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## Makefile for the C++11 sources of the GNU C++ Standard library.
##
## Copyright (C) 1997-2020 Free Software Foundation, Inc.
##
## This file is part of the libstdc++ version 3 distribution.
## Process this file with automake to produce Makefile.in.
## This file is part of the GNU ISO C++ Library. This library is free
## software; you can redistribute it and/or modify it under the
## terms of the GNU General Public License as published by the
## Free Software Foundation; either version 3, or (at your option)
## any later version.
## This library is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
## You should have received a copy of the GNU General Public License along
## with this library; see the file COPYING3. If not see
## <http://www.gnu.org/licenses/>.
include $(top_srcdir)/fragment.am
if ENABLE_FILESYSTEM_TS
filesystem_dir = filesystem
else
filesystem_dir =
endif
## Keep this list sync'd with acinclude.m4:GLIBCXX_CONFIGURE.
SUBDIRS = c++98 c++11 c++17 $(filesystem_dir)
# Cross compiler support.
if VTV_CYGMIN
toolexeclib_LTLIBRARIES = libvtv.la libstdc++.la
else
toolexeclib_LTLIBRARIES = libstdc++.la
endif
if VTV_CYGMIN
vtv_stubs.cc:
rm -f $@
$(LN_S) $(toplevel_srcdir)/libstdc++-v3/libsupc++/vtv_stubs.cc $@
libvtv_la_SOURCES = vtv_stubs.cc
libvtv_la_LDFLAGS = $(lt_host_flags)
libvtv_la_AM_CXXFLAGS = \
$(glibcxx_compiler_pic_flag) \
$(XTEMPLATE_FLAGS) \
-Wl,-u_vtable_map_vars_start,-u_vtable_map_vars_end \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
libvtv_la_LINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) \
$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(libvtv_la_AM_CXXFLAGS) \
$(CXXFLAGS) $(libvtv_la_LDFLAGS) $(LDFLAGS) -o $@
endif
vpath % $(top_srcdir)/src/c++98
vpath % $(top_srcdir)/src/c++11
vpath % $(top_srcdir)/src/c++17
if ENABLE_FILESYSTEM_TS
vpath % $(top_srcdir)/src/filesystem
endif
if GLIBCXX_LDBL_COMPAT
ldbl_compat_sources = compatibility-ldbl.cc
else
ldbl_compat_sources =
endif
parallel_compat_sources = \
compatibility-parallel_list.cc compatibility-parallel_list-2.cc
cxx98_sources = \
compatibility.cc \
compatibility-debug_list.cc \
compatibility-debug_list-2.cc \
${ldbl_compat_sources}
cxx11_sources = \
compatibility-c++0x.cc \
compatibility-atomic-c++0x.cc \
compatibility-thread-c++0x.cc \
compatibility-chrono.cc \
compatibility-condvar.cc
libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources)
libstdc___la_LIBADD = \
$(GLIBCXX_LIBS) \
$(top_builddir)/libsupc++/libsupc++convenience.la \
$(top_builddir)/src/c++98/libc++98convenience.la \
$(top_builddir)/src/c++11/libc++11convenience.la \
$(top_builddir)/src/c++17/libc++17convenience.la
libstdc___la_DEPENDENCIES = \
${version_dep} \
$(top_builddir)/libsupc++/libsupc++convenience.la \
$(top_builddir)/src/c++98/libc++98convenience.la \
$(top_builddir)/src/c++11/libc++11convenience.la \
$(top_builddir)/src/c++17/libc++17convenience.la
libstdc___la_LDFLAGS = \
-version-info $(libtool_VERSION) ${version_arg} -lm
libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS)
