Rust doesn't build on Ubuntu 12.04

[brson]

It doesn't have g++ > 4.7, which LLVM needs. This is apparently breaking http://rust-ci.org/.

[brson]

Instructions for installing newer g++ on Ubuntu 12.04 http://charette.no-ip.com:81/programming/2011-12-24_GCCv47/

[brson]

There may not be much we can do here besides pointing to the manual g++ install instructions, and asking Rust CI to either do that or upgrade Ubuntu.

[chris-morgan]

Rust CI operates on Travis CI servers, which use Ubuntu 12.04. The actual problem there is more that the PPA (also by hansjorg) won’t build for precise. If it were built there, then Rust CI would cease to have problems in that department.

[steveklabnik]

Can this be closed? This seems like a Rust-ci specific issue, and most people aren't even using the PPA anyway.

[aidanhs]

Instead of using gcc I decided to try clang:

/space/mine/rust/rust $ ./configure --prefix=$(pwd)/../dist --enable-clang && make
[...]
make: llvm
make[1]: Entering directory `/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm'
llvm[1]: Constructing LLVMBuild project information.
make[1]: Leaving directory `/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm'
make[1]: Entering directory `/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm'
make[2]: Entering directory `/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support'
llvm[2]: Compiling APFloat.cpp for Release+Asserts build
In file included from /space/mine/rust/rust/src/llvm/lib/Support/APFloat.cpp:15:
In file included from /space/mine/rust/rust/src/llvm/include/llvm/ADT/APFloat.h:20:
In file included from /space/mine/rust/rust/src/llvm/include/llvm/ADT/APInt.h:19:
In file included from /space/mine/rust/rust/src/llvm/include/llvm/ADT/ArrayRef.h:14:
/space/mine/rust/rust/src/llvm/include/llvm/ADT/STLExtras.h:21:10: fatal error: 'cstddef' file not found
#include <cstddef> // for std::size_t
         ^
1 error generated.
[...]
/space/mine/rust/rust $ locate cstddef
/usr/include/c++/4.6/cstddef
/space/mine/rust/rust $ clang --version
Ubuntu clang version 3.4-1ubuntu3~precise1 (tags/RELEASE_34/final) (based on LLVM 3.4)
Target: x86_64-pc-linux-gnu
Thread model: posix

http://stackoverflow.com/questions/20587228/clang-error-stddef-file-not-found looks similar, but is about 13.10 (and isn't about cstddef).

With verbose mode I can see this is the command:

if  clang++ -Qunused-arguments -I/space/mine/rust/rust/src/llvm/include -I/space/mine/rust/rust/src/llvm/lib/Support -I/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/include -I/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support  -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -O3 -fomit-frame-pointer -stdlib=libc++ -std=c++11 -fvisibility-inlines-hidden -fno-exceptions -fno-rtti -fPIC -ffunction-sections -fdata-sections -Wcast-qual    -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcovered-switch-default -Wno-uninitialized -Wno-missing-field-initializers -c -MMD -MP -MF "/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d.tmp" -MT "/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.o" -MT "/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d" /space/mine/rust/rust/src/llvm/lib/Support/APFloat.cpp -o /space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.o ; \
                then /bin/mv -f "/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d.tmp" "/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d"; else /bin/rm "/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d.tmp"; exit 1; fi

Any thoughts?

Edit: or is there any significant environment variable of the form C_INCLUDE_* ?

[aidanhs]

Got time to look at this again now.

/space/mine/rust/rust $ clang++ -Qunused-arguments -I/space/mine/rust/rust/src/llvm/include -I/space/mine/rust/rust/src/llvm/lib/Support -I/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/include -I/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support  -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -O3 -fomit-frame-pointer -stdlib=libc++ -std=c++11 -fvisibility-inlines-hidden -fno-exceptions -fno-rtti -fPIC -ffunction-sections -fdata-sections -Wcast-qual    -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcovered-switch-default -Wno-uninitialized -Wno-missing-field-initializers -c -MMD -MP -MF "/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d.tmp" -MT "/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.o" -MT "/space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d" /space/mine/rust/rust/src/llvm/lib/Support/APFloat.cpp -o /space/mine/rust/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.o
In file included from /space/mine/rust/rust/src/llvm/lib/Support/APFloat.cpp:15:
In file included from /space/mine/rust/rust/src/llvm/include/llvm/ADT/APFloat.h:20:
In file included from /space/mine/rust/rust/src/llvm/include/llvm/ADT/APInt.h:19:
In file included from /space/mine/rust/rust/src/llvm/include/llvm/ADT/ArrayRef.h:14:
/space/mine/rust/rust/src/llvm/include/llvm/ADT/STLExtras.h:21:10: fatal error: 'cstddef' file not found
#include <cstddef> // for std::size_t
         ^
1 error generated.
/space/mine/rust/rust $ cat xx.cpp
#include <cstddef>
int main() {
        return 0;
}
/space/mine/rust/rust $ clang++ xx.cpp
/space/mine/rust/rust $ ./a.out && echo $?
0

So an arg rust gives to clang++ is hiding cstddef?

[aidanhs]

"It doesn't have g++ > 4.7, which LLVM needs."

Right, just actually read the issue. So this is a lost cause I guess :(

Edit: I'm just going to install ppa:ubuntu-toolchain-r, so problem solved from my point of view.

