This makes stdlib.h and stdio.h functions available in the std
namespace for C++.
libstdc++v3's link tests can fail if you don't have an up-to-date
build directory, for example:
1. Have libc with missing _Exit symbol because you haven't done
a build since that was added.
2. Run toolchain rebuild. libstdc++v3's configure script will
realize that it can do link tests in general but will fail
later on when it tries to link a program that tests for _Exit.
Even though this is a toolchain patch this does not necessarily
require rebuilding the toolchain right away. This is only required
once we start using any of these new members in the std namespace,
e.g. for ports.
This is used for `sys.platform`, so it's important to get it right and
ideally never change it again. When not cross-compiling this would
append the `uname -r` version number, so let's explicitly override the
generated value and set it to `serenityos`. Various other systems do
this as well.
This makes the following work:
>>> import webbrowser
>>> webbrowser.open("http://serenityos.org")
As well as this well-known easter egg:
>>> import antigravity
Pretty cool! :^)
This updates the way we verify signatures for the gcc
port because we were previously downloading the keychain
from the mirror which defeats the point of doing signature
checks.
We don't support hashes from external files (anymore), downloading
another file for integrity validation is pointless. As as result, these
two ports would refuse to build as their hashes were missing.
Fixes#6645.
Without a SONAME gcc will put the whole library path into executables
which link against these libraries:
$ readelf -d Root/usr/local/games/openttd
Dynamic section at offset 0xf0747c contains 32 entries:
Tag Type Name/Value
0x00000001 (NEEDED) [libgcc_s.so]
0x00000001 (NEEDED) [/serenity/Build/i686/Root/usr/local/lib/libpng.so]
0x00000001 (NEEDED) [/serenity/Build/i686/Root/usr/local/lib/libz.so]
0x00000001 (NEEDED) [/serenity/Build/i686/Root/usr/local/lib/liblzma.so]
0x00000001 (NEEDED) [libSDL2-2.0.so.1]
0x00000001 (NEEDED) [libicui18n.so.69]
0x00000001 (NEEDED) [libicuuc.so.69]
0x00000001 (NEEDED) [libicudata.so.69]
0x00000001 (NEEDED) [libpthread.so]
0x00000001 (NEEDED) [libm.so]
0x00000001 (NEEDED) [libc.so]
This causes the executable to fail because the dynamic linker
tries to find the library in the incorrect path.
