1 ## Makefile for the C++11 sources of the GNU C++ Standard library.
3 ## Copyright (C) 1997-2018 Free Software Foundation, Inc.
5 ## This file is part of the libstdc++ version 3 distribution.
6 ## Process this file with automake to produce Makefile.in.
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)
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.
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/>.
23 include $(top_srcdir)/fragment.am
25 if ENABLE_FILESYSTEM_TS
26 filesystem_dir = filesystem
31 SUBDIRS = c++98 c++11 $(filesystem_dir)
33 # Cross compiler support.
35 toolexeclib_LTLIBRARIES = libvtv.la libstdc++.la
37 toolexeclib_LTLIBRARIES = libstdc++.la
43 $(LN_S) $(toplevel_srcdir)/libstdc++-v3/libsupc++/vtv_stubs.cc $@
45 libvtv_la_SOURCES = vtv_stubs.cc
46 libvtv_la_LDFLAGS = $(lt_host_flags)
48 libvtv_la_AM_CXXFLAGS = \
49 $(glibcxx_compiler_pic_flag) \
51 -Wl,-u_vtable_map_vars_start,-u_vtable_map_vars_end \
52 $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
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 $@
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
65 if GLIBCXX_LDBL_COMPAT
66 ldbl_compat_sources = compatibility-ldbl.cc
72 parallel_compat_sources = \
73 compatibility-parallel_list.cc compatibility-parallel_list-2.cc
78 compatibility-debug_list.cc \
79 compatibility-debug_list-2.cc \
80 ${ldbl_compat_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
89 libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources)
91 libstdc___la_LIBADD = \
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
97 libstdc___la_DEPENDENCIES = \
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
103 libstdc___la_LDFLAGS = \
104 -version-info $(libtool_VERSION) ${version_arg} -lm
106 libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS)
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 $<
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 $<
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 $<
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 $<
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 $<
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 $<
143 # A note on compatibility and static libraries.
145 # static lib == linked against only this version, should not need compat
146 # shared lib == linked against potentially all compat versions
148 # Thus, the shared libs have more compat symbols, which can be found
149 # segregated in the sources with -D_GLIBCXX_SHARED.
151 # In the sub-directories of libsupc++, src/c++98, src/c++11, only
152 # -prefer-pic objects are generated for the convenience libraries.
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.
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.
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.
172 $(glibcxx_compiler_pic_flag) \
173 $(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
174 $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
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.
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
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.)
203 $(LIBTOOL) --tag CXX \
204 $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
205 --mode=compile $(CXX) $(INCLUDES) \
206 $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS)
208 LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
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.
217 $(LIBTOOL) --tag CXX \
218 $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
220 $(VTV_CXXLINKFLAGS) \
221 $(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
223 # Symbol versioning for shared libraries.
225 libstdc++-symbols.ver: ${glibcxx_srcdir}/$(SYMVER_FILE) \
226 $(port_specific_symbol_files)
227 cp ${glibcxx_srcdir}/$(SYMVER_FILE) $@.tmp
229 if test "x$(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; \
234 sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \
235 sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \
236 cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \
237 rm tmp.top tmp.bottom; \
240 $(EGREP) -v '^[ ]*#(#| |$$)' $@.tmp | \
241 $(CC) -E -P -include $(CONFIG_HEADER) - > $@ || (rm -f $@ ; exit 1)
244 CLEANFILES = libstdc++-symbols.ver
246 if ENABLE_SYMVERS_GNU
247 version_arg = -Wl,--version-script=libstdc++-symbols.ver
248 version_dep = libstdc++-symbols.ver
250 if ENABLE_SYMVERS_GNU_NAMESPACE
251 version_arg = -Wl,--version-script=libstdc++-symbols.ver
252 version_dep = libstdc++-symbols.ver
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)
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)
282 CLEANFILES += $(version_dep)
289 # Control additional build primary rules.
290 all-once: libstdc++convenience.la $(STAMP_DEBUG)
291 install-data-once: $(STAMP_INSTALL_DEBUG)
294 install-data-local: install-data-once
296 rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG)
298 # Make a non-installed convenience library, so that --disable-static
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; \
305 echo `date` > stamp-libstdc++convenience;
309 # 2 supra-convenience library
310 if GLIBCXX_BUILD_DEBUG
311 STAMP_DEBUG = build-debug
312 STAMP_INSTALL_DEBUG = install-debug
316 STAMP_INSTALL_DEBUG =
320 # Build a debug variant.
321 # Take care to fix all possibly-relative paths.
322 debugdir = ${glibcxx_builddir}/src/debug
324 if test ! -d ${debugdir}; then \
325 mkdir -p ${debugdir}; \
326 for d in $(SUBDIRS); do mkdir -p ${debugdir}/$$d; done; \
328 sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
329 -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
330 -e 's/srcdir = \.\./srcdir = ..\/../' \
331 -e 's/VPATH = \.\./VPATH = ..\/../' \
332 -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
333 -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
334 < ../Makefile > Makefile ; \
335 for d in . $(SUBDIRS); do \
336 sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
337 -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
338 -e 's/srcdir = \.\./srcdir = ..\/../' \
339 -e 's/VPATH = \.\./VPATH = ..\/../' \
340 -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
341 -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
342 < ../$$d/Makefile > $$d/Makefile ; \
345 echo `date` > stamp-debug;
347 build-debug: stamp-debug
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) ;
358 # Install debug library.
359 install-debug: build-debug
360 (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
361 toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ;