1## Makefile for the C++11 sources of the GNU C++ Standard library. 2## 3## Copyright (C) 1997-2013 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 25SUBDIRS = c++98 c++11 26 27# Cross compiler support. 28toolexeclib_LTLIBRARIES = libstdc++.la 29 30vpath % $(top_srcdir)/src/c++98 31vpath % $(top_srcdir)/src/c++11 32 33if GLIBCXX_LDBL_COMPAT 34ldbl_compat_sources = compatibility-ldbl.cc 35else 36ldbl_compat_sources = 37endif 38 39 40parallel_compat_sources = \ 41 compatibility-parallel_list.cc compatibility-parallel_list-2.cc 42 43 44cxx98_sources = \ 45 compatibility.cc \ 46 compatibility-debug_list.cc \ 47 compatibility-debug_list-2.cc \ 48 ${ldbl_compat_sources} 49 50cxx11_sources = \ 51 compatibility-c++0x.cc \ 52 compatibility-atomic-c++0x.cc \ 53 compatibility-thread-c++0x.cc \ 54 compatibility-chrono.cc 55 56libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources) 57 58libstdc___la_LIBADD = \ 59 $(GLIBCXX_LIBS) \ 60 $(top_builddir)/libsupc++/libsupc++convenience.la \ 61 $(top_builddir)/src/c++98/libc++98convenience.la \ 62 $(top_builddir)/src/c++11/libc++11convenience.la 63 64libstdc___la_DEPENDENCIES = \ 65 ${version_dep} \ 66 $(top_builddir)/libsupc++/libsupc++convenience.la \ 67 $(top_builddir)/src/c++98/libc++98convenience.la \ 68 $(top_builddir)/src/c++11/libc++11convenience.la 69 70libstdc___la_LDFLAGS = \ 71 -version-info $(libtool_VERSION) ${version_arg} -lm 72 73libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS) 74 75 76# Use special rules for compatibility-ldbl.cc compilation, as we need to 77# pass -mlong-double-64. 78if GLIBCXX_LDBL_COMPAT 79compatibility-ldbl.lo: compatibility-ldbl.cc 80 $(LTCXXCOMPILE) -mlong-double-64 -c $< 81compatibility-ldbl.o: compatibility-ldbl.cc 82 $(CXXCOMPILE) -mlong-double-64 -c $< 83endif 84 85# Use special rules for C++11 files/objects. 86compatibility-c++0x.lo: compatibility-c++0x.cc 87 $(LTCXXCOMPILE) -std=gnu++11 -c $< 88compatibility-c++0x.o: compatibility-c++0x.cc 89 $(CXXCOMPILE) -std=gnu++11 -c $< 90 91compatibility-atomic-c++0x.lo: compatibility-atomic-c++0x.cc 92 $(LTCXXCOMPILE) -std=gnu++11 -c $< 93compatibility-atomic-c++0x.o: compatibility-atomic-c++0x.cc 94 $(CXXCOMPILE) -std=gnu++11 -c $< 95 96compatibility-thread-c++0x.lo: compatibility-thread-c++0x.cc 97 $(LTCXXCOMPILE) -std=gnu++11 -c $< 98compatibility-thread-c++0x.o: compatibility-thread-c++0x.cc 99 $(CXXCOMPILE) -std=gnu++11 -c $< 100 101compatibility-chrono.lo: compatibility-chrono.cc 102 $(LTCXXCOMPILE) -std=gnu++11 -c $< 103compatibility-chrono.o: compatibility-chrono.cc 104 $(CXXCOMPILE) -std=gnu++11 -c $< 105 106# A note on compatibility and static libraries. 107# 108# static lib == linked against only this version, should not need compat 109# shared lib == linked against potentially all compat versions 110# 111# Thus, the shared libs have more compat symbols, which can be found 112# segregated in the sources with -D_GLIBCXX_SHARED. 113# 114# In the sub-directories of libsupc++, src/c++98, src/c++11, only 115# -prefer-pic objects are generated for the convenience libraries. 116# 117# In the main src directory, make shared and static objects just for 118# the compat libraries. Shared objects are compiled with -prefer-pic 119# -D_GLIBCXX_SHARED and in the .libs sub-directory, static objects are 120# compiled with -prefer-pic (ie, -fPIC but not -D_GLIBCXX_SHARED) and 121# the main src directory. 122# 123# Why are objects destined for libstdc++.a compiled with -fPIC? First, 124# because -fPIC is not harmful to use for objects destined for static 125# libraries. In addition, using -fPIC will allow the use of static 126# libstdc++.a in the creation of other C++ shared libraries. 