[thirdparty/gcc.git] / libstdc++-v3 / src / Makefile.am

## Makefile for the C++11 sources of the GNU C++ Standard library.
##
## Copyright (C) 1997-2016 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

SUBDIRS = c++98 c++11 $(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
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

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

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) -mlong-double-64 -c $<
compatibility-ldbl.o: compatibility-ldbl.cc
	$(CXXCOMPILE) -mlong-double-64 -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, 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) -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}; 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) ;
Commit	Line	Data
8bae34da	1	## Makefile for the C++11 sources of the GNU C++ Standard library.
b2dad0e3	2	##
818ab71a	3	## Copyright (C) 1997-2016 Free Software Foundation, Inc.
b2dad0e3 BK	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
748086b7	11	## Free Software Foundation; either version 3, or (at your option)
b2dad0e3 BK	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
748086b7 JJ	20	## with this library; see the file COPYING3. If not see
748086b7 JJ	21	## <http://www.gnu.org/licenses/>.
b2dad0e3	22
0df3f383	23	include $(top_srcdir)/fragment.am
ae9dc931	24
0ca7ba9a JW	25	if ENABLE_FILESYSTEM_TS
	26	filesystem_dir = filesystem
	27	else
	28	filesystem_dir =
	29	endif
	30
	31	SUBDIRS = c++98 c++11 $(filesystem_dir)
8bae34da	32
714e9334	33	# Cross compiler support.
f7f049fa CT	34	if VTV_CYGMIN
	35	toolexeclib_LTLIBRARIES = libvtv.la libstdc++.la
	36	else
b2dad0e3	37	toolexeclib_LTLIBRARIES = libstdc++.la
f7f049fa CT	38	endif
	39
	40	if VTV_CYGMIN
	41	vtv_stubs.cc:
	42	rm -f $@
	43	$(LN_S) $(toplevel_srcdir)/libstdc++-v3/libsupc++/vtv_stubs.cc $@
	44
	45	libvtv_la_SOURCES = vtv_stubs.cc
	46	libvtv_la_LDFLAGS = $(lt_host_flags)
	47
	48	libvtv_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
	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 $@
	57	endif
b2dad0e3	58
0b284728 BK	59	vpath % $(top_srcdir)/src/c++98
0b284728 BK	60	vpath % $(top_srcdir)/src/c++11
0ca7ba9a JW	61	if ENABLE_FILESYSTEM_TS
	62	vpath % $(top_srcdir)/src/filesystem
	63	endif
8bae34da	64
0b284728 BK	65	if GLIBCXX_LDBL_COMPAT
	66	ldbl_compat_sources = compatibility-ldbl.cc
	67	else
	68	ldbl_compat_sources =
	69	endif
	70
495de4f4	71
0b284728 BK	72	parallel_compat_sources = \
0b284728 BK	73	compatibility-parallel_list.cc compatibility-parallel_list-2.cc
495de4f4	74
0b284728 BK	75
	76	cxx98_sources = \
	77	compatibility.cc \
	78	compatibility-debug_list.cc \
	79	compatibility-debug_list-2.cc \
f92ab29f	80	${ldbl_compat_sources}
0b284728 BK	81
	82	cxx11_sources = \
	83	compatibility-c++0x.cc \
	84	compatibility-atomic-c++0x.cc \
2e8a9734	85	compatibility-thread-c++0x.cc \
3429db0f JW	86	compatibility-chrono.cc \
3429db0f JW	87	compatibility-condvar.cc
0b284728 BK	88
0b284728 BK	89	libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources)
8bae34da BK	90
	91	libstdc___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
	97	libstdc___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
	103	libstdc___la_LDFLAGS = \
	104	-version-info $(libtool_VERSION) ${version_arg} -lm
	105
	106	libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS)
	107
0b284728 BK	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) -mlong-double-64 -c $<
	113	compatibility-ldbl.o: compatibility-ldbl.cc
	114	$(CXXCOMPILE) -mlong-double-64 -c $<
	115	endif
	116
	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 $<
	122
	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 $<
	127
	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 $<
	132
2e8a9734 JJ	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 $<
	137
3429db0f JW	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 $<
	142
ac6d1200	143	# A note on compatibility and static libraries.
f92ab29f	144	#
ac6d1200 BK	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.
f92ab29f	153	#
ac6d1200 BK	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
8bae34da BK	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.
	170	AM_CXXFLAGS = \
6cd9cb89	171	-std=gnu++98 \
ac6d1200	172	$(glibcxx_compiler_pic_flag) \
2077db1b	173	$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
0b284728	174	$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
8bae34da	175
0b284728	176	# Libtool notes
8bae34da	177
ac6d1200	178	# 1) In general, libtool expects an argument such as `--tag=CXX' when
8bae34da BK	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
ac6d1200	189	# attempt to infer which configuration to use.
f92ab29f	190	#
ac6d1200 BK	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
b1d6986c	199	# 2) Need to explicitly set LTCXXCOMPILE so that EXTRA_CXX_FLAGS is
ac6d1200	200	# last. (That way, things like -O2 passed down from the toplevel can
b1d6986c	201	# be overridden by --enable-debug and --enable-cxx-flags.)
0b284728 BK	202	LTCXXCOMPILE = \
	203	$(LIBTOOL) --tag CXX \
	204	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
	205	--mode=compile $(CXX) $(INCLUDES) \
b1d6986c	206	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS)
8bae34da BK	207
	208	LTLDFLAGS = $(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.
0b284728 BK	216	CXXLINK = \
	217	$(LIBTOOL) --tag CXX \
	218	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
	219	--mode=link $(CXX) \
2077db1b	220	$(VTV_CXXLINKFLAGS) \
0b284728 BK	221	$(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
0b284728 BK	222
6aa43d99	223	# Symbol versioning for shared libraries.
fb5c309d BK	224	if ENABLE_SYMVERS
fb5c309d BK	225	libstdc++-symbols.ver: ${glibcxx_srcdir}/$(SYMVER_FILE) \
f9314d01	226	$(port_specific_symbol_files)
cc2de92d RO	227	cp ${glibcxx_srcdir}/$(SYMVER_FILE) $@.tmp
cc2de92d RO	228	chmod +w $@.tmp
0df3f383	229	if test "x$(port_specific_symbol_files)" != x; then \
6defecc2	230	if grep '^# Appended to version file.' \
49a52ebc	231	$(port_specific_symbol_files) > /dev/null 2>&1; then \
cc2de92d	232	cat $(port_specific_symbol_files) >> $@.tmp; \
6defecc2	233	else \
cc2de92d RO	234	sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \
	235	sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \
	236	cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \
6defecc2 JJ	237	rm tmp.top tmp.bottom; \
6defecc2 JJ	238	fi; \
e6b7a69a	239	fi
9396206b	240	$(EGREP) -v '^[ ]*#(#\| \|$$)' $@.tmp \| \
d392c399	241	$(CC) -E -P -include $(CONFIG_HEADER) - > $@ \|\| (rm -f $@ ; exit 1)
cc2de92d	242	rm -f $@.tmp
f9314d01	243
c18dc5cc RO	244	CLEANFILES = libstdc++-symbols.ver
c18dc5cc RO	245
f9314d01	246	if ENABLE_SYMVERS_GNU
fb5c309d BK	247	version_arg = -Wl,--version-script=libstdc++-symbols.ver
	248	version_dep = libstdc++-symbols.ver
	249	endif
3cbc7af0 BK	250	if ENABLE_SYMVERS_GNU_NAMESPACE
	251	version_arg = -Wl,--version-script=libstdc++-symbols.ver
	252	version_dep = libstdc++-symbols.ver
	253	endif
c18dc5cc RO	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)
	267	endif
fb5c309d BK	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 \
a9fdd472 GK	272	${glibcxx_srcdir}/scripts/make_exports.pl \
	273	$(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
	274	perl ${glibcxx_srcdir}/scripts/make_exports.pl \
fb5c309d	275	libstdc++-symbols.ver \
a9fdd472 GK	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)
fb5c309d	280	endif
c18dc5cc RO	281
c18dc5cc RO	282	CLEANFILES += $(version_dep)
a9fdd472	283	else
6aa43d99	284	version_arg =
7b865c36	285	version_dep =
6aa43d99 BK	286	endif
6aa43d99 BK	287
56378d0e BK	288
56378d0e BK	289	# Control additional build primary rules.
