Boost.Signals is deprecated. This fixes bug #9943.
The only thing left to do is to rewrite (or get rid of) the boost -mt test
in config/lyxinclude.m4 not to use signals anymore.
As discussed on the list. If no C++11 compiler is found configuration stops
with an error. There are now unneeded parts of boost, the will be removed in
a second commit.
For a suffixed version (with suffix 2.3) and installation dir (/usr/local)
the new paths are:
binary -> /usr/local/bin
system-lib -> /usr/local/share/lyx2.3
fonts -> /usr/local/fonts/truetype/lyx2.3
manuals -> /usr/local/man/man1
locales -> /usr/local/share/locale
tex -> /usr/local/texmf/tex/latex/lyx2.3
Nothing changes for already cached values.
With fresh build-dir and in 'AUTO'-mode we try to determine if the c++ compiler
is able to use this feature.
It works with gcc >= 4.9.0 and clang (with libc++ or gcc libstdc++ from gcc
>= 4.9.0). The MSVC parg is missing, because I cannot test it, and the
autotools build still link against boost::regex even if it is not needed, but
I don't know how to fix that.
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.
If we compile in C++11 mode, do not use the boost replacements for bind,
functional and shared_ptr. regex is excluded, since it misses match_partial, and
gcc does not provide a usable one in versions less than 4.9.0.
I also removed the #define for match_partial, since this is dangerous. Now you
get a compile error instead of subtle runtime differences.
The interface is now 100% unit tested, and the typedefs depend on the new
STD_STRING_USES_COW configuration variable. The only missing bit is to detect
clang and disable STD_STRING_USES_COW for clang.
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.
