace_dir) 41 42# Cross compiler support. 43if VTV_CYGMIN 44toolexeclib_LTLIBRARIES = libvtv.la libstdc++.la 45else 46toolexeclib_LTLIBRARIES = libstdc++.la 47endif 48 49if VTV_CYGMIN 50vtv_stubs.cc: 51 rm -f $@ 52 $(LN_S) $(toplevel_srcdir)/libstdc++-v3/libsupc++/vtv_stubs.cc $@ 53 54libvtv_la_SOURCES = vtv_stubs.cc 55libvtv_la_LDFLAGS = $(lt_host_flags) 56 57libvtv_la_AM_CXXFLAGS = \ 58 $(glibcxx_compiler_pic_flag) \ 59 $(XTEMPLATE_FLAGS) \ 60 -Wl,-u_vtable_map_vars_start,-u_vtable_map_vars_end \ 61 $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) 62 63libvtv_la_LINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) \ 64 $(LIBTOOLFLAGS) --mode=link $(CXXLD) $(libvtv_la_AM_CXXFLAGS) \ 65 $(CXXFLAGS) $(libvtv_la_LDFLAGS) $(LDFLAGS) -o $@ 66endif 67 68vpath % $(top_srcdir)/src/c++98 69vpath % $(top_srcdir)/src/c++11 70vpath % $(top_srcdir)/src/c++17 71vpath % $(top_srcdir)/src/c++20 72if ENABLE_FILESYSTEM_TS 73vpath % $(top_srcdir)/src/filesystem 74endif 75if ENABLE_BACKTRACE 76vpath % $(top_srcdir)/src/libbacktrace 77endif 78 79if GLIBCXX_LDBL_COMPAT 80ldbl_compat_sources = compatibility-ldbl.cc 81else 82ldbl_compat_sources = 83endif 84 85if GLIBCXX_LDBL_ALT128_COMPAT 86if ENABLE_DUAL_ABI 87ldbl_alt128_compat_cxx11_sources = \ 88 compatibility-ldbl-alt128-cxx11.cc 89else 90ldbl_alt128_compat_cxx11_sources = 91endif 92ldbl_alt128_compat_sources = \ 93 compatibility-ldbl-alt128.cc \ 94 ${ldbl_alt128_compat_cxx11_sources} 95else 96ldbl_alt128_compat_sources = 97endif 98 99if ENABLE_SYMVERS_GNU_NAMESPACE 100cxx0x_compat_sources = 101else 102cxx0x_compat_sources = \ 103 compatibility-atomic-c++0x.cc \ 104 compatibility-c++0x.cc \ 105 compatibility-chrono.cc \ 106 compatibility-condvar.cc \ 107 compatibility-thread-c++0x.cc 108endif 109 110parallel_compat_sources = \ 111 compatibility-parallel_list.cc compatibility-parallel_list-2.cc 112 113 114cxx98_sources = \ 115 compatibility.cc \ 116 compatibility-debug_list.cc \ 117 compatibility-debug_list-2.cc \ 118 ${ldbl_compat_sources} 119 120cxx11_sources = \ 121 ${cxx0x_compat_sources} \ 122 ${ldbl_alt128_compat_sources} 123 124libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources) 125 126libstdc___la_LIBADD = \ 127 $(GLIBCXX_LIBS) \ 128 $(top_builddir)/libsupc++/libsupc++convenience.la \ 129 $(top_builddir)/src/c++98/libc++98convenience.la \ 130 $(top_builddir)/src/c++11/libc++11convenience.la \ 131 $(top_builddir)/src/c++17/libc++17convenience.la \ 132 $(top_builddir)/src/c++20/libc++20convenience.la 133 134libstdc___la_DEPENDENCIES = \ 135 ${version_dep} \ 136 $(top_builddir)/libsupc++/libsupc++convenience.la \ 137 $(top_builddir)/src/c++98/libc++98convenience.la \ 138 $(top_builddir)/src/c++11/libc++11convenience.la \ 139 $(top_builddir)/src/c++17/libc++17convenience.la \ 140 $(top_builddir)/src/c++20/libc++20convenience.la 141 142libstdc___la_LDFLAGS = \ 143 -version-info $(libtool_VERSION) ${version_arg} -lm 144 145libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS) $(lt_host_flags) 146 147# Use special rules for compatibility-ldbl.cc compilation, as we need to 148# pass -mlong-double-64, and not use -mabi={ieee,ibm}longdouble. 149if GLIBCXX_LDBL_COMPAT 150if GLIBCXX_LDBL_ALT128_COMPAT 151LTCXXCOMPILE64 = \ 152 $(filter-out -mabi=ieeelongdouble -mabi=ibmlongdouble,$(LTCXXCOMPILE)) 153CXXCOMPILE64 = \ 154 $(filter-out -mabi=ieeelongdouble -mabi=ibmlongdouble,$(CXXCOMPILE)) 155else 156LTCXXCOMPILE64 = $(LTCXXCOMPILE) 157CXXCOMPILE64 = $(CXXCOMPILE) 158endif 159compatibility-ldbl.lo: compatibility-ldbl.cc 160 $(LTCXXCOMPILE64) $(LONG_DOUBLE_COMPAT_FLAGS) -c $< 161compatibility-ldbl.o: compatibility-ldbl.cc 162 $(CXXCOMPILE64) $(LONG_DOUBLE_COMPAT_FLAGS) -c $< 163endif 164 165# Use special rules for