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tpoechtrager / wclang

Cross compile source code easily for Windows with clang on Linux/Unix
GNU General Public License v2.0
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Unresolved Dependencies #22

Open baszalmstra opened 8 years ago

baszalmstra commented 8 years ago

Everytime I try to build something simple I always run into this issue:

root@4bb1c579744e:/usr/src/cmake-hello-world# w64-clang++ HelloWorld.cpp Hello/Speaker.cpp -ohello_world.exe -IHello
/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-ld: cannot find crt2.o: No such file or directory
/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-ld: cannot find crtbegin.o: No such file or directory
/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-ld: cannot find -lstdc++
/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-ld: cannot find -lgcc_s
/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-ld: cannot find -lgcc
/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-ld: cannot find -lgcc_s
/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-ld: cannot find -lgcc
/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-ld: cannot find crtend.o: No such file or directory
clang: error: linker command failed with exit code 1 (use -v to see invocation)

When I add -wc-use-mingw-linker however I can compile without issues. I've followed some steps I found in issues here like setting the COMPILER_PATH, but it doesn't fix the problem. I'm using MXE (although it also happens without this), and clang 3.8.

Any help would be greatly appreciated!

tpoechtrager commented 8 years ago

(although it also happens without this)

What distribution are you on?

baszalmstra commented 8 years ago

Im on Ubuntu Xenial

tpoechtrager commented 8 years ago

This is a clang issue. Linking with -L /usr/lib/gcc/<arch>-w64-mingw32/5.3-<posix|win32> (i.e.: w32-clang test.c -L /usr/lib/gcc/i686-w64-mingw32/5.3-posix) fixes the linker errors.

I will try to integrate this into wclang within the next few days.

baszalmstra commented 8 years ago

Awesome thanks!

ArcaneEngineer commented 8 years ago

Getting similar under Debian 8. However, for me it is:

/usr/bin/i686-w64-mingw32-ld: cannot find -lgcc
/usr/bin/i686-w64-mingw32-ld: cannot find -lgcc_eh
/usr/bin/i686-w64-mingw32-ld: cannot find -lgcc
/usr/bin/i686-w64-mingw32-ld: cannot find -lgcc_eh

Your suggestion helped me, too - thanks for that.

baszalmstra commented 8 years ago

Mm, with the new version I still have this issue. I've got a docker image that reproduces this issue. Maybe it's something I'm doing wrong with the configuration. 

FROM ubuntu:xenial

# Install dependencies for MXE + Clang3.8
RUN apt-get update && apt-get -y install \
  autoconf automake autopoint bash bison bzip2 flex gettext\
  git g++ gperf intltool libffi-dev libgdk-pixbuf2.0-dev \
  libtool libltdl-dev libssl-dev libxml-parser-perl make \
  openssl p7zip-full patch perl pkg-config python ruby scons \
  sed unzip wget xz-utils g++-multilib libc6-dev-i386 libtool-bin \
  clang clang-3.8

# WINE is used as an emulator for try_run and tests with CMake.
RUN dpkg --add-architecture i386 && \
  apt-get update && \
  apt-get install -y wine
ENV WINEARCH win64
RUN wine hostname

# mxe master 2016-05-10
WORKDIR /usr/src
RUN git clone https://github.com/mxe/mxe.git && \
  cd mxe && \
  git checkout 41aa9fd5fcb482380a056939637b2f8c9fa83ec6
WORKDIR /usr/src/mxe
COPY settings.mk /usr/src/mxe/
RUN make gcc -j$(nproc)
ENV PATH ${PATH}:/usr/src/mxe/usr/bin

# Install cmake dependencies
RUN apt-get update && apt-get -y install \
    build-essential \
  git \
  wget curl \
  tar bzip2 gzip \
  zlib1g-dev libncurses5-dev libcurl4-openssl-dev \
  vim && \
    apt-get -y clean

# Build and install CMake from source.
WORKDIR /usr/src
RUN wget https://cmake.org/files/v3.4/cmake-3.4.3.tar.gz && \
    tar -xzvf cmake-3.4.3.tar.gz && \
    mkdir cmake-build && cd cmake-build && \
    /usr/src/cmake-3.4.3/bootstrap \
        --parallel=$(nproc) \
        --prefix=/usr && \
    make -j$(nproc) && \
    ./bin/cmake -DCMAKE_USE_SYSTEM_CURL:BOOL=ON \
        -DCMAKE_BUILD_TYPE:STRING=Release \
        -DCMAKE_USE_OPENSSL:BOOL=ON . && \
    make install && \
    cd .. && \
    rm -rf cmake*

