Re: GNUstep - libobjc2 compile error

[Bob Plymale]

I am following the "build GNUstep using the Microsoft toolchain".

I verified the prerequisites for building and started the build.bat as 
follows:

>build.bat

### Checking prerequisites
Using Bash shell: msys2_shell -defterm -no-start -msys2 -full-path -here -c
C:\Program Files\Git\cmd\git.exe
C:\Program Files\CMake\bin\cmake.exe
C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe
C:\Program Files\ninja\ninja.exe
C:\ProgramData\chocolatey\bin\ninja.exe
C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\Common7\IDE\CommonExtensions\Microsoft\CMake\Ninja\ninja.exe
C:\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\VC\Tools\Llvm\x64\bin\clang-cl.exe
/usr/bin/make
/usr/bin/autoconf
/usr/bin/automake
/usr/bin/libtool

######## BUILDING FOR x64 Debug ########

######## BUILDING FOR x64 Release ########

### Finished building GNUstep into:
### C:\GNUstep\x64

C:\GNUstep folder is empty, not sure where I went wrong.



On 7/22/2021 8:53 AM, Frederik Seiffert wrote:
> Hi Bob,
>
> libobjc2 currently doesn’t support MinGW. There has been work trying to get it 
> to work, but it’s currently blocked on figuring out the C++ exception handling 
> integration under MinGW. You can follow the efforts here:
> https://github.com/gnustep/libobjc2/pull/190
>
> Alternatively, if you just want a working Objective-C environment on Windows 
> with Foundation (but currently not AppKit / gnustep-gui), you can build GNUstep 
> using the Microsoft toolchain instead of MinGW using these scripts, which will 
> use Clang and libobjc2:
> http://github.com/gnustep/tools-windows-msvc
>
> If you give these scripts a try feel free to let me know if you run into any 
> issues.
>
> Frederik
>
>
> > Am 22.07.2021 um 13:32 schrieb Bob Plymale <bplymale@gmail.com>:
> >
> > Following the recommendation I cleaned up my previous attempts to get GNUstep 
> > working properly.
> >
> > I installed msys2 and all of the required and optional packages to proceed on 
> > compiling and building  the following:
> > gnustep-make tools-make
> > gnustep-base
> > gnustep-gui
> > gnustep-back
> >
> >
> > Currently I am getting compile errors on compiling libobjc2.
> >
> > Input:
> >
> > > mkdir build
> > > cd build
> > > cmake -G Ninja -DCMAKE_C_COMPILER=d:\msys64\mingw64\bin\clang-cl.exe 
> > > -DCMAKE_CXX_COMPILER=d:\msys64\mingw64\bin\clang-cl.exe ..
> > > set CCC_OVERRIDE_OPTIONS=x-TC x-TP x/TC x/TP
> > > ninja
> > Results:
> >
> > D:\Staging\libobjc2\build>cmake -G Ninja 
> > -DCMAKE_C_COMPILER=d:\msys64\mingw64\bin\clang-cl.e
> > xe -DCMAKE_CXX_COMPILER=d:\msys64\mingw64\bin\clang-cl.exe ..
> > CMake Error at build/CMakeFiles/3.18.0/CMakeCCompiler.cmake:1 (set):
> >   Syntax error in cmake code at
> >
> >     D:/Staging/libobjc2/build/CMakeFiles/3.18.0/CMakeCCompiler.cmake:1
> >
> >   when parsing string
> >
> >     d:\msys64\mingw64\bin\clang-cl.exe
> >
> >   Invalid character escape '\m'.
> > Call Stack (most recent call first):
> >   CMakeLists.txt:3 (project)
> >
> >
> > CMake Error: CMAKE_ASM_COMPILER not set, after EnableLanguage
> > -- Configuring incomplete, errors occurred!
> > See also "D:/Staging/libobjc2/build/CMakeFiles/CMakeOutput.log".
> > See also "D:/Staging/libobjc2/build/CMakeFiles/CMakeError.log”.
> >
> >
> > Anyone help me out so I can get GNUstep compiled, installed and working?
> >
> > Apologies if I am using the wrong list account. I do not see much activity on 
> > any of them..
> >
> > Thanks,
> >
> > Bob
> >
> > Ps: My end result is that I have a fully working object-c working on windows. 
> > My macOS objective-c is working just fine.