The GNU libstdc++ that ships witch gcc 5 can be used with the same ABI as
older versions, or with a new ABI which is conformant to the C++11 standard.
LyX did not build if the latter was used:
https://kojipkgs.fedoraproject.org//work/tasks/1267/9651267/build.log
This is now fixed by detecting the ABI version and disabling the wrong forward
declarations. At the same time, STD_STRING_USES_COW is switched off for the
C++11 ABI version, because the std::basic_string implementation is now C++11
conformant. Since the GNU libstdc++ can also used by other compilers such as
clang, we must not test for the compiler version.
As discussed on the list. We don't need it anymore, either we have a modern
compiler that supports C++11, or we fall back to boost. I kept and adjusted
the regex #define, since we cannot use std regex completely yet.
The old detection did only work if CFLAGS contained -std=c++11, since ciso646
was only included for __cplusplus > 199711.
Thanks to Koernel for the cmake part.
1.) The only file which needs this define is src/version.cpp. Our use in config.h
resulted in recompiling most of our sources.
With this change, only version.cpp needs to be recompiled.
2.) Without reconfiguring, the old commit hash was still valid. Now the
detection of commit hash is done at compile time.
In collaboration with Scott Kostyshak:
With Qt 4 we could use Q_WS_X11, defined by FindQt4.cmake. In Qt 5,
there is no FindQt5.cmake. Instead we now define our own variable,
QT_USES_X11 by using class QX11Info available only on X11.
(http://qt-project.org/doc/qt-5/QX11Info.html)
The main consequence of this improved support is that now the keytests
can be run (ctest -R "keytest") when LyX is compiled with Qt 5.
Before, with Qt 5 we did not know if X11 was available, which is
needed by xvkbd, so the tests were not enabled. Note, however, that
many tests fail with Qt version 5.2.1 because there was a change in
the event handling mechanism in Qt that causes xvkbd to be unable to
pass capital letters (so case sensitive greps in the tests fail). This
needs to be investigated and reported.
This patch improves the cmake bundling process:
- reworked bundle handling for OS X: only when installing resources are copied, otherwise
only the smallest bundle is built
- on OS X, the utility programs (tex2lyx) are now installed in the right location
- it removes some unneeded BUNDLE DESTINATION
- it provides a basic support for QT plugins inclusion
- it properly builds a disk image on OS X (only the background image is missing)
- it fixes the library paths for all executables (not only LyX)
- Use the COPYING file for cmake install license
This target will update the gmo files if and only if the associated
po-file is modified. To determine whether a file is modified, 'git
status --porcelain' is used.
This follows up on commit 06782542.
The problems the comments in the build systems refer to seem to have been
fixed for years. [1] says the checks in libstdc++ have been improved, and
all supported FreeBSD versions enable wchar_t support unconditionally in
libstdc++. Additionally, this needlessly impacts FreeBSD when libc++ is used
instead of libstdc++.
[1] http://gcc.gnu.org/onlinedocs/libstdc++/faq.html#faq.freebsd_wchar
Given erroneous <lang>.po file, this yields to error on first call
to make. Nonetheless a new <lang>.gmo file is created. The following
calls to make do not get an error.
This patch prevents the <lang>.gmo creation on error.
Problem spotted by Scott.
The tests are now more robust if ctest uses '-j' (number of threads) parameter.
a.) keytests are running in sequence and in one thread only, no other thread running
b.) tex2lyx tests are locking in respect to each other
c.) Test gets one or more labels, so that we can select
ctest -L url
to run tests labeled url
d.) New macro settestlabel() to add labels to a test