# Install wclang 2016-05-10
RUN git clone https://github.com/tpoechtrager/wclang.git && \
  cd wclang && \
  git checkout 4758df6f62dfc382ae19da4178e046954a2a9855 && \
  cmake . && \
  make -j$(nproc) && \
  make install && \
  cd .. && \
  rm -rf wclang

I cloned this repository and ran:

w64-clang++ HelloWorld.cpp Hello/Speaker.cpp -ohello_world.exe -IHello -v

It results in:

clang version 3.8.0-2ubuntu3 (tags/RELEASE_380/final)
Target: x86_64-w64-windows-gnu
Thread model: posix
InstalledDir: /usr/bin
 "/usr/lib/llvm-3.8/bin/clang" -cc1 -triple x86_64-w64-windows-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name HelloWorld.cpp -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -momit-leaf-frame-pointer -v -dwarf-column-info -debugger-tuning=gdb -nostdsysteminc -nobuiltininc -resource-dir /usr/lib/llvm-3.8/bin/../lib/clang/3.8.0 -isystem /usr/bin/../lib/clang/3.8/include -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/4.9.3/include/c++ -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/4.9.3/include/c++/x86_64-w64-mingw32.static -I Hello -internal-isystem /usr/x86_64-w64-mingw32/include/c++ -internal-isystem /usr/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32 -internal-isystem /usr/x86_64-w64-mingw32/include/c++/backward -internal-isystem /usr/x86_64-w64-mingw32/include/c++/ -internal-isystem /usr/x86_64-w64-mingw32/include/c++//x86_64-w64-mingw32 -internal-isystem /usr/x86_64-w64-mingw32/include/c++//backward -internal-isystem /usr/include/c++/ -internal-isystem /usr/include/c++//x86_64-w64-mingw32 -internal-isystem /usr/include/c++//backward -internal-isystem include/c++ -internal-isystem include/c++/x86_64-w64-mingw32 -internal-isystem include/c++/backward -fdeprecated-macro -fdebug-compilation-dir/usr/src/cmake-hello-world -ferror-limit 19 -fmessage-length 80 -fno-use-cxa-atexit -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/HelloWorld-e12222.o -x c++ HelloWorld.cpp 
clang -cc1 version 3.8.0 based upon LLVM 3.8.0 default target x86_64-pc-linux-gnu
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/backward"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++//x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++//backward"
ignoring nonexistent directory "/usr/include/c++//x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/include/c++//backward"
ignoring nonexistent directory "include/c++"
ignoring nonexistent directory "include/c++/x86_64-w64-mingw32"
ignoring nonexistent directory "include/c++/backward"
#include "..." search starts here:
#include <...> search starts here:
 Hello
 /usr/bin/../lib/clang/3.8/include
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-
w64-mingw32.static/4.9.3/include/c++
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-
w64-mingw32.static/4.9.3/include/c++/x86_64-w64-mingw32.static
 /usr/include/c++
End of search list.
 "/usr/lib/llvm-3.8/bin/clang" -cc1 -triple x86_64-w64-windows-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name Speaker.cpp -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -momit-leaf-frame-pointer -v -dwarf-column-info -debugger-tuning=gdb -nostdsysteminc -nobuiltininc -resource-dir /usr/lib/llvm-3.8/bin/../lib/clang/3.8.0 -isystem /usr/bin/../lib/clang/3.8/include -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/4.9.3/include/c++ -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/4.9.3/include/c++/x86_64-w64-mingw32.static -I Hello -internal-isystem /usr/x86_64-w64-mingw32/include/c++ -internal-isystem /usr/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32 -internal-isystem /usr/x86_64-w64-mingw32/include/c++/backward -internal-isystem /usr/x86_64-w64-mingw32/include/c++/ -internal-isystem /usr/x86_64-w64-mingw32/include/c++//x86_64-w64-mingw32 -internal-isystem /usr/x86_64-w64-mingw32/include/c++//backward -internal-isystem /usr/include/c++/ -internal-isystem /usr/include/c++//x86_64-w64-mingw32 -internal-isystem /usr/include/c++//backward -internal-isystem include/c++ -internal-isystem include/c++/x86_64-w64-mingw32 -internal-isystem include/c++/backward -fdeprecated-macro -fdebug-compilation-dir /usr/src/cmake-hello-world -ferror-limit 19 -fmessage-length 80 -fno-use-cxa-atexit -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o /tmp/Speaker-1d92c1.o -x c++ Hello/Speaker.cpp
clang -cc1 version 3.8.0 based upon LLVM 3.8.0 default target x86_64-pc-linux-gnu
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/backward"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++//x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++//backward"
ignoring nonexistent directory "/usr/include/c++//x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/include/c++//backward"
ignoring nonexistent directory "include/c++"
ignoring nonexistent directory "include/c++/x86_64-w64-mingw32"
ignoring nonexistent directory "include/c++/backward"
#include "..." search starts here:
#include <...> search starts here:
 Hello
 /usr/bin/../lib/clang/3.8/include
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-
w64-mingw32.static/4.9.3/include/c++
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-
w64-mingw32.static/4.9.3/include/c++/x86_64-w64-mingw32.static
 /usr/include/c++
End of search list.
 "/usr/bin/x86_64-w64-mingw32.static-ld" -m i386pep -Bdynamic -o hello_world.exe crt2.o crtbegin.o -L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/4.9.3 -L/usr/x86_64-w64-mingw32/lib -L/usr/lib -L/usr/x86_64-w64-mingw32/sys-root/mingw/lib /tmp/HelloWorld-e12222.o /tmp/Speaker-1d92c1.o -lstdc++ -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt crtend.o
/usr/bin/x86_64-w64-mingw32.static-ld: cannot find crt2.o: No such file or directory
/usr/bin/x86_64-w64-mingw32.static-ld: cannot find crtbegin.o: No such file or directory
/usr/bin/x86_64-w64-mingw32.static-ld: cannot find -lgcc_s
/usr/bin/x86_64-w64-mingw32.static-ld: cannot find -lgcc_s
/usr/bin/x86_64-w64-mingw32.static-ld: cannot find crtend.o: No such file or directory
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Adding -wc-use-mingw-linker solves the issue. And I get a proper functioning exe.

