Thread overview
GDC MINGW BUILD: version (Windows) NOT DEFINED
December 23
It seems version (Windows) is not defined into the compiler gdc.exe
gdc (GCC) 9.0.0 20181221 (experimental)
built with msys2/mingw-w64 on Windows 10.

The trouble appears while building libdruntime

EXAMPLE: libphobos\libdruntime\core\stdc\time.d
error: undefined identifier 'time_t'
error: undefined identifier 'tm'

Manually add

version (GNU) {
    alias c_long time_t;
    alias c_long clock_t;
}

into time.d then it compiles but it seems weird.

The trouble is that there are many other similar errors
with core\stdc\stddef.d, stdlib.d, stdint.d, etc ...

Help needed.




December 23
Am Sun, 23 Dec 2018 01:21:22 +0000 schrieb MINGW-USER:

> It seems version (Windows) is not defined into the compiler gdc.exe gdc
> (GCC) 9.0.0 20181221 (experimental)
> built with msys2/mingw-w64 on Windows 10.
> 
> The trouble appears while building libdruntime
> 
> EXAMPLE: libphobos\libdruntime\core\stdc\time.d error: undefined
> identifier 'time_t'
> error: undefined identifier 'tm'
> 
> Manually add
> 
> version (GNU) {
>      alias c_long time_t; alias c_long clock_t;
> }
> 
> into time.d then it compiles but it seems weird.
> 
> The trouble is that there are many other similar errors with core\stdc\stddef.d, stdlib.d, stdint.d, etc ...
> 
> Help needed.

That's an interesting coincidence, I just set up a Windows 10 VM + MSYS2 for MinGW development a day ago.

How exactly did you build GCC? I tried to build in the mingw64 environment using the same configure flags as in the mingw-w64-gcc package [1] and without any GCC patches. I had to fix some build errors in filename.c, did you get these as well? Additionally the built toolchain is not properly relocatable: Installing into / works, but if I use DESTDIR=/somewhere/else to install, the new gcc doesn't find the headers in /mingw64/x86_64... anymore. So if you know any better way to build GCC in the MSYS2 environment, please let me know :-)

And regarding the specific problem you mentioned: As gdc is untested on the mingw backend, the patches for mingw which set version(Windows) have not been applied to the GCC sources. You have to apply this patch manually: https://github.com/D-Programming-GDC/GDC/blob/ 958363de2ba09656de340d13ca56f80f8ba10805/patches/targetdm-untested.patch

However, phobos probably won't build right now either way.


[1]
../gcc-9-20181216/configure --enable-languages=lto,d,c++ --prefix=/mingw64
--with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32 --
host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --with-native-system-
header-dir=/mingw64/x86_64-w64-mingw32/include --libexecdir=/mingw64/lib
--with-arch=x86-64 --with-tune=generic --enable-shared --enable-static --
enable-libatomic --enable-threads=posix --enable-graphite --disable-
libstdcxx-pch --disable-libstdcxx-debug --disable-isl-version-check --
enable-lto --enable-libgomp --disable-multilib --disable-rpath --disable-
win32-registry --disable-nls --disable-werror --disable-symvers --with-
libiconv --with-system-zlib --with-gmp=/mingw64 --with-mpfr=/mingw64 --
with-mpc=/mingw64 --with-isl=/mingw64 --with-gnu-as --with-gnu-ld --
disable-bootstrap --enable-libphobos

-- 
Johannes
December 24
On Sunday, 23 December 2018 at 15:15:37 UTC, Johannes Pfau wrote:
> Am Sun, 23 Dec 2018 01:21:22 +0000 schrieb MINGW-USER:
>
>> It seems version (Windows) is not defined into the compiler gdc.exe gdc
>> (GCC) 9.0.0 20181221 (experimental)
>> built with msys2/mingw-w64 on Windows 10.
>> 
>> The trouble appears while building libdruntime
>> 
>> EXAMPLE: libphobos\libdruntime\core\stdc\time.d error: undefined
>> identifier 'time_t'
>> error: undefined identifier 'tm'
>> 
>> Manually add
>> 
>> version (GNU) {
>>      alias c_long time_t; alias c_long clock_t;
>> }
>> 
>> into time.d then it compiles but it seems weird.
>> 
>> The trouble is that there are many other similar errors with core\stdc\stddef.d, stdlib.d, stdint.d, etc ...
>> 
>> Help needed.
>
> That's an interesting coincidence, I just set up a Windows 10 VM + MSYS2 for MinGW development a day ago.
>
> How exactly did you build GCC? I tried to build in the mingw64 environment using the same configure flags as in the mingw-w64-gcc package [1] and without any GCC patches. I had to fix some build errors in filename.c, did you get these as well? Additionally the built toolchain is not properly relocatable: Installing into / works, but if I use DESTDIR=/somewhere/else to install, the new gcc doesn't find the headers in /mingw64/x86_64... anymore. So if you know any better way to build GCC in the MSYS2 environment, please let me know :-)
>
> And regarding the specific problem you mentioned: As gdc is untested on the mingw backend, the patches for mingw which set version(Windows) have not been applied to the GCC sources. You have to apply this patch manually: https://github.com/D-Programming-GDC/GDC/blob/ 958363de2ba09656de340d13ca56f80f8ba10805/patches/targetdm-untested.patch
>
> However, phobos probably won't build right now either way.
>
>
> [1]
> ../gcc-9-20181216/configure --enable-languages=lto,d,c++ --prefix=/mingw64
> --with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32 --
> host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --with-native-system-
> header-dir=/mingw64/x86_64-w64-mingw32/include --libexecdir=/mingw64/lib
> --with-arch=x86-64 --with-tune=generic --enable-shared --enable-static --
> enable-libatomic --enable-threads=posix --enable-graphite --disable-
> libstdcxx-pch --disable-libstdcxx-debug --disable-isl-version-check --
> enable-lto --enable-libgomp --disable-multilib --disable-rpath --disable-
> win32-registry --disable-nls --disable-werror --disable-symvers --with-
> libiconv --with-system-zlib --with-gmp=/mingw64 --with-mpfr=/mingw64 --
> with-mpc=/mingw64 --with-isl=/mingw64 --with-gnu-as --with-gnu-ld --
> disable-bootstrap --enable-libphobos


Yeah I had to fix some build errors in filename.c (attempt to use poisoned "malloc"; invalid const_cast from type 'const char*' to type 'void*'; and '_mkdir' was not declared in this scope)

The following script is based on the instructions I found at https://github.com/StephanTLavavej/mingw-distro

The end result will be stored at C:\build\dest
I can move/rename 'dest' to somewhere else and it works
(no relocatable problem, I guess)

I tried to reproduce every step I took. It's something like this ...

------------- build mingw c, c++, d ------------------

Map C:\build to /build in msys2
(/etc/fstab.d)

export PATH="/c/Dev/mingw64/bin:/c/Dev/msys64/usr/bin:/c/Windows/System32:/c/Windows"
where /c/Dev/mingw64 is from https://sourceforge.net/projects/mingw-w64/files/Multilib%20Toolchains%28Targetting%20Win32%20and%20Win64%29/ray_linn/gcc-6.X-with-ada/gcc-6.1.0-multilib-mingw-4.0.6-with-ada-201605226.7z

Download binutils-2.31.1.tar.xz from the GNU FTP
and extract into /build

cd /build
mkdir build-binutils
cd build-binutils
../binutils-2.31.1/configure \
--build=x86_64-w64-mingw32 \
--host=x86_64-w64-mingw32 \
--target=x86_64-w64-mingw32 \
--prefix=/build/dest
make
make install


Download and extract mingw-w64-v5.0.4.zip from
https://sourceforge.net/projects/mingw-w64/files/mingw-w64/mingw-w64-release/
(version 6.0.0 does not work)

cd /build
mkdir build-mingw-w64
cd build-mingw-w64
../mingw-w64-v5.0.4/configure \
--build=x86_64-w64-mingw32 \
--host=x86_64-w64-mingw32 \
--prefix=/build/dest/x86_64-w64-mingw32 \
--disable-lib32 \
--with-libraries=winpthreads \
--with-tools=all
make
make install


Download and extract
- gmp-6.1.2.tar.gz
- mpfr-3.1.6.tar.gz
- mpc-1.1.0.tar.gz
- isl-0.18.tar.gz
into directory /build/gcc-all

Download https://github.com/StephanTLavavej/mingw-distro/blob/v15.4/mpfr.patch
patch -Z -d /build/gcc-all/mpfr-3.1.6 -p1 < mpfr.patch

cd /build/gcc-all
mv /path/to/gcc-trunk src
(where /path/to/gcc-trunk is the root directory of gcc svn)
mv gmp-6.1.2 src/gmp
mv mpfr-3.1.6 src/mpfr
mv mpc-1.1.0 src/mpc
mv isl-0.18 src/isl

Create junction point
cmd /C "mklink /J C:\build\dest\mingw C:\build\dest\x86_64-w64-mingw32"

cd /build
mkdir build-gcc
cd build-gcc
../gcc-all/src/configure \
--enable-languages=c,c++,d \
--build=x86_64-w64-mingw32 \
--host=x86_64-w64-mingw32 \
--target=x86_64-w64-mingw32 \
--disable-shared \
--disable-multilib \
--disable-bootstrap \
--prefix=/build/dest \
--with-sysroot=/build/dest \
--disable-libstdcxx-pch \
--disable-libstdcxx-verbose \
--disable-nls \
--disable-win32-registry \
--enable-threads=posix \
--enable-libgomp
make
make install

cp /build/dest/x86_64-w64-mingw32/bin/libwinpthread-1.dll /build/dest/bin/libwinpthread-1_x64.dll
cp /build/dest/x86_64-w64-mingw32/bin/libwinpthread-1.dll /build/dest/bin/libwinpthread-1.dll

Here I noticed libphobos is not built.

export PATH="/build/dest/bin:/c/Dev/msys64/usr/bin:/c/Windows/System32:/c/Windows"
cd /build
mkdir build-phobos
cd build-phobos
../gcc-all/src/libphobos/configure --prefix=/build/dest
make

Here I see the problem mentioned in the original post. I'll try to apply targetdm-untested.patch.

Thank you for the info.