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We have various sub directories in glib/ and gio/ (eg: inotify, gnulib, pcre, xdgmime, etc.) that build convenience libraries that are then included into libglib and libgio. The files in these directories need to be built with the same visibility policy as the files in the first level directories, so add CFLAGS for them all. This wasn't a problem when the visibility flags were set directly in CFLAGS but then we had to deal with some modules that we built that we explicitly wanted to export symbols from. For now, we can keep things the way they are because it's less hacky and although it's a theoretical hazard to forget these CFLAGS, we rarely add new subdirectories to the build.
The sources are derived from Bruno Haible's libcharset library included with libiconv: http//www.gnu.org/software/libiconv The 'update.sh' script in this directory, when pointed at the original sources updates the files in this directory (and elsewhere in the GLib distribution) to the new version The 'make-patch.sh' script in this directory regenerates the patch files included in this directory from a copy of the pristine sources and the files in this directory. The license on the portions from libiconv portions is reproduced below. Owen Taylor 26 September 2001 Updated to libiconv-1.12. Behdad Esfahbod 20 May 2008 ==== /* Determine a canonical name for the current locale's character encoding. Copyright (C) 2000-2001 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Written by Bruno Haible <haible@clisp.cons.org>. */