This patch will support all of `-std:`, `-std=`, and `-Xclang -std=`.
This patch will also a bit faster because the current code will call `sed` for
each argument.
Differential Revision: https://phabricator.services.mozilla.com/D63472
--HG--
extra : moz-landing-system : lando
clang-plugin.dll links against clang.exe so they both need to use the same C++ standard. This is achieved by having build/clang-plugin/moz.build use the flags from llvm-config. However, llvm-config uses the `-std:c++14` format, so our flags end up looking like:
`-Xclang -std=c++17 ... -std:c++14`
and apparently the former wins out in clang's option plumbing, so the compiler still thinks we requested c++17.
This patch makes clang-plugin use the `-Xclang -std=` format so that the override happens as desired.
Differential Revision: https://phabricator.services.mozilla.com/D62271
--HG--
extra : moz-landing-system : lando
This is just drive-by, but it confused me. We require at least clang 4 to build
nowadays.
Differential Revision: https://phabricator.services.mozilla.com/D50646
--HG--
extra : moz-landing-system : lando
We want our clang bootstrap to use the GCC headers we're building with,
not whatever sysroot it happens to find on the server we're building on.
The -gcc-toolchain argument we specify when building clang will also be
picked up by llvm-config, so we need to strip it out when building the
plugin. Otherwise, we will get peculiar failures about not being able to
find C++ header files.
Differential Revision: https://phabricator.services.mozilla.com/D22880
--HG--
extra : moz-landing-system : lando
We want our clang bootstrap to use the GCC headers we're building with,
not whatever sysroot it happens to find on the server we're building on.
The -gcc-toolchain argument we specify when building clang will also be
picked up by llvm-config, so we need to strip it out when building the
plugin. Otherwise, we will get peculiar failures about not being able to
find C++ header files.
Depends on D22879
Differential Revision: https://phabricator.services.mozilla.com/D22880
--HG--
extra : moz-landing-system : lando
This ensures that we correctly link against /usr/lib/libc++.1.dylib.
With this flag left in LDFLAGS, the linker would find libc++.1.dylib in
clang/lib, which would cause us to link against @rpath/libc++.1.dylib.
This ensures that we correctly link against /usr/lib/libc++.1.dylib.
With this flag left in LDFLAGS, the linker would find libc++.1.dylib in
clang/lib, which would cause us to link against @rpath/libc++.1.dylib.
The check is for the clang plugin, which is a host library. It is especially
important to use the host compiler for this check on OSX-on-Linux cross builds.
Right now, if the LLVMCONFIG variable is not set in the .mozconfig, we
first look for the system default llvm-config and only then we ask clang
itself, which breaks building with the clang plugin if you make $CC and
$CXX point to a non-default clang binary. This patch fixes the issue
by reversing the search order.
--HG--
extra : rebase_source : 23ab716f4e220097e4c31092475dba769f4e7dfc
Mike Hommey
Andi-Bogdan Postelnicu
Andreea Pavel
Masatoshi Kimura
David Major
Emilio Cobos Álvarez
Nathan Froyd
Gurzau Raul
Bill McCloskey
Chris Manchester
Ehsan Akhgari
Iris Hsiao
Ting-Yu Chou
Tom Schuster
Michael Layzell