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.
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
The current code is not able to unset an environment variable, only to set it to an empty value. This patch refactors a bit the Message class and uses a new EnvChanger helper class that allows to change temporarily an environment variable and that is able to unset variables if needed.
The patch also adds new functions hasEnv and unsetEnv in environment.cpp.
Open issues:
* there may be systems where unsetenv is not available and putenv("name=") does not do the right thing;
* unsetenv may lead to leaks on some platforms.
* when using unsetenv, we may need to remove strings from the internal map that setEnv uses.
This patch puts all projects into subfolders (at least for MSVS). In this
way, there is a better overview (especially if the number of test projects
will be increasing).