[nyx]

FWIW I just ran into this issue on a new Ubuntu 14.04.1 LTS desktop installation. I configured HEAD (cc19e33) rust using --enable-clang, attempted to build, and upon failure iteratively installed llvm clang build-essential and g++ (version 4.8) when attempting to build I see the cstddef header file missing error as well even now.

Hi. I'm having this issue as well, on Linux Manjaro (not ubuntu) with (newer than 4.7) gcc == 4.9.2
There are two results when searching for cstddef:

/usr/include/boost/compatibility/cpp_c_headers/cstddef
/usr/include/c++/4.9.2/cstddef

This is my gcc version 4.9.2:

gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.9.2/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /build/gcc/src/gcc-4.9-20141224/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-gnu-unique-object --enable-linker-build-id --enable-cloog-backend=isl --enable-lto --enable-plugin --enable-install-libiberty --with-linker-hash-style=gnu --disable-multilib --disable-werror --enable-checking=release
Thread model: posix
gcc version 4.9.2 20141224 (prerelease) (GCC) 

Trying to compile latest rust from master with something like this:

$ ./configure --prefix=/usr --disable-rpath --disable-verify-install --disable-debug --enable-manage-submodules --enable-clang --enable-ccache --enable-dist-host-only 
$ make -j1 all

...
make[2]: Entering directory '/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support'
/home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/autoconf/mkinstalldirs /home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts > /dev/null
/usr/bin/date > /home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/.dir
llvm[2]: Compiling APFloat.cpp for Release+Asserts build
if  ccache clang++ -Qunused-arguments -I/home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/include -I/home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/lib/Support -I/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/include -I/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support  -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -O3 -fomit-frame-pointer -stdlib=libc++ -std=c++11 -fvisibility-inlines-hidden -fno-exceptions -fno-rtti -fPIC -ffunction-sections -fdata-sections -Wcast-qual -march=native -O2 -pipe -fstack-protector-strong --param=ssp-buffer-size=4 -D_FORTIFY_SOURCE=2 -Wno-trigraphs   -D_FORTIFY_SOURCE=2 -D_FORTIFY_SOURCE=2 -D_FORTIFY_SOURCE=2  -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcovered-switch-default -Wno-uninitialized -Wno-missing-field-initializers -c -MMD -MP -MF "/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d.tmp" -MT "/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.o" -MT "/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d" /home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/lib/Support/APFloat.cpp -o /home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.o ; \
        then /usr/bin/mv -f "/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d.tmp" "/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d"; else /usr/bin/rm "/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d.tmp"; exit 1; fi
In file included from /home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/lib/Support/APFloat.cpp:15:
In file included from /home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/include/llvm/ADT/APFloat.h:20:
In file included from /home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/include/llvm/ADT/APInt.h:19:
In file included from /home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/include/llvm/ADT/ArrayRef.h:14:
/home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/include/llvm/ADT/STLExtras.h:21:10: fatal error: 
      'cstddef' file not found
#include <cstddef> // for std::size_t
         ^
1 error generated.
/usr/bin/rm: cannot remove ‘/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.d.tmp’: No such file or directory
/home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/Makefile.rules:1514: recipe for target '/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.o' failed
make[2]: *** [/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support/Release+Asserts/APFloat.o] Error 1
make[2]: Leaving directory '/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/lib/Support'
/home/emacs/build/rust-git/makepkg/rust-git/src/rust/src/llvm/Makefile.rules:873: recipe for target 'all' failed
make[1]: *** [all] Error 1
make[1]: Leaving directory '/home/emacs/build/rust-git/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm'
/tmp/makepkg/rust-git/src/rust/mk/llvm.mk:60: recipe for target '/tmp/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/Release+Asserts/bin/llvm-config' failed
make: *** [/tmp/makepkg/rust-git/src/rust/x86_64-unknown-linux-gnu/llvm/Release+Asserts/bin/llvm-config] Error 2
==> ERROR: A failure occurred in build().
    Aborting...

real    1m7.847s
user    0m42.023s
sys 0m10.023s

I'll let you know if I fix it.

tl;dr: fixed by passing --disable-libcpp to rust's ./configure

--------longer read:
found the culprit, turns out that by having -stdlib=libc++ parameter passed to clang++ it will fail as mentioned above with the cstddef error and simply removing it works. But to properly remove it I have to either not specify --enable-libcpp (by default it's NO) or specify --disable-libcpp to the ./configure script of llvm (not of rust). This translates to having to pass --disable-libcpp to the rust ./configure.

(tested to work as specified)

I also found this text, afterwards, to be related (from file: GettingStarted.rst):

When you build Clang, you will need to give *it* access to modern C++11
standard library in order to use it as your new host in part of a bootstrap.
There are two easy ways to do this, either build (and install) libc++ along
with Clang and then use it with the ``-stdlib=libc++`` compile and link flag,
or install Clang into the same prefix (``$HOME/toolchains`` above) as GCC.
Clang will look within its own prefix for libstdc++ and use it if found. You
can also add an explicit prefix for Clang to look in for a GCC toolchain with
the ``--gcc-toolchain=/opt/my/gcc/prefix`` flag, passing it to both compile and
link commands when using your just-built-Clang to bootstrap.

[steveklabnik]

It seems like this is taken care of now, or at least, as much as it's going to be.