compatibility-ldbl-alt128.cc compilation, as we need to 166# ensure it is compiled with the correct flag. 167if GLIBCXX_LDBL_ALT128_COMPAT 168compatibility-ldbl-alt128.lo: compatibility-ldbl-alt128.cc 169 $(LTCXXCOMPILE) $(LONG_DOUBLE_ALT128_COMPAT_FLAGS) -std=gnu++11 -c $< 170compatibility-ldbl-alt128.o: compatibility-ldbl-alt128.cc 171 $(CXXCOMPILE) $(LONG_DOUBLE_ALT128_COMPAT_FLAGS) -std=gnu++11 -c $< 172if ENABLE_DUAL_ABI 173compatibility-ldbl-alt128-cxx11.lo: compatibility-ldbl-alt128-cxx11.cc 174 $(LTCXXCOMPILE) $(LONG_DOUBLE_ALT128_COMPAT_FLAGS) -std=gnu++11 -c $< 175compatibility-ldbl-alt128-cxx11.o: compatibility-ldbl-alt128-cxx11.cc 176 $(CXXCOMPILE) $(LONG_DOUBLE_ALT128_COMPAT_FLAGS) -std=gnu++11 -c $< 177endif 178endif 179 180# Use special rules for C++11 files/objects. 181compatibility-c++0x.lo: compatibility-c++0x.cc 182 $(LTCXXCOMPILE) -std=gnu++11 -c $< 183compatibility-c++0x.o: compatibility-c++0x.cc 184 $(CXXCOMPILE) -std=gnu++11 -c $< 185 186compatibility-atomic-c++0x.lo: compatibility-atomic-c++0x.cc 187 $(LTCXXCOMPILE) -std=gnu++11 -c $< 188compatibility-atomic-c++0x.o: compatibility-atomic-c++0x.cc 189 $(CXXCOMPILE) -std=gnu++11 -c $< 190 191compatibility-thread-c++0x.lo: compatibility-thread-c++0x.cc 192 $(LTCXXCOMPILE) -std=gnu++11 -c $< 193compatibility-thread-c++0x.o: compatibility-thread-c++0x.cc 194 $(CXXCOMPILE) -std=gnu++11 -c $< 195 196compatibility-chrono.lo: compatibility-chrono.cc 197 $(LTCXXCOMPILE) -std=gnu++11 -c $< 198compatibility-chrono.o: compatibility-chrono.cc 199 $(CXXCOMPILE) -std=gnu++11 -c $< 200 201compatibility-condvar.lo: compatibility-condvar.cc 202 $(LTCXXCOMPILE) -std=gnu++11 -c $< 203compatibility-condvar.o: compatibility-condvar.cc 204 $(CXXCOMPILE) -std=gnu++11 -c $< 205 206# A note on compatibility and static libraries. 207# 208# static lib == linked against only this version, should not need compat 209# shared lib == linked against potentially all compat versions 210# 211# Thus, the shared libs have more compat symbols, which can be found 212# segregated in the sources with -D_GLIBCXX_SHARED. 213# 214# In the sub-directories of libsupc++, src/c++98, src/c++11, src/c++17, 215# src/c++20, only -prefer-pic objects are generated for the convenience 216# libraries. 217# 218# In the main src directory, make shared and static objects just for 219# the compat libraries. Shared objects are compiled with -prefer-pic 220# -D_GLIBCXX_SHARED and in the .libs sub-directory, static objects are 221# compiled with -prefer-pic (ie, -fPIC but not -D_GLIBCXX_SHARED) and 222# the main src directory. 223# 224# Why are objects destined for libstdc++.a compiled with -fPIC? First, 225# because -fPIC is not harmful to use for objects destined for static 226# libraries. In addition, using -fPIC will allow the use of static 227# libstdc++.a in the creation of other C++ shared libraries. 228 229# AM_CXXFLAGS needs to be in each sub-directory so that it can be 230# modified in a per-library or per-sub-library way. Need to manually 231# set this option because CONFIG_CXXFLAGS has to be after 232# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden 233# as the occasion calls for it. 234AM_CXXFLAGS_PRE = \ 235 -std=gnu++98 \ 236 $(glibcxx_compiler_pic_flag) \ 237 $(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \ 238 $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) 239 240AM_CXXFLAGS = $(filter-out -fvtable-verify=std,$(AM_CXXFLAGS_PRE)) 241 242# Libtool notes 243 244# 1) In general, libtool expects an argument such as `--tag=CXX' when 245# using the C++ compiler, because that will enable the settings 246# detected when C++ support was being configured. However, when no 247# such flag is given in the command line, libtool attempts to figure 248# it