127 128# AM_CXXFLAGS needs to be in each sub-directory so that it can be 129# modified in a per-library or per-sub-library way. Need to manually 130# set this option because CONFIG_CXXFLAGS has to be after 131# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden 132# as the occasion calls for it. 133AM_CXXFLAGS = \ 134 $(glibcxx_compiler_pic_flag) \ 135 $(XTEMPLATE_FLAGS) \ 136 $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) 137 138# Libtool notes 139 140# 1) In general, libtool expects an argument such as `--tag=CXX' when 141# using the C++ compiler, because that will enable the settings 142# detected when C++ support was being configured. However, when no 143# such flag is given in the command line, libtool attempts to figure 144# it out by matching the compiler name in each configuration section 145# against a prefix of the command line. The problem is that, if the 146# compiler name and its initial flags stored in the libtool 147# configuration file don't match those in the command line, libtool 148# can't decide which configuration to use, and it gives up. The 149# correct solution is to add `--tag CXX' to LTCXXCOMPILE and maybe 150# CXXLINK, just after $(LIBTOOL), so that libtool doesn't have to 151# attempt to infer which configuration to use. 152# 153# The second tag argument, `--tag disable-shared` means that libtool 154# only compiles each source once, for static objects. In actuality, 155# glibcxx_lt_pic_flag and glibcxx_compiler_shared_flag are added to 156# the libtool command that is used create the object, which is 157# suitable for shared libraries. The `--tag disable-shared` must be 158# placed after --tag CXX lest things CXX undo the affect of 159# disable-shared. 160 161# 2) Need to explicitly set LTCXXCOMPILE so that EXTRA_CXX_FLAGS is 162# last. (That way, things like -O2 passed down from the toplevel can 163# be overridden by --enable-debug and --enable-cxx-flags.) 164LTCXXCOMPILE = \ 165 $(LIBTOOL) --tag CXX \ 166 $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ 167 --mode=compile $(CXX) $(INCLUDES) \ 168 $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS) 169 170LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS)) 171 172# 3) We'd have a problem when building the shared libstdc++ object if 173# the rules automake generates would be used. We cannot allow g++ to 174# be used since this would add -lstdc++ to the link line which of 175# course is problematic at this point. So, we get the top-level 176# directory to configure libstdc++-v3 to use gcc as the C++ 177# compilation driver. 178CXXLINK = \ 179 $(LIBTOOL) --tag CXX \ 180 $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ 181 --mode=link $(CXX) \ 182 $(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@ 183 184 185# Symbol versioning for shared libraries. 186if ENABLE_SYMVERS 187libstdc++-symbols.ver: ${glibcxx_srcdir}/$(SYMVER_FILE) \ 188 $(port_specific_symbol_files) 189 cp ${glibcxx_srcdir}/$(SYMVER_FILE) $@.tmp 190 chmod +w $@.tmp 191 if test "x$(port_specific_symbol_files)" != x; then \ 192 if grep '^# Appended to version file.' \ 193 $(port_specific_symbol_files) /dev/null > /dev/null 2>&1; then \ 194 cat $(port_specific_symbol_files) >> $@.tmp; \ 195 else \ 196 sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \ 197 sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \ 198 cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \ 199 rm tmp.top tmp.bottom; \ 200 fi; \ 201 fi 202 $(EGREP) -v '^[ ]*#(#| |$$)' $@.tmp | \ 203 $(CC) -E -P -include $(CONFIG_HEADER) - > $@ || (rm -f $@ ; exit 1) 204 rm -f $@.tmp 205 206CLEANFILES = libstdc++-symbols.ver 207 208if ENABLE_SYMVERS_GNU 209version_arg = -Wl,--version-script=libstdc++-symbols.ver 210version_dep = libstdc++-symbols.ver 211endif 212if ENABLE_SYMVERS_GNU_NAMESPACE 213version_arg = -Wl,--version-script=libstdc++-symbols.ver 214version_dep = libstdc++-symbols.ver 215endif 216if ENABLE_SYMVERS_SUN 217version_arg = -Wl,-M,libstdc++-symbols.ver-sun 