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* iomanip.h: Use __extension__ for `extern' explicit template instantiations. * sinst.cc: Don't explicitly instantiation string_char_traits<char>. * cinst.cc: Likewiwse, for complex<float>, complex<double>, complex<long double>. * extend.texi: Remove description of extension to explicit instantiation that is now endorsed by standard C++. * decl2.c (grok_array_decl): Add comment. (mark_used): Don't instantiate an explicit instantiation. * friend.c (make_friend_class): Remove bogus comment. Fix check for partial specializations. * pt.c (check_explicit_specialization): Don't SET_DECL_EXPLICIT_INSTANTIATION here. (mark_decl_instantiated): Or here. (do_decl_instantiation): Do it here, instead. Add checks for duplicate explicit instantiations, etc. Tidy. (do_type_instantiation): Likewise. (instantiate_decl): Improve comments. Complain about explicit instantiations where no definition is available. * cp-tree.h (ansi_null_node): Remove. * call.c (build_over_call): Warn about converting NULL to an arithmetic type. * cvt.c (build_expr_type_conversion): Likewise. Use null_ptr_cst_p instead of expanding it inline. * decl.c (ansi_null_node): Remove. (init_decl_processing): Make null_node always have integral type. * except.c (build_throw): Warn about converting NULL to an arithmetic type. * lex.c (init_parse): Remove handling of ansi_null_node. * pt.c (type_unification_real): Don't convert NULL to void* type. * typeck.c (build_binary_op_nodefault): Fix NULL warnings. (convert_for_assignment): Warn about converting NULL to an arithmetic type. (convert_for_initialization): Likewise. From-SVN: r21915
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.