out by matching the compiler name in each configuration section 249# against a prefix of the command line. The problem is that, if the 250# compiler name and its initial flags stored in the libtool 251# configuration file don't match those in the command line, libtool 252# can't decide which configuration to use, and it gives up. The 253# correct solution is to add `--tag CXX' to LTCXXCOMPILE and maybe 254# CXXLINK, just after $(LIBTOOL), so that libtool doesn't have to 255# attempt to infer which configuration to use. 256# 257# The second tag argument, `--tag disable-shared` means that libtool 258# only compiles each source once, for static objects. In actuality, 259# glibcxx_lt_pic_flag and glibcxx_compiler_shared_flag are added to 260# the libtool command that is used create the object, which is 261# suitable for shared libraries. The `--tag disable-shared` must be 262# placed after --tag CXX lest things CXX undo the affect of 263# disable-shared. 264 265# 2) Need to explicitly set LTCXXCOMPILE so that EXTRA_CXX_FLAGS is 266# last. (That way, things like -O2 passed down from the toplevel can 267# be overridden by --enable-debug and --enable-cxx-flags.) 268LTCXXCOMPILE = \ 269 $(LIBTOOL) --tag CXX \ 270 $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ 271 --mode=compile $(CXX) $(INCLUDES) \ 272 $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS) 273 274LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS)) 275 276# 3) We'd have a problem when building the shared libstdc++ object if 277# the rules automake generates would be used. We cannot allow g++ to 278# be used since this would add -lstdc++ to the link line which of 279# course is problematic at this point. So, we get the top-level 280# directory to configure libstdc++-v3 to use gcc as the C++ 281# compilation driver. 282CXXLINK = \ 283 $(LIBTOOL) --tag CXX \ 284 $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ 285 --mode=link $(CXX) \ 286 $(VTV_CXXLINKFLAGS) \ 287 $(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) \ 288 $(LTLDFLAGS) $(LTLIBICONV) \ 289 -o $@ 290 291# Symbol versioning for shared libraries. 292if ENABLE_SYMVERS 293libstdc++-symbols.ver: ${glibcxx_srcdir}/$(SYMVER_FILE) \ 294 $(port_specific_symbol_files) 295 cp ${glibcxx_srcdir}/$(SYMVER_FILE) $@.tmp 296 chmod +w $@.tmp 297 if test "x$(port_specific_symbol_files)" != x; then \ 298 if grep '^# Appended to version file.' \ 299 $(port_specific_symbol_files) > /dev/null 2>&1; then \ 300 cat $(port_specific_symbol_files) >> $@.tmp; \ 301 else \ 302 sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \ 303 sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \ 304 cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \ 305 rm tmp.top tmp.bottom; \ 306 fi; \ 307 fi 308 $(EGREP) -v '^[ ]*#(#| |$$)' $@.tmp | \ 309 $(CC) -E -P -include $(CONFIG_HEADER) - > $@ || (rm -f $@ ; exit 1) 310 rm -f $@.tmp 311 312CLEANFILES = libstdc++-symbols.ver 313 314if ENABLE_SYMVERS_GNU 315version_arg = -Wl,--version-script=libstdc++-symbols.ver 316version_dep = libstdc++-symbols.ver 317endif 318if ENABLE_SYMVERS_GNU_NAMESPACE 319version_arg = -Wl,--version-script=libstdc++-symbols.ver 320version_dep = libstdc++-symbols.ver 321endif 322if ENABLE_SYMVERS_SUN 323version_arg = -Wl,-M,libstdc++-symbols.ver-sun 324version_dep = libstdc++-symbols.ver-sun 325libstdc++-symbols.ver-sun : libstdc++-symbols.ver \ 326 $(toplevel_srcdir)/contrib/make_sunver.pl \ 327 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD) 328 CXXFILT="$(CXXFILT)"; export CXXFILT; \ 329 perl $(toplevel_srcdir)/contrib/make_sunver.pl \ 330 libstdc++-symbols.ver \ 331 $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \ 332 `echo ' $(libstdc___la_LIBADD) ' | \ 333 sed -e 's,/\([^/.]