libstdc++-v3/src/Makefile.am

   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
  23 include $(top_srcdir)/fragment.am
  24
  25 SUBDIRS = c++98 c++11
  26
  27 # Cross compiler support.
  28 toolexeclib_LTLIBRARIES = libstdc++.la
  29
  30 vpath % $(top_srcdir)/src/c++98
  31 vpath % $(top_srcdir)/src/c++11
  32
  33 if GLIBCXX_LDBL_COMPAT
  34 ldbl_compat_sources = compatibility-ldbl.cc
  35 else
  36 ldbl_compat_sources =
  37 endif
  38
  39
  40 parallel_compat_sources = \
  41         compatibility-parallel_list.cc  compatibility-parallel_list-2.cc
  42
  43
  44 cxx98_sources = \
  45         compatibility.cc \
  46         compatibility-debug_list.cc \
  47         compatibility-debug_list-2.cc \
  48         ${ldbl_compat_sources}
  49
  50 cxx11_sources = \
  51         compatibility-c++0x.cc \
  52         compatibility-atomic-c++0x.cc \
  53         compatibility-thread-c++0x.cc \
  54         compatibility-chrono.cc
  55
  56 libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources)
  57
  58 libstdc___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
  64 libstdc___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
  70 libstdc___la_LDFLAGS = \
  71         -version-info $(libtool_VERSION) ${version_arg} -lm
  72
  73 libstdc___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.
  78 if GLIBCXX_LDBL_COMPAT
  79 compatibility-ldbl.lo: compatibility-ldbl.cc
  80         $(LTCXXCOMPILE) -mlong-double-64 -c $<
  81 compatibility-ldbl.o: compatibility-ldbl.cc
  82         $(CXXCOMPILE) -mlong-double-64 -c $<
  83 endif
  84
  85 # Use special rules for C++11 files/objects.
  86 compatibility-c++0x.lo: compatibility-c++0x.cc
  87         $(LTCXXCOMPILE) -std=gnu++11 -c $<
  88 compatibility-c++0x.o: compatibility-c++0x.cc
  89         $(CXXCOMPILE) -std=gnu++11 -c $<
  90
  91 compatibility-atomic-c++0x.lo: compatibility-atomic-c++0x.cc
  92         $(LTCXXCOMPILE) -std=gnu++11 -c $<
  93 compatibility-atomic-c++0x.o: compatibility-atomic-c++0x.cc
  94         $(CXXCOMPILE) -std=gnu++11 -c $<
  95
  96 compatibility-thread-c++0x.lo: compatibility-thread-c++0x.cc
  97         $(LTCXXCOMPILE) -std=gnu++11 -c $<
  98 compatibility-thread-c++0x.o: compatibility-thread-c++0x.cc
  99         $(CXXCOMPILE) -std=gnu++11 -c $<
 100
 101 compatibility-chrono.lo: compatibility-chrono.cc
 102         $(LTCXXCOMPILE) -std=gnu++11 -c $<
 103 compatibility-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.
 133 AM_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.)
 164 LTCXXCOMPILE = \
 165         $(LIBTOOL) --tag CXX \
 166         $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 167         --mode=compile $(CXX) $(INCLUDES) \
 168         $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS)
 169
 170 LTLDFLAGS = $(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.
 178 CXXLINK = \
 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.
 186 if ENABLE_SYMVERS
 187 libstdc++-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
 206 CLEANFILES = libstdc++-symbols.ver
 207
 208 if ENABLE_SYMVERS_GNU
 209 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 210 version_dep = libstdc++-symbols.ver
 211 endif
 212 if ENABLE_SYMVERS_GNU_NAMESPACE
 213 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 214 version_dep = libstdc++-symbols.ver
 215 endif
 216 if ENABLE_SYMVERS_SUN
 217 version_arg = -Wl,-M,libstdc++-symbols.ver-sun
 218 version_dep = libstdc++-symbols.ver-sun
 219 libstdc++-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)
 229 endif
 230 if ENABLE_SYMVERS_DARWIN
 231 version_arg = -Wl,-exported_symbols_list,libstdc++-symbols.explist
 232 version_dep = libstdc++-symbols.explist
 233 libstdc++-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)
 242 endif
 243
 244 CLEANFILES += $(version_dep)
 245 else
 246 version_arg =
 247 version_dep =
 248 endif
 249
 250
 251 # Control additional build primary rules.
 252 all-once: libstdc++convenience.la $(STAMP_DEBUG)
 253 install-data-once: $(STAMP_INSTALL_DEBUG)
 254
 255 all-local: all-once
 256 install-data-local: install-data-once
 257 clean-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.
 262 libstdc++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
 272 if GLIBCXX_BUILD_DEBUG
 273 STAMP_DEBUG = build-debug
 274 STAMP_INSTALL_DEBUG = install-debug
 275 CLEAN_DEBUG = debug
 276 else
 277 STAMP_DEBUG =
 278 STAMP_INSTALL_DEBUG =
 279 CLEAN_DEBUG =
 280 endif
 281
 282 # Build a debug variant.
 283 # Take care to fix all possibly-relative paths.
 284 debugdir = ${glibcxx_builddir}/src/debug
 285 stamp-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
 309 build-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.
 321 install-debug: build-debug
 322         (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
 323         toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ;