Fix #15395: libarchive build fails for x86_windows_v120

[Olernov]

Build fails on compiling xxhash.c having a fuction with "inline" specifier.
"inline" is a c99 keyword and c99 is not yet (fully) supported with MSVC toolset v120:
"The inline keyword is available only in C++. The __inline and __forceinline
keywords are available in both C and C++. For compatibility with previous versions,
_inline is a synonym for __inline."
(Source: http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx)

This fix adds a patch that replaces "inline" with "__inline" in xxhash.c

Describe the pull request

• What does your PR fix? Fixes #

• Which triplets are supported/not supported? Have you updated the CI baseline?

• Does your PR follow the maintainer guide?

[ghost]

All CLA requirements met.

[JackBoosY]

Hi @Olernov, thanks for this PR!
Can you report this issue to the upstream and wait for official approval?

Thanks.

[Olernov]

Ok, submitted:
libarchive/libarchive#1486
libarchive/libarchive#1487

[JackBoosY]

Waiting for official reply.

[Olernov]

Libarchive has accepted the pull request libarchive/libarchive#1487. Probably the fix will be included into the next release.

[JackBoosY]

Please bump the port version. See documentation.
Also please run command vcpkg x-add-version --all then commit the changes.

[Olernov]

I think we should better wait for the next release of libarchive and then bump the port version, what do you think?

[JackBoosY]

@Olernov Fine.

[JackBoosY]

So, the upstream merged your changes, can you please merge your branch to master and run x-add-version?

[Olernov]

Opened a new PR for this: #20133