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ed6dccd00d
libtool defaults to filtering flags passed at link-time. This brings the filtering in GCC's 'fork' of libtool into sync with upstream libtool commit 22a7e547e9857fc94fe5bc7c921d9a4b49c09f8e. In particular, this now allows some harmless diagnostic flags (especially useful for things like -Werror=odr), more optimization flags, and some Clang-specific options. GCC's -flto documentation mentions: > To use the link-time optimizer, -flto and optimization options should be > specified at compile time and during the final link. It is recommended > that you compile all the files participating in the same link with the > same options and also specify those options at link time. This allows compliance with that. * ltmain.sh (func_mode_link): Allow various flags through filter. |
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This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.