libstdc++-v3/src/Makefile.am

   1 ## Makefile for the C++11 sources of the GNU C++ Standard library.
   2 ##
   3 ## Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
   4 ## 2006, 2007, 2008, 2009, 2010, 2011, 2012
   5 ## Free Software Foundation, Inc.
   6 ##
   7 ## This file is part of the libstdc++ version 3 distribution.
   8 ## Process this file with automake to produce Makefile.in.
   9
  10 ## This file is part of the GNU ISO C++ Library.  This library is free
  11 ## software; you can redistribute it and/or modify it under the
  12 ## terms of the GNU General Public License as published by the
  13 ## Free Software Foundation; either version 3, or (at your option)
  14 ## any later version.
  15
  16 ## This library is distributed in the hope that it will be useful,
  17 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ## GNU General Public License for more details.
  20
  21 ## You should have received a copy of the GNU General Public License along
  22 ## with this library; see the file COPYING3.  If not see
  23 ## <http://www.gnu.org/licenses/>.
  24
  25 include $(top_srcdir)/fragment.am
  26
  27 SUBDIRS = c++98 c++11
  28
  29 # Cross compiler support.
  30 toolexeclib_LTLIBRARIES = libstdc++.la
  31
  32 vpath % $(top_srcdir)/src/c++98
  33 vpath % $(top_srcdir)/src/c++11
  34
  35 if GLIBCXX_LDBL_COMPAT
  36 ldbl_compat_sources = compatibility-ldbl.cc
  37 else
  38 ldbl_compat_sources =
  39 endif
  40
  41
  42 parallel_compat_sources = \
  43         compatibility-parallel_list.cc  compatibility-parallel_list-2.cc
  44
  45
  46 cxx98_sources = \
  47         compatibility.cc \
  48         compatibility-debug_list.cc \
  49         compatibility-debug_list-2.cc \
  50         ${ldbl_compat_sources}
  51
  52 cxx11_sources = \
  53         compatibility-c++0x.cc \
  54         compatibility-atomic-c++0x.cc \
  55         compatibility-thread-c++0x.cc
  56
  57 libstdc___la_SOURCES = $(cxx98_sources) $(cxx11_sources)
  58
  59 libstdc___la_LIBADD = \
  60         $(GLIBCXX_LIBS) \
  61         $(top_builddir)/libsupc++/libsupc++convenience.la \
  62         $(top_builddir)/src/c++98/libc++98convenience.la \
  63         $(top_builddir)/src/c++11/libc++11convenience.la
  64
  65 libstdc___la_DEPENDENCIES = \
  66         ${version_dep} \
  67         $(top_builddir)/libsupc++/libsupc++convenience.la \
  68         $(top_builddir)/src/c++98/libc++98convenience.la \
  69         $(top_builddir)/src/c++11/libc++11convenience.la
  70
  71 libstdc___la_LDFLAGS = \
  72         -version-info $(libtool_VERSION) ${version_arg} -lm
  73
  74 libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS)
  75
  76
  77 # Use special rules for compatibility-ldbl.cc compilation, as we need to
  78 # pass -mlong-double-64.
  79 if GLIBCXX_LDBL_COMPAT
  80 compatibility-ldbl.lo: compatibility-ldbl.cc
  81         $(LTCXXCOMPILE) -mlong-double-64 -c $<
  82 compatibility-ldbl.o: compatibility-ldbl.cc
  83         $(CXXCOMPILE) -mlong-double-64 -c $<
  84 endif
  85
  86 # Use special rules for C++11 files/objects.
  87 compatibility-c++0x.lo: compatibility-c++0x.cc
  88         $(LTCXXCOMPILE) -std=gnu++11 -c $<
  89 compatibility-c++0x.o: compatibility-c++0x.cc
  90         $(CXXCOMPILE) -std=gnu++11 -c $<
  91
  92 compatibility-atomic-c++0x.lo: compatibility-atomic-c++0x.cc
  93         $(LTCXXCOMPILE) -std=gnu++11 -c $<
  94 compatibility-atomic-c++0x.o: compatibility-atomic-c++0x.cc
  95         $(CXXCOMPILE) -std=gnu++11 -c $<
  96
  97 compatibility-thread-c++0x.lo: compatibility-thread-c++0x.cc
  98         $(LTCXXCOMPILE) -std=gnu++11 -c $<
  99 compatibility-thread-c++0x.o: compatibility-thread-c++0x.cc
 100         $(CXXCOMPILE) -std=gnu++11 -c $<
 101
 102 # A note on compatibility and static libraries.
 103 #
 104 # static lib == linked against only this version, should not need compat
 105 # shared lib == linked against potentially all compat versions
 106 #
 107 # Thus, the shared libs have more compat symbols, which can be found
 108 # segregated in the sources with -D_GLIBCXX_SHARED.
 109 #
 110 # In the sub-directories of libsupc++, src/c++98, src/c++11, only
 111 # -prefer-pic objects are generated for the convenience libraries.
