0214010c60
2001-01-29 Benjamin Kosnik <bkoz@redhat.com>
Preliminary named locales.
* acinclude.m4 (GLIBCPP_ENABLE_CLOCALE): New macro.
* aclocal.m4: Regenerate.
* configure.in: Use it.
* configure: Regerate.
* src/Makefile.am (sources): Add c++locale.cc.
(build_headers): Add c++locale.h.
* src/Makefile.in: Regenerate.
* config/c_locale_gnu.h: New file.
* config/c_locale_gnu.cc: New file. Non-inline member functions
for named locales, gnu-specific.
* config/c_locale_generic.h: New file.
* config/c_locale_generic.cc: New file. Non-inline member
functions for named locales, generic version.
* docs/html/configopts.html: Add documentation on new options.
* include/bits/locale_facets.h (class _Messages): Remove.
(class _Moneypunct): Remove.
* src/locale-inst.cc: Remove.
* include/bits/locale_facets.h (class _Collate): Remove.
* src/locale-inst.cc (std): Remove.
* src/locale.cc: And here.
* include/bits/localefwd.h (locale::_M_coalesce): New
function. Correctly put together multi-name locales.
(_Impl(const _Impl&, category, size_t)): Remove.
* include/bits/localefwd.h (locale::_Impl): Remove _M_construct_*
member functions.
(_M_normalize_category_names): Remove.
(_M_replace_categories): Fix.
* src/localename.cc (locale::_Impl::_M_construct_collate): Remove.
(locale::_Impl::_M_construct_ctype): Remove.
(locale::_Impl::_M_construct_monetary): Remove.
(locale::_Impl::_M_construct_numeric): Remove.
(locale::_Impl::_M_construct_time): Remove.
(locale::_Impl::_M_construct_messages): Remove.
* include/bits/locale_facets.h (_Bad_use_facet): Remove.
(_Use_facet_failure_handle): Remove.
* src/locale.cc: Remove definitions.
* src/locale-inst.cc: And here.
* testsuite/22_locale/ctor_copy_dtor.cc (test01): Fixup. Add tests.
* src/localename.cc (locale::facet::_S_create_c_locale): Properly
create and error-check underlying locale object.
(locale::facet::_S_destroy_c_locale): Add, take care of properly
tearing down underlying locale object.
* include/bits/localefwd.h (locale::facet): Declare.
* testsuite/22_locale/members.cc: Don't test "fr_FR" locale for
correctness, as glibc apparently has incorrect info in it. Test
with it when it works again.....
* include/bits/localefwd.h (locale::_Impl::__vec_string):
Remove. Number of categories is fixed at six, so just simplify and
make this an array of strings.
(locale::_Impl::_M_has_name): Remove.
(locale::_Impl::_M_name): Remove.
(locale::_Impl::_M_category_names): Turns into...
(locale::_Impl::_M_names): ...this.
(locale::_Impl::_M_has_same_name()): New function.
* src/localename.cc (locale::_Impl::~_Impl()): Remove here.
(locale::_Impl::_Impl(size_t __refs, string __str)): Simplify
signature.
* src/locale.cc (locale::name()): Construct mangled name
accurately reflecting combined locale categories.
* src/locale.cc (locale::classic()): Don't initialize here.
* src/localename.cc (locale::_Impl::_Impl(size_t __num, size_t
__refs, bool __has_name, string __str): Do it here.
* include/bits/localefwd.h: _S_categories_num to
_S_num_categories. _S_facets_num to _S_num_facets.
(locale:🆔:id()): Explicitly set _M_index to zero.
* src/locale.cc: Same.
* src/locale.cc: (locale::locale(const char*)): Construct named
locales uniquely.
* src/locale.cc: Remove numpunct_byname ctors.
* testsuite/22_locale/numpunct_byname.cc: New file.
* testsuite/22_locale/numpunct.cc: New file.
* include/bits/localefwd.h (class locale): Change data members to
protected, from private.
(_Impl::_M_get_c_locale): Add member function.
(locale::facet::_M_get_global_impl()): Add member function.
* include/bits/locale_facets.h (numpunct::_M_init): Change to take
a __c_locale pointer.
(numpunct::numpunct( __c_locale*, size_t)): Add additonal ctor for
named locales.
* testsuite/22_locale/members.cc: New file, test name and combine.
* include/bits/locale_facets.h (class numpunct): Remove class
_Punct and _Numpunct. Rewrite class numpunct to be correct for
named locales.
