| Commit message (Collapse) | Author | Age | Files | Lines |
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- replace obsolete AC_TRY_COMPILE with AC_COMPILE_IFELSE
- fix bug of empty else branch in shell code when 2nd argument empty
- Increase serial number from 14 to 15.
- If second argument to macro AX_TLS is empty or null, the else branch
of the generated shell code was empty and caused a shell error. Fix
this bug by typing the null statement ':' in this case.
- Same if first macro argument is null.
- Add comma in AC_DEFINE description.
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The AX_TLS macro tests for thread local storage support. It checks a variety of
non-standard extensions, but forgets to try the official C++11 keyword
thread_local as well.
Submitted via https://savannah.gnu.org/patch/?9424.
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ISO/IEC 9899:2011 defines the _Thread_local storage-class specifier.
We should test for it before testing for any pre C11 specifiers.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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* This change also eliminates a variable only assigned/used once.
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Converts to AS_CASE/AS_IF; update doc to note that ICC is also supported.
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http://www.gnu.org/software/autoconf-archive/MACRO-NAME.html
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The serial number corresponds to the number of commits that have
modified the macro in the Archive's Git repository. Refer to
http://www.gnu.org/software/libtool//manual/automake/Serials.html to
find out why these numbers are useful.
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* Consistently refer to this project as Autoconf Archive.
* Removed the LAST MODIFICATION section, because that information is redundant
in the presence of Git.
* COPYLEFT has been renamed to LICENSE: some licenses, like all-permissive,
are no copylefts.
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The markup format distributed by the Autoconf Macro Archive underwent
the following changes:
* All archive entries use '#' comment delimiters, rather than 'dnl',
because we would like those comments to go into the generated
configure script. It should be simple for everyone to determine
where the macro came from originally, who wrote it, and where the
latest version can be retrieved. To achieve this, every macro used
to start with a distinguished line that shows the URL of its
respective home page, i.e.:
| ##### http://autoconf-archive.cryp.to/ax_prog_acme.html
As it happens, the aclocal utility distributed with Automake
ignores all comment lines that start with a double hash '##', thus
those home page URLs will not make it into any automatically
generated aclocal.m4 file. Duh. To remedy the situation, the
following markup is now used instead:
| # =================================================================
| # http://autoconf-archive.cryp.to/ax_prog_acme.html
| # =================================================================
* The 2.x versions of the GNU GPL and LGPL contain the following
clause:
| You should have received a copy of the <GNU LICENSE NAME> along
| with this program; if not, write to the Free Software Foundation,
| Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Version 3.x, however, smartly refers the reader to the Web:
| You should have received a copy of the GNU General Public License
| along with this program. If not, see <http://www.gnu.org/licenses/>.
This patch changes all GPL2 and LGPL2 macros to do the same, i.e.
to refer to the GNU web site for the full text of the respective
license.
* Since all m4 files had to be changed in this commit anyway, the
opportunity was used to increase the auto-fill column for
documentation from 65 to 75 characters per line. It's a trivial
change, but it just looks nicer.
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The attached macro attempts to detect compiler support for TLS
storage class extensions and how to use that extension. It then
defines the macro TLS to the keyword it found.
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