 112 #
 113 # In the main src directory, make shared and static objects just for
 114 # the compat libraries. Shared objects are compiled with -prefer-pic
 115 # -D_GLIBCXX_SHARED and in the .libs sub-directory, static objects are
 116 # compiled with -prefer-pic (ie, -fPIC but not -D_GLIBCXX_SHARED) and
 117 # the main src directory.
 118 #
 119 # Why are objects destined for libstdc++.a compiled with -fPIC? First,
 120 # because -fPIC is not harmful to use for objects destined for static
 121 # libraries. In addition, using -fPIC will allow the use of static
 122 # libstdc++.a in the creation of other C++ shared libraries.
 123
 124 # AM_CXXFLAGS needs to be in each sub-directory so that it can be
 125 # modified in a per-library or per-sub-library way.  Need to manually
 126 # set this option because CONFIG_CXXFLAGS has to be after
 127 # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
 128 # as the occasion calls for it.
 129 AM_CXXFLAGS = \
 130         $(glibcxx_compiler_pic_flag) \
 131         $(XTEMPLATE_FLAGS) \
 132         $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
 133
 134 # Libtool notes
 135
 136 # 1) In general, libtool expects an argument such as `--tag=CXX' when
 137 # using the C++ compiler, because that will enable the settings
 138 # detected when C++ support was being configured.  However, when no
 139 # such flag is given in the command line, libtool attempts to figure
 140 # it out by matching the compiler name in each configuration section
 141 # against a prefix of the command line.  The problem is that, if the
 142 # compiler name and its initial flags stored in the libtool
 143 # configuration file don't match those in the command line, libtool
 144 # can't decide which configuration to use, and it gives up.  The
 145 # correct solution is to add `--tag CXX' to LTCXXCOMPILE and maybe
 146 # CXXLINK, just after $(LIBTOOL), so that libtool doesn't have to
 147 # attempt to infer which configuration to use.
 148 #
 149 # The second tag argument, `--tag disable-shared` means that libtool
 150 # only compiles each source once, for static objects. In actuality,
 151 # glibcxx_lt_pic_flag and glibcxx_compiler_shared_flag are added to
 152 # the libtool command that is used create the object, which is
 153 # suitable for shared libraries.  The `--tag disable-shared` must be
 154 # placed after --tag CXX lest things CXX undo the affect of
 155 # disable-shared.
 156
 157 # 2) Need to explicitly set LTCXXCOMPILE so that EXTRA_CXX_FLAGS is
 158 # last. (That way, things like -O2 passed down from the toplevel can
 159 # be overridden by --enable-debug and --enable-cxx-flags.)
 160 LTCXXCOMPILE = \
 161         $(LIBTOOL) --tag CXX \
 162         $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 163         --mode=compile $(CXX) $(INCLUDES) \
 164         $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) $(EXTRA_CXX_FLAGS)
 165
 166 LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
 167
 168 # 3) We'd have a problem when building the shared libstdc++ object if
 169 # the rules automake generates would be used.  We cannot allow g++ to
 170 # be used since this would add -lstdc++ to the link line which of
 171 # course is problematic at this point.  So, we get the top-level
 172 # directory to configure libstdc++-v3 to use gcc as the C++
 173 # compilation driver.
 174 CXXLINK = \
 175         $(LIBTOOL) --tag CXX \
 176         $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 177         --mode=link $(CXX) \
 178         $(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@
 179
 180
 181 # Symbol versioning for shared libraries.
 182 if ENABLE_SYMVERS
 183 libstdc++-symbols.ver:  ${glibcxx_srcdir}/$(SYMVER_FILE) \
 184                 $(port_specific_symbol_files)
 185         cp ${glibcxx_srcdir}/$(SYMVER_FILE) $@.tmp
 186         chmod +w $@.tmp
 187         if test "x$(port_specific_symbol_files)" != x; then \
 188           if grep '^# Appended to version file.' \
 189                $(port_specific_symbol_files) /dev/null > /dev/null 2>&1; then \
 190             cat $(port_specific_symbol_files) >> $@.tmp; \
 191           else \
 192             sed -n '1,/DO NOT DELETE/p' $@.tmp > tmp.top; \
 193             sed -n '/DO NOT DELETE/,$$p' $@.tmp > tmp.bottom; \
 194             cat tmp.top $(port_specific_symbol_files) tmp.bottom > $@.tmp; \
 195             rm tmp.top tmp.bottom; \
 196           fi; \
 197         fi
 198         $(EGREP) -v '^[         ]*#(#| |$$)' $@.tmp | \
 199           $(CC) -E -P -include $(CONFIG_HEADER) - > $@ || (rm -f $@ ; exit 1)
 200         rm -f $@.tmp
 201
 202 CLEANFILES = libstdc++-symbols.ver
 203
 204 if ENABLE_SYMVERS_GNU
 205 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 206 version_dep = libstdc++-symbols.ver
