This is over 11 years old.

Alexandre Janniaux authored 2 years ago and Hugo Beauzée-Luyssen committed 2 years ago

C compilers can have GNU extensions to support typeof in C code, but
some C++ compilers like clang are removing the builtin since decltype
can be used in C++ without the constraints from typeof. Decltype is not
100% equivalent for this reason: references will be kept in the returned
type.

The check in m4/typeof.m4 comes from graydon/monotone and dovecot/core
and was slightly modified to namespace the define for C++ code.

Alexandre Janniaux authored 2 years ago and Hugo Beauzée-Luyssen committed 2 years ago

x-test syntax (x$foo = xyes/xno) is used to circumvent the fact that
shell variables are substituted and not just defining an argument, so
that $foo doesn't expand to no argument at all.

But "" in posix shell syntax is considered as an argument by itself, so
using quotes around the variable removes this issue. Thus, x-test is
useless in the case where it has been removed in this patch.

Rémi Denis-Courmont authored 2 years ago and Hugo Beauzée-Luyssen committed 2 years ago

Fixes Debian #842513.

Rémi Denis-Courmont authored 2 years ago and Hugo Beauzée-Luyssen committed 2 years ago

This was added ostensibly to fix compilation of the run-time AltiVec
test which was removed in bc146294.
Unfortunately, it causes the compiler to emit AltiVec instructions,
such that the executable crashes if AltiVec is not available.

Regression from e48d6195.

Rémi Denis-Courmont authored 2 years ago and Hugo Beauzée-Luyssen committed 2 years ago

Get the protocol definition for wl_output version 4.

Alaric Senat authored 2 years ago and Jean-Baptiste Kempf committed 2 years ago

This version gives access to `UpnpInit2` for both IPv6 and IPv4.
`UpnpInit` is deprecated since 1.6 and less safe than `UpnpInit2`.

Libupnp 1.8.3 has been out since 2017 and has been widely adopted in
most linux distributions now (available on debian since version 10).
Dropping support for lower versions will allow us to completely remove
`UpnpInit` from the codebase and simplify a lot the netintf selection
code.

Steve Lhomme authored 2 years ago and Hugo Beauzée-Luyssen committed 2 years ago

CFLAGS is added to the linker flags and newer LLVM don't like that.
CPPFLAGS is used during C compilation and C++ but not added to LDFLAGS.

Steve Lhomme authored 2 years ago and Hugo Beauzée-Luyssen committed 2 years ago

newer clang reports that it ignores the command on each C++ file compiled.
In the end the static C++ compiler is used on Windows anyway.

Steve Lhomme authored 3 years ago and Hugo Beauzée-Luyssen committed 2 years ago

This avoids potential compiler optimizations when casting to void** when using
IID_PPV_ARGS or WRL.

If the option is not supported we fail the configure as many important C++
modules may not work as expected due to pointer aliasing. In practice this
should never happen as GCC for mingw-w64 and Clang support this correctly.

Steve Lhomme authored 3 years ago and Hugo Beauzée-Luyssen committed 3 years ago

Maybe it was OK to keep it in 3.0 but in 4.0 we can't expect to reuse ancient
folders, just to save a luac rebuild.

Also add a nice message when configuring.

Detection only worked on Linux, but more importantly, this flag fell out of
use with 8512cab6.

This flag fell out of use with 8512cab6.

Same problem as 0c482e07.

This was added over a decade ago, but ...

This is necessary for Linux-specific getauxval() and associated flags.
In this case, VLC needs AT_HWCAP (and probably AT_HWCAP2 going forward)
to detect CPU features on most architectures.

Rémi Denis-Courmont authored 3 years ago and Hugo Beauzée-Luyssen committed 3 years ago

This requires MacOS 10.5 or less, which was dropped in VLC 2.1.0.

Hugo Beauzée-Luyssen authored 3 years ago and Jean-Baptiste Kempf committed 3 years ago

Fix #26491

This was superseded by fc8208ec.

Brad Smith authored 3 years ago and Rémi Denis-Courmont committed 3 years ago

Fixes #26572

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

This follows the established cargo cult of not assuming that the
toolchain supports SIMD.

Alexandre Janniaux authored 3 years ago and Jean-Baptiste Kempf committed 3 years ago

Allow the configure script to substitute the theme used in the
documentation for Awesome doxygen css from the CI script.

The theme won't be mandatory, but we can change it and inject it for the
production documentation online.

Steve Lhomme authored 3 years ago and Hugo Beauzée-Luyssen committed 3 years ago

Otherwise it won't compile compatible code.

If protoc is not there we check the version of protobuf we expect so we get the
proper error messages on what's really missing.

Steve Lhomme authored 3 years ago and Hugo Beauzée-Luyssen committed 3 years ago

Similar to how we force detection of luac there.

We might be using
AC_CHECK_TOOL(PROTOC, protoc, no, [${CONTRIB_DIR}/../bin$PATH_SEPARATOR$PATH])

Which works, but it doesn't keep the full path, so if the PATH is not set in
the environment when using HOST-protoc it doesn't find it. So we either have to
force everyone to add a new item in their PATH or just use the transparent way
that luac is using.

Steve Lhomme authored 4 years ago and Hugo Beauzée-Luyssen committed 3 years ago

Similar to how we use $host-luac that we build natively.