Incoming build fails on Windows 7 with i686-pc-mingw32

[thadguidry]

-I/home/Thad/rust/src/libuv/include/uv-private  -c -o /home/Thad/rust/src/libuv/
src/win/timer.o /home/Thad/rust/src/libuv/src/win/timer.c
gcc -I/home/Thad/rust/src/libuv/include -I/home/Thad/rust/src/libuv/include/uv-p
rivate -g --std=gnu89 -D_WIN32_WINNT=0x0600 -I/home/Thad/rust/src/libuv/include
-I/home/Thad/rust/src/libuv/include/uv-private  -c -o /home/Thad/rust/src/libuv/
src/win/tty.o /home/Thad/rust/src/libuv/src/win/tty.c
gcc -I/home/Thad/rust/src/libuv/include -I/home/Thad/rust/src/libuv/include/uv-p
rivate -g --std=gnu89 -D_WIN32_WINNT=0x0600 -I/home/Thad/rust/src/libuv/include
-I/home/Thad/rust/src/libuv/include/uv-private  -c -o /home/Thad/rust/src/libuv/
src/win/udp.o /home/Thad/rust/src/libuv/src/win/udp.c
gcc -I/home/Thad/rust/src/libuv/include -I/home/Thad/rust/src/libuv/include/uv-p
rivate -g --std=gnu89 -D_WIN32_WINNT=0x0600 -I/home/Thad/rust/src/libuv/include
-I/home/Thad/rust/src/libuv/include/uv-private  -c -o /home/Thad/rust/src/libuv/
src/win/util.o /home/Thad/rust/src/libuv/src/win/util.c
gcc -I/home/Thad/rust/src/libuv/include -I/home/Thad/rust/src/libuv/include/uv-p
rivate -g --std=gnu89 -D_WIN32_WINNT=0x0600 -I/home/Thad/rust/src/libuv/include
-I/home/Thad/rust/src/libuv/include/uv-private  -c -o /home/Thad/rust/src/libuv/
src/win/winapi.o /home/Thad/rust/src/libuv/src/win/winapi.c
gcc -I/home/Thad/rust/src/libuv/include -I/home/Thad/rust/src/libuv/include/uv-p
rivate -g --std=gnu89 -D_WIN32_WINNT=0x0600 -I/home/Thad/rust/src/libuv/include
-I/home/Thad/rust/src/libuv/include/uv-private  -c -o /home/Thad/rust/src/libuv/
src/win/winsock.o /home/Thad/rust/src/libuv/src/win/winsock.c
gcc -I/home/Thad/rust/src/libuv/include -I/home/Thad/rust/src/libuv/include/uv-p
rivate -g --std=gnu89 -D_WIN32_WINNT=0x0600 -c /home/Thad/rust/src/libuv/src/fs-
poll.c -o src/fs-poll.o
gcc -I/home/Thad/rust/src/libuv/include -I/home/Thad/rust/src/libuv/include/uv-p
rivate -g --std=gnu89 -D_WIN32_WINNT=0x0600 -c /home/Thad/rust/src/libuv/src/ine
t.c -o src/inet.o
gcc -I/home/Thad/rust/src/libuv/include -I/home/Thad/rust/src/libuv/include/uv-p
rivate -g --std=gnu89 -D_WIN32_WINNT=0x0600 -c /home/Thad/rust/src/libuv/src/uv-
common.c -o src/uv-common.o
ar rcs libuv.a /home/Thad/rust/src/libuv/src/win/async.o /home/Thad/rust/src/lib
uv/src/win/core.o /home/Thad/rust/src/libuv/src/win/dl.o /home/Thad/rust/src/lib
uv/src/win/error.o /home/Thad/rust/src/libuv/src/win/fs-event.o /home/Thad/rust/
src/libuv/src/win/fs.o /home/Thad/rust/src/libuv/src/win/getaddrinfo.o /home/Tha
d/rust/src/libuv/src/win/handle.o /home/Thad/rust/src/libuv/src/win/loop-watcher
.o /home/Thad/rust/src/libuv/src/win/pipe.o /home/Thad/rust/src/libuv/src/win/po
ll.o /home/Thad/rust/src/libuv/src/win/process-stdio.o /home/Thad/rust/src/libuv
/src/win/process.o /home/Thad/rust/src/libuv/src/win/req.o /home/Thad/rust/src/l
ibuv/src/win/signal.o /home/Thad/rust/src/libuv/src/win/stream.o /home/Thad/rust
/src/libuv/src/win/tcp.o /home/Thad/rust/src/libuv/src/win/thread.o /home/Thad/r
ust/src/libuv/src/win/threadpool.o /home/Thad/rust/src/libuv/src/win/timer.o /ho
me/Thad/rust/src/libuv/src/win/tty.o /home/Thad/rust/src/libuv/src/win/udp.o /ho
me/Thad/rust/src/libuv/src/win/util.o /home/Thad/rust/src/libuv/src/win/winapi.o
 /home/Thad/rust/src/libuv/src/win/winsock.o src/fs-poll.o src/inet.o src/uv-com
mon.o
make[2]: Leaving directory `/home/Thad/rust/rt/i686-pc-mingw32/libuv'
make[1]: Leaving directory `/home/Thad/rust/src/libuv'
link: rt/i686-pc-mingw32/rustrt.dll
rt/rustrt.mingw32.def:2: Warning: path components stripped from LIBRARY, 'rt/rus
trt'
cp: i686-pc-mingw32/stage0/bin/rustc/i686-pc-mingw32/bin/rustrt.dll
compile: rt/i686-pc-mingw32/arch/i386/morestack.o
link: rt/i686-pc-mingw32/arch/i386/libmorestack.a
cp: i686-pc-mingw32/stage0/bin/rustc/i686-pc-mingw32/bin/libmorestack.a
compile_and_link: i686-pc-mingw32/stage0/bin/rustc/i686-pc-mingw32/bin/core.dll
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\os.rs:34:4: 34:11 warning: unused i
mport
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\os.rs:34 use option;
                                                          ^~~~~~~
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\os.rs:174:16: 174:52 warning: unuse
d import
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\os.rs:174             use libc::typ
es::os::arch::extra::LPTCH;
                                                                       ^~~~~~~~~

C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\os.rs:707:16: 707:70 warning: unuse
d import
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\os.rs:707 use libc::typ
es::os::arch::extra::{LPCTSTR, HANDLE, BOOL};
^~~~~~~~~

C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\flate.rs:19:4: 19:8 warning: unused
 import
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\flate.rs:19 use ptr;
                                                             ^~~~
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\cast.rs:13:4: 13:8 warning: unused
import
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\cast.rs:13 use sys;
                                                            ^~~~
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\cast.rs:14:4: 14:13 warning: unused
 import
C:\MinGW\msys\1.0\home\Thad\rust\src\libcore\cast.rs:14 use unstable;
                                                            ^~~~~~~~~
compile_and_link: i686-pc-mingw32/stage0/bin/rustc/i686-pc-mingw32/bin/std.dll
C:\MinGW\msys\1.0\home\Thad\rust\src\libstd\ebml.rs:630:20: 630:38 warning: comp
arison is useless due to type limits
C:\MinGW\msys\1.0\home\Thad\rust\src\libstd\ebml.rs:630             assert!(v <=
 0xFFFF_FFFF_u);
                                                                            ^~~~

:59:4: 70:5 note: in expansion of assert!
C:\MinGW\msys\1.0\home\Thad\rust\src\libstd\ebml.rs:630:12: 630:40 note: expansi
on site
compile_and_link: i686-pc-mingw32/stage0/bin/rustc/i686-pc-mingw32/bin/syntax.dl
l
C:\MinGW\msys\1.0\home\Thad\rust\src\libsyntax\parse\parser.rs:941:37: 941:40 wa
rning: unused variable: id
C:\MinGW\msys\1.0\home\Thad\rust\src\libsyntax\parse\parser.rs:941
token::IDENT(id,_) => {

                    ^~~

C:\MinGW\msys\1.0\home\Thad\rust\src\libsyntax\parse\parser.rs:3731:16: 3731:31
warning: unused variable: initial_attrs
C:\MinGW\msys\1.0\home\Thad\rust\src\libsyntax\parse\parser.rs:3731 let
mut initial_attrs = attrs_remaining;

^~~~~~~~~~~~~~~

compile: rustllvm/i686-pc-mingw32/RustWrapper.o
cc1plus.exe: warnings being treated as errors
In file included from C:/MinGW/msys/1.0/home/Thad/rust/src/rustllvm/RustWrapper.
cpp:43:0:
C:/MinGW/msys/1.0/home/Thad/rust/src/llvm/include/llvm/ExecutionEngine/JITMemory
Manager.h: In member function 'virtual bool llvm::JITMemoryManager::CheckInvaria
nts(std::string&)':
C:/MinGW/msys/1.0/home/Thad/rust/src/llvm/include/llvm/ExecutionEngine/JITMemory
Manager.h:139:3: error: visibility attribute not supported in this configuration
; ignored
make: *** [rustllvm/i686-pc-mingw32/RustWrapper.o] Error 1

Thad@Thad-Windows ~/rust
$

Using Mingw and GCC 4.5.2

[jdm]

To make it clear, this is the problem:

compile: rustllvm/i686-pc-mingw32/RustWrapper.o
cc1plus.exe: warnings being treated as errors
In file included from C:/MinGW/msys/1.0/home/Thad/rust/src/rustllvm/RustWrapper.
cpp:43:0:
C:/MinGW/msys/1.0/home/Thad/rust/src/llvm/include/llvm/ExecutionEngine/JITMemory
Manager.h: In member function 'virtual bool llvm::JITMemoryManager::CheckInvaria
nts(std::string&)':
C:/MinGW/msys/1.0/home/Thad/rust/src/llvm/include/llvm/ExecutionEngine/JITMemory
Manager.h:139:3: error: visibility attribute not supported in this configuration
; ignored
make: *** [rustllvm/i686-pc-mingw32/RustWrapper.o] Error 1

An easy workaround would be to turn off building RustWrapper.cpp with -Werror.

[jld]

Or use -Wno-error=attributes, which should remove the errorness of just that warning.

(Disappointingly, -Wattributes seems to be undocumented — even by cc1's --help option — and I had to source-dive GCC to find where the warning is being emitted to discover it.)

[graydon]

Visiting for triage. What's going on here? Our buildhosts build i686 on windows. ccc version drift?

[thadguidry]

This is resolved now for me on master. Please close.

[graydon]

Great, thanks for the update.