218version_dep = libstdc++-symbols.ver-sun 219libstdc++-symbols.ver-sun : libstdc++-symbols.ver \ 220 $(toplevel_srcdir)/contrib/make_sunver.pl \ 221 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD) 222 CXXFILT="$(CXXFILT)"; export CXXFILT; \ 223 perl $(toplevel_srcdir)/contrib/make_sunver.pl \ 224 libstdc++-symbols.ver \ 225 $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \ 226 `echo $(libstdc___la_LIBADD) | \ 227 sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \ 228 > $@ || (rm -f $@ ; exit 1) 229endif 230if ENABLE_SYMVERS_DARWIN 231version_arg = -Wl,-exported_symbols_list,libstdc++-symbols.explist 232version_dep = libstdc++-symbols.explist 233libstdc++-symbols.explist : libstdc++-symbols.ver \ 234 ${glibcxx_srcdir}/scripts/make_exports.pl \ 235 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD) 236 perl ${glibcxx_srcdir}/scripts/make_exports.pl \ 237 libstdc++-symbols.ver \ 238 $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \ 239 `echo $(libstdc___la_LIBADD) | \ 240 sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \ 241 > $@ || (rm -f $@ ; exit 1) 242endif 243 244CLEANFILES += $(version_dep) 245else 246version_arg = 247version_dep = 248endif 249 250 251# Control additional build primary rules. 252all-once: libstdc++convenience.la $(STAMP_DEBUG) 253install-data-once: $(STAMP_INSTALL_DEBUG) 254 255all-local: all-once 256install-data-local: install-data-once 257clean-local: 258 rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG) 259 260# Make a non-installed convenience library, so that --disable-static 261# may work. 262libstdc++convenience.la: $(toolexeclib_LTLIBRARIES) 263 $(CXXLINK) $(libstdc___la_LIBADD) $(LIBS); \ 264 if test ! -f .libs/libstdc++.a; then \ 265 cp .libs/libstdc++convenience.a .libs/libstdc++.a; \ 266 fi; \ 267 echo `date` > stamp-libstdc++convenience; 268 269# Added rules. 270# 1 debug library 271# 2 supra-convenience library 272if GLIBCXX_BUILD_DEBUG 273STAMP_DEBUG = build-debug 274STAMP_INSTALL_DEBUG = install-debug 275CLEAN_DEBUG = debug 276else 277STAMP_DEBUG = 278STAMP_INSTALL_DEBUG = 279CLEAN_DEBUG = 280endif 281 282# Build a debug variant. 283# Take care to fix all possibly-relative paths. 284debugdir = ${glibcxx_builddir}/src/debug 285stamp-debug: 286 if test ! -d ${debugdir}; then \ 287 mkdir -p ${debugdir}; \ 288 for d in $(SUBDIRS); do mkdir -p ${debugdir}/$$d; done; \ 289 (cd ${debugdir}; \ 290 sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \ 291 -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \ 292 -e 's/srcdir = \.\./srcdir = ..\/../' \ 293 -e 's/VPATH = \.\./VPATH = ..\/../' \ 294 -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \ 295 -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \ 296 < ../Makefile > Makefile ; \ 297 for d in . $(SUBDIRS); do \ 298 sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \ 299 -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \ 300 -e 's/srcdir = \.\./srcdir = ..\/../' \ 301 -e 's/VPATH = \.\./VPATH = ..\/../' \ 302 -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \ 303 -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \ 304 < ../$$d/Makefile > $$d/Makefile ; \ 305 done) ; \ 306 fi; \ 307 echo `date` > stamp-debug; 308 309build-debug: stamp-debug 310 (cd ${debugdir}; \ 311 mv Makefile Makefile.tmp; \ 312 sed -e 's,all-local: all-once,all-local:,' \ 313 -e 's,install-data-local: install-data-once,install-data-local:,' \ 314 -e '/vpath/!s,src/c,src/debug/c,' \ 315 < Makefile.tmp > Makefile ; \ 316 rm -f Makefile.tmp ; \ 317 $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \ 318 toolexeclibdir=$(glibcxx_toolexeclibdir)/debug all) ; 319 320# Install debug library. 321install-debug: build-debug 322 (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \ 323 toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ; 324