* include/bits/localefwd.h (locale::_Imp::_M_c_locale): Add.
* src/localename.cc (_Impl::~_Impl()): Call __frelocale.
(_Imp::_Impl(size_t, size_t, bool, string)) Initialize _M_c_locale.
* src/locale-inst.cc: Remove _Numpunct, _Punct instantiations.
* testsuite/22_locale/numpunct_char_members.cc: New file.
From-SVN: r39347
202 lines
7.9 KiB
HTML
202 lines
7.9 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
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<HTML>
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<HEAD>
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<META NAME="AUTHOR" CONTENT="pme@sources.redhat.com (Phil Edwards)">
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<META NAME="KEYWORDS" CONTENT="libstdc++, libstdc++-v3, GCC, g++">
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<META NAME="DESCRIPTION" CONTENT="Configuration options for libstdc++-v3.">
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<META NAME="GENERATOR" CONTENT="vi and eight fingers">
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<TITLE>libstdc++-v3 configure options</TITLE>
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<LINK REL=StyleSheet HREF="lib3styles.css">
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<!-- $Id: configopts.html,v 1.4 2001/01/21 09:36:09 pme Exp $ -->
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</HEAD>
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<BODY>
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<H1 CLASS="centered"><A NAME="top">Interesting <TT>configure</TT>
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options</A></H1>
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<P>The latest version of this document is always available at
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<A HREF="http://gcc.gnu.org/onlinedocs/libstdc++/configopts.html">
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http://gcc.gnu.org/onlinedocs/libstdc++/configopts.html</A>.
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</P>
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<P>To the <A HREF="http://gcc.gnu.org/libstdc++/">libstdc++-v3 homepage</A>.
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<!-- ####################################################### -->
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<HR>
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<P>Here are some of the non-obvious options to libstdc++'s configure.
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Keep in mind that
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<!-- This SECnn should be the "Choosing Package Options" section. -->
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<A HREF="http://sources.redhat.com/autoconf/autoconf.html#SEC74">they
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all have opposite forms as well</A>
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(enable/disable and with/without). The defaults are for current
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development sources.
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</P>
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<P>The canonical way to find out the configure options that are
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available for a given set of libstdc++ sources is to go to the
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source directory and then type:<TT> ./configure --help</TT>
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<DL>
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<DT><TT>--enable-multilib </TT>[default]
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<DD><P>This is part of the generic multilib support for building cross
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compilers. As such, targets like "powerpc-elf" will have
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libstdc++ built many different ways: "-msoft-float"
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and not, etc. A different libstdc++ will be built for each of
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the different multilib versions. This option is on by default.
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</P>
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<DT><TT>--enable-debug </TT>
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<DD><P>The configure script will automatically detect the highest level
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of optimization that the compiler in use can use (certain
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versions of g++ will ICE if given the <TT>-O2</TT> option, but
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this is fixed in later versions of the compiler). This --enable
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flag will disable all optimizations and instruct the compiler to
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emit as much extra debugging information as it can, for use
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inside GDB.
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</P>
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<DT><TT>--enable-cstdio </TT>
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<DD><P>This is an abbreviated form of <TT>'--enable-cstdio=stdio'</TT>
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(described next).
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</P>
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<DT><TT>--enable-cstdio=LIB </TT>
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<DD><P>Select a target-specific I/O package. As of libstdc++-v3
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snapshot 2.91, the choices are 'libio' to specify the GNU
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I/O package (from
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<A HREF="http://sources.redhat.com/glibc/">glibc</A>, the
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GNU C library), or 'stdio' to use a generic "C"
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abstraction. The default is 'stdio'.
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</P>
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<DT><TT>--enable-clocale </TT>
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<DD><P>This is an abbreviated form of <TT>'--enable-clocale=generic'</TT>
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(described next).
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</P>
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<DT><TT>--enable-clocale=MODEL </TT>
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<DD><P>Select a target-specific underlying locale package. The
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choices are 'gnu' to specify an X/Open (IEEE Std. 1003.1-200x)
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model based on langinfo/iconv (from <A
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HREF="http://sources.redhat.com/glibc/">glibc</A>, the GNU C
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library), or 'generic' to use a generic "C"
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abstraction which consists of "C" locale info. The default is
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'generic'.