# Use special rules for compatibility-ldbl.cc compilation, as we need to
# pass -mlong-double-64.
if GLIBCXX_LDBL_COMPAT
compatibility-ldbl.lo: compatibility-ldbl.cc
$(LTCXXCOMPILE) $(LONG_DOUBLE_COMPAT_FLAGS) -c $<
compatibility-ldbl.o: compatibility-ldbl.cc
$(CXXCOMPILE) $(LONG_DOUBLE_COMPAT_FLAGS) -c $<
endif
# Use special rules for C++11 files/objects.
compatibility-c++0x.lo: compatibility-c++0x.cc
$(LTCXXCOMPILE) -std=gnu++11 -c $<
compatibility-c++0x.o: compatibility-c++0x.cc
$(CXXCOMPILE) -std=gnu++11 -c $<
compatibility-atomic-c++0x.lo: compatibility-atomic-c++0x.cc
$(LTCXXCOMPILE) -std=gnu++11 -c $<
compatibility-atomic-c++0x.o: compatibility-atomic-c++0x.cc
$(CXXCOMPILE) -std=gnu++11 -c $<
compatibility-thread-c++0x.lo: compatibility-thread-c++0x.cc
$(LTCXXCOMPILE) -std=gnu++11 -c $<
compatibility-thread-c++0x.o: compatibility-thread-c++0x.cc
$(CXXCOMPILE) -std=gnu++11 -c $<
compatibility-chrono.lo: compatibility-chrono.cc
$(LTCXXCOMPILE) -std=gnu++11 -c $<
compatibility-chrono.o: compatibility-chrono.cc
$(CXXCOMPILE) -std=gnu++11 -c $<
compatibility-condvar.lo: compatibility-condvar.cc
$(LTCXXCOMPILE) -std=gnu++11 -c $<
compatibility-condvar.o: compatibility-condvar.cc
$(CXXCOMPILE) -std=gnu++11 -c $<
# A note on compatibility and static libraries.
#
# static lib == linked against only this version, should not need compat
# shared lib == linked against potentially all compat versions
#
# Thus, the shared libs have more compat symbols, which can be found
# segregated in the sources with -D_GLIBCXX_SHARED.
#
# In the sub-directories of libsupc++, src/c++98, src/c++11, src/c++17,
# only -prefer-pic objects are generated for the convenience libraries.
#
# In the main src directory, make shared and static objects just for
# the compat libraries. Shared objects are compiled with -prefer-pic
# -D_GLIBCXX_SHARED and in the .libs sub-directory, static objects are
# compiled with -prefer-pic (ie, -fPIC but not -D_GLIBCXX_SHARED) and
# the main src directory.
#
# Why are objects destined for libstdc++.a compiled with -fPIC? First,
# because -fPIC is not harmful to use for objects destined for static
# libraries. In addition, using -fPIC will allow the use of static
# libstdc++.a in the creation of other C++ shared libraries.
# AM_CXXFLAGS needs to be in each sub-directory so that it can be
# modified in a per-library or per-sub-library way. Need to manually
# set this option because CONFIG_CXXFLAGS has to be after
# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
# as the occasion calls for it.
AM_CXXFLAGS = \
-std=gnu++98 \
$(glibcxx_compiler_pic_flag) \
$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
# Libtool notes
# 1) In general, libtool expects an argument such as `--tag=CXX' when
# using the C++ compiler, because that will enable the settings
# detected when C++ support was being configured. However, when no
# such flag is given in the command line, libtool attempts to figure
# it out by matching the compiler name in each configuration section
# against a prefix of the command line. The problem is that, if the
# compiler name and its initial flags stored in the libtool
# configuration file don't match those in the command line, libtool
# can't decide which configuration to use, and it gives up. The
# correct solution is to add `--tag CXX' to LTCXXCOMPILE and maybe
# CXXLINK, just after $(LIBTOOL), so that libtool doesn't have to
# attempt to infer which configuration to use.
#
# The second tag argument, `--tag disable-shared` means that libtool
# only compiles each source once, for static objects. In actuality,
# glibcxx_lt_pic_flag and glibcxx_compiler_shared_flag are added to
# the libtool command that is used create the object, which is
# suitable for shared libraries. The `--tag disable-shared` must be
# placed after --tag CXX lest things CXX undo the affect of
# disable-shared.
# 2) Need to explicitly set LTCXXCOMPILE so that EXTRA_CXX_FLAGS is
# last. (That way, things like -O2 passed down from the toplevel can
# be overridden by --enable-debug and --enable-cxx-flags.)
LTCXXCOMPILE = \
$(LIBTOOL) --tag CXX \
$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
--mode=compile $(CXX) $(INCLUDES) \
$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS)
LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
# 3) We'd have a problem when building the shared libstdc++ object if
# the rules automake generates would be used. We cannot allow g++ to
# be used since this would add -lstdc++ to the link line which of
# course is problematic at this point. So, we get the top-level
# directory to configure libstdc++-v3 to use gcc as the C++
# compilation driver.
CXXLINK = \
$(LIBTOOL) --tag CXX \
$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
--mode=link $(CXX) \
$(VTV_CXXLINKFLAGS) \
$(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) \
$(LTLDFLAGS) $(LTLIBICONV) \
-o $@
# Symbol versioning for shared libraries.
if ENABLE_SYMVERS
libstdc++-symbols.ver: ${glibcxx_srcdir}/$(SYMVER_FILE) \
$(port_specific_symbol_files)
cp ${glibcxx_srcdir}/$(SYMVER_FILE) $@.tmp
chmod +w $@.tmp
if test "x$(port_specific_symbol_files)" != x; then \
if grep '^# Appended to version file.' \
$(port_specific_symbol_files) > /dev/null 2>&1; then \
cat $(port_specific_symbol_files) >> $@.tmp; \
else \
sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \
sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \
cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \
rm tmp.top tmp.bottom; \
fi; \
fi
$(EGREP) -v '^[ ]*#(#| |$$)' $@.tmp | \
$(CC) -E -P -include $(CONFIG_HEADER) - > $@ || (rm -f $@ ; exit 1)
rm -f $@.tmp
CLEANFILES = libstdc++-symbols.ver
if ENABLE_SYMVERS_GNU
version_arg = -Wl,--version-script=libstdc++-symbols.ver
version_dep = libstdc++-symbols.ver
endif
if ENABLE_SYMVERS_GNU_NAMESPACE
version_arg = -Wl,--version-script=libstdc++-symbols.ver
version_dep = libstdc++-symbols.ver
endif
if ENABLE_SYMVERS_SUN
version_arg = -Wl,-M,libstdc++-symbols.ver-sun
version_dep = libstdc++-symbols.ver-sun
libstdc++-symbols.ver-sun : libstdc++-symbols.ver \
$(toplevel_srcdir)/contrib/make_sunver.pl \
$(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
CXXFILT="$(CXXFILT)"; export CXXFILT; \
perl $(toplevel_srcdir)/contrib/make_sunver.pl \
libstdc++-symbols.ver \
$(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
`echo $(libstdc___la_LIBADD) | \
sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
> $@ || (rm -f $@ ; exit 1)
endif
if ENABLE_SYMVERS_DARWIN
version_arg = -Wl,-exported_symbols_list,libstdc++-symbols.explist
version_dep = libstdc++-symbols.explist
libstdc++-symbols.explist : libstdc++-symbols.ver \
${glibcxx_srcdir}/scripts/make_exports.pl \
$(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
perl ${glibcxx_srcdir}/scripts/make_exports.pl \
libstdc++-symbols.ver \
$(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
`echo $(libstdc___la_LIBADD) | \
sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
> $@ || (rm -f $@ ; exit 1)
endif
CLEANFILES += $(version_dep)
else
version_arg =
version_dep =
endif
# Control additional build primary rules.
all-once: libstdc++convenience.la $(STAMP_DEBUG)
install-data-once: $(STAMP_INSTALL_DEBUG)
all-local: all-once
install-data-local: install-data-once
clean-local:
rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG)
# Make a non-installed convenience library, so that --disable-static
# may work.
libstdc++convenience.la: $(toolexeclib_LTLIBRARIES)
$(CXXLINK) $(libstdc___la_LIBADD) $(LIBS); \
if test ! -f .libs/libstdc++.a; then \
cp .libs/libstdc++convenience.a .libs/libstdc++.a; \
fi; \
echo `date` > stamp-libstdc++convenience;
# Added rules.
# 1 debug library
# 2 supra-convenience library
if GLIBCXX_BUILD_DEBUG
STAMP_DEBUG = build-debug
STAMP_INSTALL_DEBUG = install-debug
CLEAN_DEBUG = debug
else
STAMP_DEBUG =
STAMP_INSTALL_DEBUG =
CLEAN_DEBUG =
endif
# Build a debug variant.
# Take care to fix all possibly-relative paths.
debugdir = ${glibcxx_builddir}/src/debug
stamp-debug:
if test ! -d ${debugdir} || test ! -f ${debugdir}/Makefile ; then \
mkdir -p ${debugdir}; \
for d in $(SUBDIRS); do mkdir -p ${debugdir}/$$d; done; \
(cd ${debugdir}; \
sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
-e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
-e 's/srcdir = \.\./srcdir = ..\/../' \
-e 's/VPATH = \.\./VPATH = ..\/../' \
-e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
-e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
< ../Makefile > Makefile ; \
for d in . $(SUBDIRS); do \
sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
-e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
-e 's/srcdir = \.\./srcdir = ..\/../' \
-e 's/VPATH = \.\./VPATH = ..\/../' \
-e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
-e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
< ../$$d/Makefile > $$d/Makefile ; \
done) ; \
fi; \
echo `date` > stamp-debug;
build-debug: stamp-debug
(cd ${debugdir}; \
mv Makefile Makefile.tmp; \
sed -e 's,all-local: all-once,all-local:,' \
-e 's,install-data-local: install-data-once,install-data-local:,' \
-e '/vpath/!s,src/c,src/debug/c,' \
< Makefile.tmp > Makefile ; \
rm -f Makefile.tmp ; \
$(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
toolexeclibdir=$(glibcxx_toolexeclibdir)/debug all) ;
# Install debug library.
install-debug: build-debug
(cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ;