windows10 64 bit ldc2 / dub issue
noone at nowhere.com
Fri Jun 22 22:45:33 UTC 2018
On Friday, 22 June 2018 at 21:22:20 UTC, Carl Sturtivant wrote:
> Today just moved from a working ldc2 1.8.0 to 1.9.0 by simply
> changing my PATH. After that a freshly made default hello world
> vibe.d application does not build.
> A simple hello.d builds and runs fine using ldc2 1.9.0 directly
> i.e. without dub.
> dub init hello --type=vibe.d
> cd hello
> dub --force
> The above builds all vibe.d libraries fine, then when building
> the application I get:
> Warning: no Visual C++ installation detected
> C:\Users\carl\ldc2-1.9.0-windows-x64\bin\ldc2.exe failed with
> exit code 1.
> and then no further information.
> The selfsame warning also occurred when building with ldc2
> 1.8.0 (and 1.4.0 prior to that, all on the same machine) but
> the failure does not occur and the resulting application runs
> Also, when building a simple hello.d without dub, which works
> fine, there is no warning "no Visual C++ installation
> detected". This warning only appears with dub and not with
> direct use of the compiler with all choices of ldc2: 1.4.0,
> 1.8.0, 1.9.0.
> ldc2 1.10.0 behaves the same as 1.9.0 in the above situations.
> I am using the stand-alone Visual C++ Build Tools as described
> and this has worked fine for me with ldc2 until now. I simply
> ran the installer for those long ago, and did nothing further.
> Any suggestions?
I just tried this in a 'x64 Native tools command prompt for VS
2017' (environment variables fully set up by MSVC, no VS
detection by LDC) and a naked cmd.exe (my system PATH and other
env variables are pretty clean, no LDC/VS traces in there) with
LDC 1.10 and its included dub (v1.8.1) on Win10, no warnings, no
It smells very much like a dub issue if you experience it with
dub only (and may have something to do with your particular
environment); there have been no recent changes to LDC regarding
VS detection & environment setup either.
You could give an older dub version a try; e.g., 1.8 ships with
dub v1.7.2 (copying dub.exe to the new dir should do it). But
it's also very strange that earlier dub/LDC combos worked despite
the 'no Visual C++ installation detected' warning, that is
supposed to be pretty fatal for linking. You can check out/hack
the `bin\msvcEnv.bat` file to troubleshoot the MSVC detection.
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