 207 endif
 208 if ENABLE_SYMVERS_GNU_NAMESPACE
 209 version_arg = -Wl,--version-script=libstdc++-symbols.ver
 210 version_dep = libstdc++-symbols.ver
 211 endif
 212 if ENABLE_SYMVERS_SUN
 213 version_arg = -Wl,-M,libstdc++-symbols.ver-sun
 214 version_dep = libstdc++-symbols.ver-sun
 215 libstdc++-symbols.ver-sun : libstdc++-symbols.ver \
 216                 $(toplevel_srcdir)/contrib/make_sunver.pl \
 217                 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
 218         CXXFILT="$(CXXFILT)"; export CXXFILT; \
 219         perl $(toplevel_srcdir)/contrib/make_sunver.pl \
 220           libstdc++-symbols.ver \
 221           $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
 222          `echo $(libstdc___la_LIBADD) | \
 223             sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
 224          > $@ || (rm -f $@ ; exit 1)
 225 endif
 226 if ENABLE_SYMVERS_DARWIN
 227 version_arg = -Wl,-exported_symbols_list,libstdc++-symbols.explist
 228 version_dep = libstdc++-symbols.explist
 229 libstdc++-symbols.explist : libstdc++-symbols.ver \
 230                 ${glibcxx_srcdir}/scripts/make_exports.pl \
 231                 $(libstdc___la_OBJECTS) $(libstdc___la_LIBADD)
 232         perl ${glibcxx_srcdir}/scripts/make_exports.pl \
 233           libstdc++-symbols.ver \
 234           $(libstdc___la_OBJECTS:%.lo=.libs/%.o) \
 235          `echo $(libstdc___la_LIBADD) | \
 236             sed 's,/\([^/.]*\)\.la,/.libs/\1.a,g'` \
 237          > $@ || (rm -f $@ ; exit 1)
 238 endif
 239
 240 CLEANFILES += $(version_dep)
 241 else
 242 version_arg =
 243 version_dep =
 244 endif
 245
 246
 247 # Control additional build primary rules.
 248 all-once: libstdc++convenience.la $(STAMP_DEBUG)
 249 install-data-once: $(STAMP_INSTALL_DEBUG)
 250
 251 all-local: all-once
 252 install-data-local: install-data-once
 253 clean-local:
 254         rm -rf libstdc++convenience.la stamp* $(CLEAN_DEBUG)
 255
 256 # Make a non-installed convenience library, so that --disable-static
 257 # may work.
 258 libstdc++convenience.la: $(toolexeclib_LTLIBRARIES)
 259         $(CXXLINK) $(libstdc___la_LIBADD) $(LIBS); \
 260         if test ! -f .libs/libstdc++.a; then \
 261           cp .libs/libstdc++convenience.a .libs/libstdc++.a; \
 262         fi; \
 263         echo `date` > stamp-libstdc++convenience;
 264
 265 # Added rules.
 266 # 1 debug library
 267 # 2 supra-convenience library
 268 if GLIBCXX_BUILD_DEBUG
 269 STAMP_DEBUG = build-debug
 270 STAMP_INSTALL_DEBUG = install-debug
 271 CLEAN_DEBUG = debug
 272 else
 273 STAMP_DEBUG =
 274 STAMP_INSTALL_DEBUG =
 275 CLEAN_DEBUG =
 276 endif
 277
 278 # Build a debug variant.
 279 # Take care to fix all possibly-relative paths.
 280 debugdir = ${glibcxx_builddir}/src/debug
 281 stamp-debug:
 282         if test ! -d ${debugdir}; then \
 283           mkdir -p ${debugdir}; \
 284           for d in $(SUBDIRS); do mkdir -p  ${debugdir}/$$d; done; \
 285           (cd ${debugdir}; \
 286           sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
 287               -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 288               -e 's/srcdir = \.\./srcdir = ..\/../' \
 289               -e 's/VPATH = \.\./VPATH = ..\/../' \
 290               -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
 291               -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 292           < ../Makefile > Makefile ; \
 293           for d in . $(SUBDIRS); do \
 294           sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
 295               -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 296               -e 's/srcdir = \.\./srcdir = ..\/../' \
 297               -e 's/VPATH = \.\./VPATH = ..\/../' \
 298               -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
 299               -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 300           < ../$$d/Makefile > $$d/Makefile ; \
 301           done) ; \
 302         fi; \
 303         echo `date` > stamp-debug;
 304
 305 build-debug: stamp-debug
 306           (cd ${debugdir}; \
 307           mv Makefile Makefile.tmp; \
 308           sed -e 's,all-local: all-once,all-local:,' \
 309               -e 's,install-data-local: install-data-once,install-data-local:,' \
 310               -e '/vpath/!s,src/c,src/debug/c,' \
 311           < Makefile.tmp > Makefile ; \
 312           rm -f Makefile.tmp ; \
 313           $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
 314           toolexeclibdir=$(glibcxx_toolexeclibdir)/debug all) ;
 315
 316 # Install debug library.
 317 install-debug: build-debug
 318         (cd ${debugdir} && $(MAKE) CXXFLAGS='$(DEBUG_FLAGS)' \
 319         toolexeclibdir=$(glibcxx_toolexeclibdir)/debug install) ;