56378d0e BK	290	all-once: libstdc++convenience.la $(STAMP_DEBUG)
	291	install-data-once: $(STAMP_INSTALL_DEBUG)
	292
	293	all-local: all-once
	294	install-data-local: install-data-once
	295	clean-local:
	296	rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG)
6aa43d99	297
8bae34da BK	298	# Make a non-installed convenience library, so that --disable-static
	299	# may work.
	300	libstdc++convenience.la: $(toolexeclib_LTLIBRARIES)
	301	$(CXXLINK) $(libstdc___la_LIBADD) $(LIBS); \
	302	if test ! -f .libs/libstdc++.a; then \
a7a790e9 BK	303	cp .libs/libstdc++convenience.a .libs/libstdc++.a; \
	304	fi; \
	305	echo `date` > stamp-libstdc++convenience;
8bae34da	306
56378d0e BK	307	# Added rules.
	308	# 1 debug library
	309	# 2 supra-convenience library
	310	if GLIBCXX_BUILD_DEBUG
	311	STAMP_DEBUG = build-debug
	312	STAMP_INSTALL_DEBUG = install-debug
	313	CLEAN_DEBUG = debug
	314	else
	315	STAMP_DEBUG =
	316	STAMP_INSTALL_DEBUG =
	317	CLEAN_DEBUG =
	318	endif
6aa43d99	319
56378d0e	320	# Build a debug variant.
8d03ad01	321	# Take care to fix all possibly-relative paths.
56378d0e	322	debugdir = ${glibcxx_builddir}/src/debug
e6b7a69a	323	stamp-debug:
6aa43d99 BK	324	if test ! -d ${debugdir}; then \
6aa43d99 BK	325	mkdir -p ${debugdir}; \
56378d0e	326	for d in $(SUBDIRS); do mkdir -p ${debugdir}/$$d; done; \
6aa43d99	327	(cd ${debugdir}; \
7ec3af37	328	sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
8d03ad01	329	-e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
7ec3af37	330	-e 's/srcdir = \.\./srcdir = ..\/../' \
9606fadb	331	-e 's/VPATH = \.\./VPATH = ..\/../' \
3d7c150e	332	-e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
8d03ad01	333	-e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
56378d0e BK	334	< ../Makefile > Makefile ; \
	335	for d in . $(SUBDIRS); do \
	336	sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
	337	-e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
	338	-e 's/srcdir = \.\./srcdir = ..\/../' \
	339	-e 's/VPATH = \.\./VPATH = ..\/../' \
	340	-e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
	341	-e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
	342	< ../$$d/Makefile > $$d/Makefile ; \
	343	done) ; \
6aa43d99	344	fi; \
e6b7a69a	345	echo `date` > stamp-debug;
6aa43d99	346
56378d0e BK	347	build-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:,' \
c07e30ca	352	-e '/vpath/!s,src/c,src/debug/c,' \
56378d0e	353	< Makefile.tmp > Makefile ; \
c07e30ca	354	rm -f Makefile.tmp ; \
56378d0e BK	355	$(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
	356	toolexeclibdir=$(glibcxx_toolexeclibdir)/debug all) ;
	357
	358	# Install debug library.
	359	install-debug: build-debug
	360	(cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
	361	toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ;