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[win] Backport win MSYS2 build pr #46987

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inkydragon
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fix build error: "ERROR: Too few special library names specified, check LOADER_BUILD_DEP_LIBS and friends!"

inkydragon and others added 3 commits September 30, 2022 18:56
* Makefile: MSYS2: close path conversion for `DEP_LIBS`

Automatic path conversion will replace `:` with `;`

* Makefile: MSYS2: use `cygpath` for path convert

ref: https://www.msys2.org/docs/filesystem-paths/#manual-unix-windows-path-conversion

* devdoc/win/msys2: add build steps

* devdoc/win/msys2: Add x86/x64 build notes

* devdoc/win/msys2: apply sugestions

Co-Authored-By: Elliot Saba <staticfloat@gmail.com>

* Instead of `CC_WITH_ENV`, scope environment variables to targets

* Fix whitespace

Co-authored-by: Elliot Saba <staticfloat@gmail.com>
This was causing our rewriting of the loader's RPATH emulation to fail
after running `make install`, as MSYS2 was rewriting our list that looks
like:

```
../bin/libgcc_s_seh-1.dll:../bin/libopenlibm.dll:@../bin/libjulia-internal.dll:@../bin/libjulia-codegen.dll:
```

Into one that looked like:
```
..\bin\libgcc_s_seh-1.dll;..\bin\libopenlibm.dll;@..\bin\libjulia-internal.dll;@..\bin\libjulia-codegen.dll;
```

By exporting `MSYS2_ARG_CONV_EXCL='*'` for all `stringreplace`
invocations, we dodge this issue, as documented by MSYS2 [0].

[0] https://www.msys2.org/wiki/Porting/#filesystem-namespaces
Tragically, I believe MSYS2 is messing with options such as
`/VERYSILENT` turning them instead into `C:\msys2\VERYSILENT` or
similar.
@inkydragon inkydragon added building Build system, or building Julia or its dependencies system:windows Affects only Windows labels Sep 30, 2022
@DilumAluthge
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I think the base branch here needs to be backports-release-1.8 instead of release-1.8.

@inkydragon inkydragon closed this Sep 30, 2022
@inkydragon inkydragon deleted the backport-msys2 branch September 30, 2022 11:04
@KristofferC
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You can just change the branch in the github ui

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4 participants