# Cross compiler support.
toolexeclib_LTLIBRARIES = libstdc++.la
-vpath % $(top_srcdir)/src
-vpath % $(top_srcdir)
+vpath % $(top_srcdir)/src/c++98
+vpath % $(top_srcdir)/src/c++11
-libstdc___la_SOURCES =
+if GLIBCXX_LDBL_COMPAT
+ldbl_compat_sources = compatibility-ldbl.cc
+else
+ldbl_compat_sources =
+endif
+
+if ENABLE_PARALLEL
+parallel_compat_sources = \
+ compatibility-parallel_list.cc compatibility-parallel_list-2.cc
+else
+parallel_compat_sources =
+endif
+
+cxx98_sources = \
+ compatibility.cc \
+ compatibility-debug_list.cc \
+ compatibility-debug_list-2.cc \
+ compatibility-list.cc \
+ compatibility-list-2.cc \
+ ${ldbl_compat_sources} \
+ ${parallel_compat_sources}
+
+cxx11_sources = \
+ compatibility-c++0x.cc \
+ compatibility-atomic-c++0x.cc \
+ compatibility-thread-c++0x.cc
+
+libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources)
libstdc___la_LIBADD = \
$(GLIBCXX_LIBS) \
libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS)
-# AM_CXXFLAGS needs to be in each subdirectory so that it can be
+# Use special rules for parallel mode compilation.
+PARALLEL_FLAGS = -fopenmp -D_GLIBCXX_PARALLEL -I$(glibcxx_builddir)/../libgomp
+compatibility-parallel_list.lo: compatibility-parallel_list.cc
+ $(LTCXXCOMPILE) -c $<
+compatibility-parallel_list.o: compatibility-parallel_list.cc
+ $(CXXCOMPILE) -c $<
+
+compatibility-parallel_list-2.lo: compatibility-parallel_list-2.cc
+ $(LTCXXCOMPILE) -c $<
+compatibility-parallel_list-2.o: compatibility-parallel_list-2.cc
+ $(CXXCOMPILE) -c $<
+
+# 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 $<
+
+# 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 = \
+ $(glibcxx_compiler_pic_flag) \
$(XTEMPLATE_FLAGS) \
- $(WARN_CXXFLAGS) \
- $(OPTIMIZE_CXXFLAGS) \
- $(CONFIG_CXXFLAGS)
-
-
-# libstdc++ libtool notes
+ $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
-# 1) Need to explicitly set LTCXXCOMPILE so that AM_CXXFLAGS is
-# last. (That way, things like -O2 passed down from the toplevel can
-# be overridden by --enable-debug.)
+# Libtool notes
-# 2) In general, libtool expects an argument such as `--tag=CXX' when
+# 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
# 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
-LTCXXCOMPILE = $(LIBTOOL) --tag CXX \
- $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile \
- $(CXX) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
- $(AM_CXXFLAGS) $(CXXFLAGS)
+# 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 AM_CXXFLAGS is
+# last. (That way, things like -O2 passed down from the toplevel can
+# be overridden by --enable-debug.)
+LTCXXCOMPILE = \
+ $(LIBTOOL) --tag CXX \
+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ --mode=compile $(CXX) $(INCLUDES) \
+ $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
# 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) $(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
+CXXLINK = \
+ $(LIBTOOL) --tag CXX \
+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
+ --mode=link $(CXX) \
+ $(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) ./libstdc++-symbols.ver
- chmod +w ./libstdc++-symbols.ver
+ 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 > /dev/null 2>&1; then \
- cat $(port_specific_symbol_files) >> $@; \
+ cat $(port_specific_symbol_files) >> $@.tmp; \
else \
- sed -n '1,/DO NOT DELETE/p' $@ > tmp.top; \
- sed -n '/DO NOT DELETE/,$$p' $@ > tmp.bottom; \
- cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@; \
+ sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \
+ sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \
+ cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \
rm tmp.top tmp.bottom; \
fi; \
fi
+ $(EGREP) -v '^[ ]*#(#| |$$)' $@.tmp | \
+ $(CC) -E -P -include $(CONFIG_HEADER) - > $@ || (rm -f $@ ; exit 1)
+ rm -f $@.tmp
CLEANFILES = libstdc++-symbols.ver
if ENABLE_SYMVERS_GNU
-if ENABLE_SYMVERS_SOL2
-version_arg = -Wl,--version-script,libstdc++-symbols.ver-sol2
-version_dep = libstdc++-symbols.ver-sol2
-libstdc++-symbols.ver-sol2 : libstdc++-symbols.ver
- sed -e '/^#ifdef HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT/,/^#endif/d' $< \
- > $@ || (rm -f $@ ; exit 1)
-else
version_arg = -Wl,--version-script=libstdc++-symbols.ver
version_dep = libstdc++-symbols.ver
endif
-endif
if ENABLE_SYMVERS_GNU_NAMESPACE
version_arg = -Wl,--version-script=libstdc++-symbols.ver
version_dep = libstdc++-symbols.ver
version_dep =
endif
-# Added rules.
-# 1 debug library
-# 2 supra-convenience library
-if GLIBCXX_BUILD_DEBUG
-all-local: libstdc++convenience.la build_debug
-install-data-local: install_debug
-else
-all-local: libstdc++convenience.la
-install-data-local:
-endif
+
+# Control additional build primary rules.
+all-once: libstdc++convenience.la $(STAMP_DEBUG)
+install-data-once: $(STAMP_INSTALL_DEBUG)
+
+all-local: all-once
+install-data-local: install-data-once
+clean-local:
+ rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG)
# Make a non-installed convenience library, so that --disable-static
# may work.
fi; \
echo `date` > stamp-libstdc++convenience;
-debugdir = debug
+# Added rules.
+# 1 debug library
+# 2 supra-convenience library
+if GLIBCXX_BUILD_DEBUG
+STAMP_DEBUG = build-debug
+STAMP_INSTALL_DEBUG = install-debug
+CLEAN_DEBUG = debug
+else
+STAMP_DEBUG =
+STAMP_INSTALL_DEBUG =
+CLEAN_DEBUG =
+endif
-# Build a set of debug objects here.
+# Build a debug variant.
# Take care to fix all possibly-relative paths.
+debugdir = ${glibcxx_builddir}/src/debug
stamp-debug:
if test ! -d ${debugdir}; then \
mkdir -p ${debugdir}; \
+ for d in $(SUBDIRS); do mkdir -p ${debugdir}/$$d; done; \
(cd ${debugdir}; \
sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
-e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
-e 's/VPATH = \.\./VPATH = ..\/../' \
-e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
-e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
- -e 's/all-local: build_debug/all-local:/' \
- -e 's/install-data-local: install_debug/install-data-local:/' \
- < ../Makefile > Makefile) ; \
+ < ../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} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' all)
+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 ; \
+ $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
+ toolexeclibdir=$(glibcxx_toolexeclibdir)/debug all) ;
-# Install debug library here.
-install_debug:
- (cd ${debugdir} && $(MAKE) \
- toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install)
+# Install debug library.
+install-debug: build-debug
+ (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
+ toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ;
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