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Jonathan Wakely cf4b581f2e Fix build for systems without POSIX truncate 
Older versions of newlib do not provide truncate so add a configure
check for it, and provide a fallback definition.

There were also some missing exports in the linker script, which went
unnoticed because there are no tests for some functions. A new link-only
test checks that every filesystem operation function is defined by the
library.

	* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for truncate.
	* config.h.in: Regenerate.
	* config/abi/pre/gnu.ver: Order patterns for filesystem operations
	alphabetically and add missing entries for copy_symlink,
	hard_link_count, rename, and resize_file.
	* configure: Regenerate.
	* src/c++17/fs_ops.cc (resize_file): Remove #if so posix::truncate is
	used unconditionally.
	* src/filesystem/ops-common.h (__gnu_posix::truncate)
	[!_GLIBCXX_HAVE_TRUNCATE]: Provide fallback definition that only
	supports truncating to zero length.
	* testsuite/27_io/filesystem/operations/all.cc: New test.
	* testsuite/27_io/filesystem/operations/resize_file.cc: New test.

From-SVN: r267647
 		2019-01-07 12:38:51 +00:00
..
config Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
doc Update copyright years. 2019-01-01 13:31:55 +01:00
include PR libstdc++/87431 fix regression introduced by r264574 2019-01-06 20:52:34 +00:00
libsupc++ Update copyright years. 2019-01-01 13:31:55 +01:00
po Update copyright years. 2019-01-01 13:31:55 +01:00
python Update copyright years. 2019-01-01 13:31:55 +01:00
scripts Update copyright years. 2019-01-01 13:31:55 +01:00
src Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
testsuite Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
ChangeLog Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
ChangeLog-1998 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-1999 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2000 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2001 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2002 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2003 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2004 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2005 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2006 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2007 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2008 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2009 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2010 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2011 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2012 ChangeLog rotation. 2013-01-03 10:47:48 +01:00
ChangeLog-2013 * ChangeLog-2013: Correct an old entry. 2014-05-26 23:49:19 +02:00
ChangeLog-2014 Rotate libstdc++-v3/ChangeLog 2015-01-02 16:50:36 +00:00
ChangeLog-2015 Update copyright years. 2016-01-04 15:30:50 +01:00
ChangeLog-2016 Update copyright years. 2017-01-01 13:07:43 +01:00
ChangeLog-2017 Update copyright years. 2018-01-03 11:03:58 +01:00
ChangeLog-2018 Update copyright years. 2019-01-01 13:31:55 +01:00
Makefile.am Update copyright years. 2019-01-01 13:31:55 +01:00
Makefile.in Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
README mainpage.html: Add in corrected links. 2008-02-12 02:10:57 +00:00
acinclude.m4 Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
aclocal.m4 Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
config.h.in Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
configure Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
configure.ac PR libstdc++/67843 set shared_ptr lock policy at build-time 2018-11-27 23:25:56 +00:00
configure.host Don't force visibility to hidden for Darwin > 8. 2018-08-25 09:02:28 +00:00
crossconfig.m4 Define _GLIBCXX_USE_DEV_RANDOM as replacement for _GLIBCXX_USE_RANDOM_TR1 2018-10-16 15:49:29 +01:00
fragment.am PR libstdc++/86450 use -Wabi=2 and simplify -Werror use 2018-07-17 14:18:47 +01:00
linkage.m4 linkage.m4 (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE): New. 2013-02-11 12:50:13 -05:00

README 

file: libstdc++-v3/README

New users may wish to point their web browsers to the file
index.html in the 'doc/html' subdirectory.  It contains brief
building instructions and notes on how to configure the library in
interesting ways.