Any clues on what I'm missing? Any help would be greatly appreciated.

tpoechtrager commented 8 years ago

I can't work around the cannot find crt2.o: No such file or directory issue. You must report it to the llvm people if you want to have it fixed. Or try Clang <= 3.6.

baszalmstra commented 8 years ago

Mm Ill do that.. But what about the gcc_s?

baszalmstra commented 8 years ago

For completeness, here is the output when I add -wc-use-mingw-linker:

w64-clang++ HelloWorld.cpp Hello/Speaker.cpp -IHello -ohello_world.exe -wc-use-mingw-linker -v
Using built-in specs.
COLLECT_GCC=/usr/bin/x86_64-w64-mingw32.static-g++
COLLECT_LTO_WRAPPER=/usr/src/mxe/usr/libexec/gcc/x86_64-w64-mingw32.static/5.3.0/lto-wrapper
Target: x86_64-w64-mingw32.static
Configured with: /usr/src/mxe/tmp-gcc-x86_64-w64-mingw32.static/gcc-5.3.0/configure --target=x86_64-w64-mingw32.static --build=x86_64-unknown-linux-gnu --prefix=/usr/src/mxe/usr --libdir=/usr/src/mxe/usr/lib --enable-languages=c,c++,objc,fortran --enable-version-specific-runtime-libs --with-gcc --with-gnu-ld --with-gnu-as --disable-nls --disable-shared --disable-multilib --without-x --disable-win32-registry --enable-threads=win32 --enable-libgomp --with-gmp=/usr/src/mxe/usr/x86_64-unknown-linux-gnu --with-isl=/usr/src/mxe/usr/x86_64-unknown-linux-gnu --with-mpc=/usr/src/mxe/usr/x86_64-unknown-linux-gnu --with-mpfr=/usr/src/mxe/usr/x86_64-unknown-linux-gnu --with-cloog=/usr/src/mxe/usr/x86_64-unknown-linux-gnu --with-as=/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-as --with-ld=/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-ld --with-nm=/usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-nm
Thread model: win32
gcc version 5.3.0 (GCC)
COLLECT_GCC_OPTIONS='-L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0' '-I' 'Hello' '-o' 'hello_world.exe' '-v' '-mtune=generic' '-march=x86-64'
 /usr/src/mxe/usr/libexec/gcc/x86_64-w64-mingw32.static/5.3.0/cc1plus -quiet -v -I Hello -U_REENTRANT HelloWorld.cpp -quiet -dumpbase HelloWorld.cpp -mtune=generic -march=x86-64 -auxbase HelloWorld -version -o /tmp/ccxagdVV.s
GNU C++ (GCC) version 5.3.0 (x86_64-w64-mingw32.static)
        compiled by GNU C version 5.3.1 20160413, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/sys-include"
#include "..." search starts here:
#include <...> search starts here:
 Hello
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++/x86_64-w64-mingw32.static
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++/backward
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include-fixed
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/include
End of search list.
GNU C++ (GCC) version 5.3.0 (x86_64-w64-mingw32.static)
        compiled by GNU C version 5.3.1 20160413, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 4526b21d75da18c16f53522d1e53202b
COLLECT_GCC_OPTIONS='-L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0' '-I' 'Hello' '-o' 'hello_world.exe' '-v' '-mtune=generic' '-march=x86-64'
 /usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-as -v -I Hello -o /tmp/ccwiuB4v.o /tmp/ccxagdVV.s
GNU assembler version 2.25.1 (x86_64-w64-mingw32.static) using BFD version (GNU Binutils) 2.25.1
COLLECT_GCC_OPTIONS='-L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0' '-I' 'Hello' '-o' 'hello_world.exe' '-v' '-mtune=generic' '-march=x86-64'
 /usr/src/mxe/usr/libexec/gcc/x86_64-w64-mingw32.static/5.3.0/cc1plus -quiet -v -I Hello -U_REENTRANT Hello/Speaker.cpp -quiet -dumpbase Speaker.cpp -mtune=generic -march=x86-64 -auxbase Speaker -version -o /tmp/ccxagdVV.s