*\)\.la,/.libs/\1.a,g' -e 's/ -l[^ ]* / /'` \ 334 > $@ || (rm -f $@ ; exit 1) 335endif 336if ENABLE_SYMVERS_DARWIN 337version_arg = -Wl,-exported_symbols_list,libstdc++-symbols.explist 338version_dep = libstdc++-symbols.explist 339libstdc++-symbols.explist : libstdc++-symbols.ver \ 340 ${glibcxx_srcdir}/scripts/make_exports.pl \ 341 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD) 342 perl ${glibcxx_srcdir}/scripts/make_exports.pl \ 343 libstdc++-symbols.ver \ 344 $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \ 345 `echo $(libstdc___la_LIBADD) | \ 346 sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \ 347 > $@ || (rm -f $@ ; exit 1) 348endif 349 350CLEANFILES += $(version_dep) 351else 352version_arg = 353version_dep = 354endif 355 356 357# Control additional build primary rules. 358all-once: libstdc++convenience.la $(STAMP_DEBUG) 359install-data-once: $(STAMP_INSTALL_DEBUG) 360 361all-local: all-once 362install-data-local: install-data-once 363clean-local: 364 rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG) 365 366# Make a non-installed convenience library, so that --disable-static 367# may work. 368libstdc++convenience.la: $(toolexeclib_LTLIBRARIES) 369 $(CXXLINK) $(libstdc___la_LIBADD) $(LIBS); \ 370 if test ! -f .libs/libstdc++.a; then \ 371 cp .libs/libstdc++convenience.a .libs/libstdc++.a; \ 372 fi; \ 373 echo `date` > stamp-libstdc++convenience; 374 375# Added rules. 376# 1 debug library 377# 2 supra-convenience library 378if GLIBCXX_BUILD_DEBUG 379STAMP_DEBUG = build-debug 380STAMP_INSTALL_DEBUG = install-debug 381CLEAN_DEBUG = debug 382else 383STAMP_DEBUG = 384STAMP_INSTALL_DEBUG = 385CLEAN_DEBUG = 386endif 387 388# Build a debug variant. 389# Take care to fix all possibly-relative paths. 390debugdir = ${glibcxx_builddir}/src/debug 391stamp-debug: Makefile $(foreach dir,$(SUBDIRS),$(dir)/Makefile) 392 if test ! -d ${debugdir} || test ! -f ${debugdir}/Makefile ; then \ 393 mkdir -p ${debugdir}; \ 394 for d in $(SUBDIRS); do mkdir -p ${debugdir}/$$d; done; \ 395 (cd ${debugdir}; \ 396 sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \ 397 -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \ 398 -e 's/srcdir = \.\./srcdir = ..\/../' \ 399 -e 's/VPATH = \.\./VPATH = ..\/../' \ 400 -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \ 401 -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \ 402 < ../Makefile > Makefile ; \ 403 for d in . $(SUBDIRS); do \ 404 sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \ 405 -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \ 406 -e 's/srcdir = \.\./srcdir = ..\/../' \ 407 -e 's/VPATH = \.\./VPATH = ..\/../' \ 408 -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \ 409 -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \ 410 < ../$$d/Makefile > $$d/Makefile ; \ 411 done) ; \ 412 fi; \ 413 echo `date` > stamp-debug; 414 415if ENABLE_BACKTRACE 416${debugdir}/$(backtrace_supported_h): $(backtrace_supported_h) stamp-debug 417 cp $< $@ 418debug_backtrace_supported_h = ${debugdir}/$(backtrace_supported_h) 419else 420debug_backtrace_supported_h = 421endif 422 423build-debug: stamp-debug $(debug_backtrace_supported_h) 424 (cd ${debugdir}; \ 425 mv Makefile Makefile.tmp; \ 426 sed -e 's,all-local: all-once,all-local:,' \ 427 -e 's,install-data-local: install-data-once,install-data-local:,' \ 428 -e '/vpath/!s,src/c,src/debug/c,' \ 429 < Makefile.tmp > Makefile ; \ 430 rm -f Makefile.tmp ; \ 431 $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \ 432 toolexeclibdir=$(glibcxx_toolexeclibdir)/debug all) ; 433 434# Install debug library. 435install-debug: build-debug 436 (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \ 437 toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ; 438