Drop disabled by default and pretty useless memory tracing code and all
the overlapping and poorly documented build options related to it.
Remove memory.cpp entirely and update all the make/project files, but
preserve the now completely trivial wx/memory.h for compatibility and
also keep including wx/string.h from wx/object.h as it seems like a lot
of existing code actually depends on this, even if it should not.
Replace the options in the propgrid sample with a couple of other
debug-related options that were not used before to avoid leaving the
"Debugging Section" completely empty.
Assume they are always 1 now, there is no good reason to ever set them
to 0 any more.
Note that we still keep wxUSE_STD_IOSTREAM for now, but we can drop
wxUSE_STD_DEFAULT as it's not worth having it just for this single
option (previously it was used as the default value for 3 of them).
Don't use compiler-specific __thread and use the standard keyword
instead.
Keep the existing TLS-related macros for compatibility, but remove our
custom implementation of them, so that they're always trivial now.
Remove the port files and references to it from the common headers and
elsewhere.
Also remove GPE (GNOME PDA Environment) support as libgpewidget is
unmaintained since 2006 or so and has never been really used.
Use __WXGTK__ to test for any version of wxGTK now. Still define
__WXGTK20__ for compatibility, but always define it now and don't test
for it in the library code.
This port hasn't been updated for ages and is not used by anybody any
longer, so remove its code to facilitate maintenance.
Also remove references to this port from the documentation and most of
the other places (VMS-specific descrip.vms files still check for it
because it's not clear how to update them all), including configure.
Regenerate the latter and rebake all makefiles.
Finally document that this port is not available any longer.
Always use std::unordered_{map,set} when we use them at all, don't
bother with checking for their availability and with tr1 or even older
alternatives.
Consider that all still supported/existing platforms provide these
declarations, if they provide these functions at all (and they probably
all do, so we almost certainly could remove all the test for them, but
keep them for now).
Note that we still test for broken declarations as this might still be
useful on HP-UX 11 systems, where this problem was reported "only" 8
years ago.
By not using AC_CHECK_FUNCS() we avoid the problem when using it with
snprintf() when cross-compiling with the latest MinGW API headers, see
https://sourceforge.net/p/mingw-w64/bugs/935/ for more details.
This commit is best viewed ignoring whitespace-only changes.
The latter two are always defined in sys/types.h on all Unix systems and
we already define them for MSVC (which doesn't use configure anyhow).
The former type is always defined everywhere.
This type should always be defined in sys/types.h on any non-ancient
Unix system, so don't bother checking for it, which is not only wasteful
but can even be harmful because it can conflict with pid_t definitions
in the other libraries under Windows, where we (wrongly) define it as
int (which is actually a bug in autoconf, which was recently fixed, see
https://savannah.gnu.org/support/index.php?110296) when using CMake.
So just don't define it at all: it should be already defined under Unix
and we don't use it under MSW anyhow.
See https://github.com/microsoft/vcpkg/issues/19110
See #18150.
Using non-PCRE system regex library, which was the only build variant
when wxHAS_REGEX_ADVANCED was not defined, is not supported any more, so
simplify the code by not testing for it.
This is useless, all still supported compilers except ancient MSVS
versions (for which configure is not used anyhow) support variadic
macros, so don't waste time testing for them.
Note that the checks for HAVE_VARIADIC_MACROS in the sources are still
left because it is still possible to explicitly disable variadic macros
support using --disable-vararg_macros for strict C++98 compatibility.
All still supported versions of MinGW/Cygwin provide w32api.h file, so
there is no need to test for it.
This allows to simplify the code, but also remove the definition of
HAVE_W32API_H from bake- and makefiles and this, in turn, allows to get
rid of extra flags in MinGW format entirely, as we don't support gcc
2.95 for which they were originally needed neither.
Remove separate checks for dlerror() which don't seem to be needed under
any platform any longer.
No real changes, just slim down configure/CMake a tiny bit.
This function is not used any more since e289eb07e1 (Get rid of
non-POSIX code for loading dynlibs on *nix, 2020-05-13), so don't check
for it and don't defined the corresponding HAVE_SHL_LOAD symbol.
This is not really an option as building requires it to be 1, so don't
make it one in setup.h/configure/cmake and just hardcode it as 1 for
compatibility.
Closes#18558.