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</P>
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<DT><TT>--enable-long-long </TT>
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<DD><P>The "long long" type was introduced in C99. It is
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provided as a GNU extension to C++98 in g++. This flag builds
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support for "long long" into the library
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(specialized templates and the like). This option is off by
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default: if enabled, users will have to either use the
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new-style "C" headers by default (ie cmath not math.h)
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or add appropriate compile-time flags to all compile lines to
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allow "C" visibility of this feature (on GNU/Linux,
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the flag is -D_ISOC99_SOURCE).
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</P>
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<DT><TT>--enable-cheaders=OPTION </TT>
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<DD><P>This allows the user to define what kind of C headers are
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used. Options are: c, c_std, and c_shadow. These correspond
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to the source directory's include/c, include/c_std, and
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include/c_shadow directories.
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The default is c_std.
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</P>
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<DT><TT>--enable-threads </TT>
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<DD><P>This is an abbreviated form of <TT>'--enable-threads=yes'</TT>
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(described next).
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</P>
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<DT><TT>--enable-threads=LIB </TT>
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<DD><P>Select a threading library. As of libstdc++-v3 snapshot 2.91,
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the choices are:
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'yes' for some kind of default (hmmmmm);
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'decosf1', 'irix', 'mach', 'os2', 'posix'/'pthreads'
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(same thing),
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'solaris', 'win32', 'dce', or 'vxworks' to select the
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corresponding interface;
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and 'single', 'no', or 'none' for the null-case,
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single-threaded library.
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</P>
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<P>All of this is currently undergoing a lot of changes. As of
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2.91, 'single' and 'posix' are the only implemented
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models. Default is single.
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</P>
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<DT><TT>--enable-version-specific-runtime-libs </TT>
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<DD><P>Specify that run-time libraries should be installed in the
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compiler-specific subdirectory (i.e.,
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<TT>$(libdir)/gcc-lib/$(target_alias)/$(gcc_version)</TT>)
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instead of <TT>$(libdir)</TT>. This option is useful if you
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intend to use several versions of gcc in parallel. In addition,
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libstdc++'s include files will be installed in
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<TT>$(libdir)/gcc-lib/$(target_alias)/$(gcc_version)/include/g++</TT>,
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unless you also specify
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<TT>--with-gxx-include-dir=_dirname_</TT> during configuration.
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</P>
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<DT><TT>--with-gxx-include-dir=<include-files dir></TT>
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<DD><P>Adds support for named libstdc++ include directory. For instance,
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the following puts all the libstdc++ headers into a directory
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called "2.97-20001008" instead of the usual
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"g++-v3".
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<PRE>
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--with-gxx-include-dir=/foo/H-x86-gcc-3-c-gxx-inc/include/2.97-20001008</PRE>
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</P>
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<DT><TT>--enable-cxx-flags=FLAGS</TT>
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<DD><P>With this option, you can pass a string of -f (functionality)
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flags to the compiler to use when building libstdc++. FLAGS
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is a quoted string of options, like
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<PRE>
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--enable-cxx-flags='-fsquangle -fvtable-gc -ansi'</PRE>
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Note that the flags don't necessarily have to all be -f flags,
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as shown, but usually those are the ones that will make sense
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for experimentation and configure-time overriding.
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</P>
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<P>The advantage of --enable-cxx-flags over setting CXXFLAGS in
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the 'make' environment is that, if libgcc is automatically
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rebuilt, the same flags will be used when compiling those files
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as well, so that everything matches.
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</P>
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<P>Fun flags to try might include combinations of
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<PRE>
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-fstrict-aliasing
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-fnew-abi
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-fnew-exceptions
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-ffunction-sections
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-fvtable-gc</PRE>
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and -fno- forms of the same. Tell us (the mailing list) if
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you discover more!
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</P>
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<DT><TT>--enable-c-mbchar </TT>[default]
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<DD><P>Certain template specializations are required for wide
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character conversion support. This is tricky and currently
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changing rapidly, and can cause problems on new platforms.
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Disabling wide character specializations is useful for initial
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porting steps, but builds only a subset of what is required by
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ISO. Default is on, but the <TT>--enable-c_stdio=stdio </TT>
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option currently turns it off.
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</P>
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</DL>
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</P>
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<P>Return <A HREF="#top">to the top of the page</A> or
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<A HREF="http://gcc.gnu.org/libstdc++/">to the homepage</A>.
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</P>
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<!-- ####################################################### -->
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<HR>
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<P CLASS="fineprint"><EM>
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$Id: configopts.html,v 1.4 2001/01/21 09:36:09 pme Exp $
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</EM></P>
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