@file are supported by gcc since gcc 7 and by clang since clang 3.x,
which removes the need for linker script to list input files.
We cannot directly use @file from the compiler driver (it would expand
to a large number of arguments and hit the linker limit) so pass
-Wl,@FILE instead, which is supported since binutils 2.17.
As a side effect this removes the LTO dependency from the check.
Differential Revision: https://phabricator.services.mozilla.com/D207839
There was a syntax error introduced in bug 1796380 that removed the flag
entirely. In practice, it didn't make a difference for us because clang
now defaults to PIE, but it can make a difference in environments where
the compiler is not using such a default.
However, on both Darwin and WASI, clang complains the flag is unused, so
we have to do something about it.
Differential Revision: https://phabricator.services.mozilla.com/D180279
At the same time, fix the sole use of the tool to actually use what's
found by configure, and only enable that configure check when building
Spidermonkey standalone.
And while we're here, add llvm-install-name-tool to the list.
Differential Revision: https://phabricator.services.mozilla.com/D178749
Nothing in the build system is using it anymore. It is still used on some
taskcluster tasks, but those are outside the build system.
Differential Revision: https://phabricator.services.mozilla.com/D178748
For a few NDK releases now, the situation has been simplified wrt
headers and libraries, and while we're currently still using things here
and there because we never changed our ways, we can simplify things a
lot by using the new simplified things. This involves:
- Using a --target that contains the Android version, making clang set
__ANDROID_API__ itself, and makes it look in $sysroot/usr/lib/$target/$ver
when linking.
- Using the sysroot that is under toolchains/llvm/prebuilt/*.
- Removing the hacks around libstdc++/libc++.
This ends up emptying stlport compiler flags, which allows to remove a
bunch of things.
Differential Revision: https://phabricator.services.mozilla.com/D172039
For a few NDK releases now, the situation has been simplified wrt
headers and libraries, and while we're currently still using things here
and there because we never changed our ways, we can simplify things a
lot by using the new simplified things. This involves:
- Using a --target that contains the Android version, making clang set
__ANDROID_API__ itself, and makes it look in $sysroot/usr/lib/$target/$ver
when linking.
- Using the sysroot that is under toolchains/llvm/prebuilt/*.
- Removing the hacks around libstdc++/libc++.
This ends up emptying stlport compiler flags, which allows to remove a
bunch of things.
Differential Revision: https://phabricator.services.mozilla.com/D172039
While we're here, make the setup more consistent across host/target
c/c++, and remove the C compiler warning flags from the C linker flags,
where they are irrelevant.
Differential Revision: https://phabricator.services.mozilla.com/D159358
MozillaBuild 3.4's kernel name was `MINGW32_NT-6.2`, but the new
MozillaBuild's kernel name looks like `MSYS_NT-10.0-19044`.
Update existing first-party detection code to properly handle the modern
MSYS "kernel name" format.
Differential Revision: https://phabricator.services.mozilla.com/D140096
- AC_HAVE_FUNCS is an alias to AC_CHECK_FUNCS, so it is covered.
- Nothing uses HAVE___CXA_DEMANGLE, so we don't explictly set it,
although we do need the result of whether __cxa_demangle is supported.
- No moz.build uses MOZ_DEMANGLE_SYMBOLS, so we only `set_define` it.
- We leave dladdr in old-configure because it needs to move along other
dl* things.
- The hotfix for AC_CHECK_FUNC is however not needed for dladdr, so we
remove it.
- We replace the forced HAVE_LOCALECONV on Windows with a check shared
with all platforms.
Differential Revision: https://phabricator.services.mozilla.com/D134858