GNU C++ (GCC) version 5.3.0 (x86_64-w64-mingw32.static)
        compiled by GNU C version 5.3.1 20160413, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/sys-include"
#include "..." search starts here:
#include <...> search starts here:
 Hello
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++/x86_64-w64-mingw32.static
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++/backward
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include-fixed
 /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/include
End of search list.
GNU C++ (GCC) version 5.3.0 (x86_64-w64-mingw32.static)
        compiled by GNU C version 5.3.1 20160413, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 4526b21d75da18c16f53522d1e53202b
COLLECT_GCC_OPTIONS='-L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0' '-I' 'Hello' '-o' 'hello_world.exe' '-v' '-mtune=generic' '-march=x86-64'
 /usr/src/mxe/usr/bin/x86_64-w64-mingw32.static-as -v -I Hello -o /tmp/ccKAUif7.o /tmp/ccxagdVV.s
GNU assembler version 2.25.1 (x86_64-w64-mingw32.static) using BFD version (GNU Binutils) 2.25.1
COMPILER_PATH=/usr/src/mxe/usr/libexec/gcc/x86_64-w64-mingw32.static/5.3.0/:/usr/src/mxe/usr/libexec/gcc/x86_64-w64-mingw32.static/5.3.0/:/usr/src/mxe/usr/libexec/gcc/x86_64-w64-mingw32.static/:/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/:/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/:/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/bin/
LIBRARY_PATH=/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/:/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/lib/../lib/:/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/lib/
COLLECT_GCC_OPTIONS='-L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0' '-I' 'Hello' '-o' 'hello_world.exe' '-v' '-mtune=generic' '-march=x86-64'
 /usr/src/mxe/usr/libexec/gcc/x86_64-w64-mingw32.static/5.3.0/collect2 -plugin /usr/src/mxe/usr/libexec/gcc/x86_64-w64-mingw32.static/5.3.0/liblto_plugin.so -plugin-opt=/usr/src/mxe/usr/libexec/gcc/x86_64-w64-mingw32.static/5.3.0/lto-wrapper -plugin-opt=-fresolution=/tmp/ccbsEewI.res -plugin-opt=-pass-through=-lmingw32 -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lmoldname -plugin-opt=-pass-through=-lmingwex -plugin-opt=-pass-through=-lmsvcrt -plugin-opt=-pass-through=-ladvapi32 -plugin-opt=-pass-through=-lshell32 -plugin-opt=-pass-through=-luser32 -plugin-opt=-pass-through=-lkernel32 -plugin-opt=-pass-through=-lmingw32 -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lmoldname -plugin-opt=-pass-through=-lmingwex -plugin-opt=-pass-through=-lmsvcrt -m i386pep -Bdynamic -o hello_world.exe /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/lib/../lib/crt2.o /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/crtbegin.o -L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0 -L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0 -L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/lib/../lib -L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/lib /tmp/ccwiuB4v.o /tmp/ccKAUif7.o -lstdc++ -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt /usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/crtend.o

What I find interesting is that here a path is added to the crt2.o (/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/../../../../x86_64-w64-mingw32.static/lib/../lib/crt2.o) etc files. Is clang responsible for the call to collect or wclang?

baszalmstra commented 8 years ago

I also tried to use clang 3.6 but ran into the exact same issue. It really feels like I'm configuring something incorrectly but I can't seem to spot it...

Trying with ubuntu thrusty and clang 3.5 next.

baszalmstra commented 8 years ago

It works like a charm under Ubuntu trusty. What has changed?

tpoechtrager commented 8 years ago

Mm Ill do that.. But what about the gcc_s?

I could theoretically work around the gcc_s issue, but it makes no sense because the crt2.o error won't go away that way.

Is clang responsible for the call to collect or wclang? It works like a charm under Ubuntu trusty. What has changed?

Clang up until 3.6 invokes gcc when linking is done - -wc-use-mingw-linker is doing the same (but explicitly: wclang -> gcc instead of wclang -> clang -> gcc). Do not compile source files with -wc-use-mingw-linker.

I also tried to use clang 3.6 but ran into the exact same issue. It really feels like I'm configuring something incorrectly but I can't seem to spot it...

Are you sure wclang is using Clang 3.6...?

baszalmstra commented 8 years ago

It was wrong in my previous statement. It has nothing to do with the distribution. As expected from your previous post it works fine with clang 3.5. I did some more thorough testing and found that without MXE it works flawlessly with Ubuntu Xenial Xerus + Clang 3.8.

I found out that the crt2.o etc files are properly linked when mingw-w64 is installed alongside MXE. I was under the assumption that MXE installed mingw-w64.

When I build MXE and add it to the path I now only get that -lgcc_s cannot be found:

clang version 3.8.0-2ubuntu3 (tags/RELEASE_380/final)
Target: x86_64-w64-windows-gnu
Thread model: posix
InstalledDir: /usr/bin
 "/usr/lib/llvm-3.8/bin/clang" -cc1 -triple x86_64-w64-windows-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name HelloWorld.cpp -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -momit-leaf-frame-pointer -v -dwarf-column-info -debugger-tuning=gdb -nostdsysteminc -nobuiltininc -resource-dir /usr/lib/llvm-3.8/bin/../lib/clang/3.8.0 -isystem /usr/bin/../lib/clang/3.8/include -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++ -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++/x86_64-w64-mingw32.static -I Hello -internal-isystem /usr/x86_64-w64-mingw32/include/c++ -internal-isystem /usr/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32 -internal-isystem /usr/x86_64-w64-mingw32/include/c++/backward -internal-isystem /usr/x86_64-w64-mingw32/include/c++/ -internal-isystem /usr/x86_64-w64-mingw32/include/c++//x86_64-w64-mingw32 -internal-isystem /usr/x86_64-w64-mingw32/include/c++//backward -internal-isystem /usr/include/c++/ -internal-isystem /usr/include/c++//x86_64-w64-mingw32 -internal-isystem /usr/include/c++//backward -internal-isystem include/c++ -internal-isystem include/c++/x86_64-w64-mingw32 -internal-isystem include/c++/backward -fdeprecated-macro -fdebug-compilation-dir /usr/src/cmake-hello-world -ferror-limit 19 -fmessage-length 0 -fno-use-cxa-atexit -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -o /tmp/HelloWorld-66163c.o -x c++ HelloWorld.cpp
clang -cc1 version 3.8.0 based upon LLVM 3.8.0 default target x86_64-pc-linux-gnu
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/backward"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++//x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++//backward"
ignoring nonexistent directory "/usr/include/c++//x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/include/c++//backward"
ignoring nonexistent directory "include/c++"
ignoring nonexistent directory "include/c++/x86_64-w64-mingw32"
ignoring nonexistent directory "include/c++/backward"
#include "..." search starts here:
#include <...> search starts here:
 Hello
 /usr/bin/../lib/clang/3.8/include
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++/x86_64-w64-mingw32.static
 /usr/include/c++
End of search list.
 "/usr/lib/llvm-3.8/bin/clang" -cc1 -triple x86_64-w64-windows-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -main-file-name Speaker.cpp -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -momit-leaf-frame-pointer -v -dwarf-column-info -debugger-tuning=gdb -nostdsysteminc -nobuiltininc -resource-dir /usr/lib/llvm-3.8/bin/../lib/clang/3.8.0 -isystem /usr/bin/../lib/clang/3.8/include -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++ -isystem /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++/x86_64-w64-mingw32.static -I Hello -internal-isystem /usr/x86_64-w64-mingw32/include/c++ -internal-isystem /usr/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32 -internal-isystem /usr/x86_64-w64-mingw32/include/c++/backward -internal-isystem /usr/x86_64-w64-mingw32/include/c++/ -internal-isystem /usr/x86_64-w64-mingw32/include/c++//x86_64-w64-mingw32 -internal-isystem /usr/x86_64-w64-mingw32/include/c++//backward -internal-isystem /usr/include/c++/ -internal-isystem /usr/include/c++//x86_64-w64-mingw32 -internal-isystem /usr/include/c++//backward -internal-isystem include/c++ -internal-isystem include/c++/x86_64-w64-mingw32 -internal-isystem include/c++/backward -fdeprecated-macro -fdebug-compilation-dir /usr/src/cmake-hello-world -ferror-limit 19 -fmessage-length 0 -fno-use-cxa-atexit -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -o /tmp/Speaker-ae56e6.o -x c++ Hello/Speaker.cpp
clang -cc1 version 3.8.0 based upon LLVM 3.8.0 default target x86_64-pc-linux-gnu
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/backward"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++/"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++//x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/x86_64-w64-mingw32/include/c++//backward"
ignoring nonexistent directory "/usr/include/c++//x86_64-w64-mingw32"
ignoring nonexistent directory "/usr/include/c++//backward"
ignoring nonexistent directory "include/c++"
ignoring nonexistent directory "include/c++/x86_64-w64-mingw32"
ignoring nonexistent directory "include/c++/backward"
#include "..." search starts here:
#include <...> search starts here:
 Hello
 /usr/bin/../lib/clang/3.8/include
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++
 /usr/src/mxe/usr/x86_64-w64-mingw32.static/include/../../../usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0/include/c++/x86_64-w64-mingw32.static
 /usr/include/c++
End of search list.
 "/usr/bin/x86_64-w64-mingw32.static-ld" -m i386pep -Bdynamic -o hello_world.exe /usr/x86_64-w64-mingw32/lib/crt2.o /usr/x86_64-w64-mingw32/lib/crtbegin.o -L/usr/src/mxe/usr/lib/gcc/x86_64-w64-mingw32.static/5.3.0 -L/usr/x86_64-w64-mingw32/lib -L/usr/lib -L/usr/x86_64-w64-mingw32/sys-root/mingw/lib /tmp/HelloWorld-66163c.o /tmp/Speaker-ae56e6.o -lstdc++ -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt /usr/x86_64-w64-mingw32/lib/crtend.o
/usr/bin/x86_64-w64-mingw32.static-ld: cannot find -lgcc_s
/usr/bin/x86_64-w64-mingw32.static-ld: cannot find -lgcc_s
clang: error: linker command failed with exit code 1 (use -v to see invocation)
tpoechtrager commented 8 years ago

without MXE it works flawlessly with Ubuntu Xenial Xerus + Clang 3.8.

That's what I have fixed.

I found out that the crt2.o etc files are properly linked when mingw-w64 is installed alongside MXE.

That shows how broken Clang's new MinGW driver is... MXE and mingw-w64 are different toolchains (x86_64-w64-mingw32.static != x86_64-w64-mingw32). You shouldn't mix them.

/usr/include/c++

Shouldn't be there either.

I was under the assumption that MXE installed mingw-w64.

MXE has indeed its own CRT objs.

baszalmstra commented 8 years ago

So what do you recommend? I can probably go without MXE for now but what would be the right course of action to get this stuff working? What is actually going wrong that I can report to the llvm folks?

tpoechtrager commented 8 years ago

So what do you recommend? I can probably go without MXE for now but what would be the right course of action to get this stuff working?

Either go with Clang <= 3.6 + MXE or with Clang 3.8 + the system's MinGW distribution.

What is actually going wrong that I can report to the llvm folks?

Clang's "new" MinGW driver fails to find the CRT object files and seems to ignore the fact that x86_64-w64-mingw32.static and x86_64-w64-mingw32 are different toolchains.