1## Makefile for the C++03 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 25include $(top_srcdir)/fragment.am 26 27# Convenience library for C++11 runtime. 28noinst_LTLIBRARIES = libc++11convenience.la 29 30headers = 31 32sources = \ 33 chrono.cc \ 34 condition_variable.cc \ 35 debug.cc \ 36 functexcept.cc \ 37 functional.cc \ 38 future.cc \ 39 hash_c++0x.cc \ 40 hashtable_c++0x.cc \ 41 limits.cc \ 42 mutex.cc \ 43 placeholders.cc \ 44 regex.cc \ 45 shared_ptr.cc \ 46 system_error.cc \ 47 thread.cc 48 49if ENABLE_EXTERN_TEMPLATE 50XTEMPLATE_FLAGS = -fno-implicit-templates 51inst_sources = \ 52 fstream-inst.cc \ 53 string-inst.cc \ 54 wstring-inst.cc 55else 56XTEMPLATE_FLAGS = 57inst_sources = 58endif 59 60vpath % $(top_srcdir)/src/c++11 61 62libc__11convenience_la_SOURCES = $(sources) $(inst_sources) 63 64# AM_CXXFLAGS needs to be in each subdirectory so that it can be 65# modified in a per-library or per-sub-library way. Need to manually 66# set this option because CONFIG_CXXFLAGS has to be after 67# OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden 68# as the occasion calls for it. 69AM_CXXFLAGS = \ 70 -std=gnu++11 \ 71 $(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \ 72 $(XTEMPLATE_FLAGS) \ 73 $(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS) 74 75AM_MAKEFLAGS = \ 76 "gxx_include_dir=$(gxx_include_dir)" 77 78# Libtool notes 79 80# 1) In general, libtool expects an argument such as `--tag=CXX' when 81# using the C++ compiler, because that will enable the settings 82# detected when C++ support was being configured. However, when no 83# such flag is given in the command line, libtool attempts to figure 84# it out by matching the compiler name in each configuration section 85# against a prefix of the command line. The problem is that, if the 86# compiler name and its initial flags stored in the libtool 87# configuration file don't match those in the command line, libtool 88# can't decide which configuration to use, and it gives up. The 89# correct solution is to add `--tag CXX' to LTCXXCOMPILE and maybe 90# CXXLINK, just after $(LIBTOOL), so that libtool doesn't have to 91# attempt to infer which configuration to use. 92# 93# The second tag argument, `--tag disable-shared` means that libtool 94# only compiles each source once, for static objects. In actuality, 95# glibcxx_lt_pic_flag and glibcxx_compiler_shared_flag are added to 96# the libtool command that is used create the object, which is 97# suitable for shared libraries. The `--tag disable-shared` must be 98# placed after --tag CXX lest things CXX undo the affect of 99# disable-shared. 100 101# 2) Need to explicitly set LTCXXCOMPILE so that AM_CXXFLAGS is 102# last. (That way, things like -O2 passed down from the toplevel can 103# be overridden by --enable-debug.) 104LTCXXCOMPILE = \ 105 $(LIBTOOL) --tag CXX --tag disable-shared \ 106 $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ 107 --mode=compile $(CXX) $(TOPLEVEL_INCLUDES) \ 108 $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) 109 110LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS)) 111 112# 3) We'd have a problem when building the shared libstdc++ object if 113# the rules automake generates would be used. We cannot allow g++ to 114# be used since this would add -lstdc++ to the link line which of 115# course is problematic at this point. So, we get the top-level 116# directory to configure libstdc++-v3 to use gcc as the C++ 117# compilation driver. 118CXXLINK = \ 119 $(LIBTOOL) --tag CXX --tag disable-shared \ 120 $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \ 121 --mode=link $(CXX) \ 122 $(OPT_LDFLAGS) $(SECTION_LDFLAGS) $(AM_CXXFLAGS) $(LTLDFLAGS) -o $@ 123