boost: fix i18n_backend=icu support for version 1.7{1,2,3}.0

[ledocc]

Specify library name and version: boost/1.7{1,2,3}.0

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Some configurations of 'boost/1.69.0' failed in build 1 (547c997bcb07d0013539da03b4e9f6a91a35b3b6):

• Linux x86_64, Release, gcc 5, libstdc++ . Options: boost:shared-True
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Some configurations of 'boost/1.69.0' failed in build 2 (f2781e87e24b2e2f365e6f40cbd4277179f7cc86):

• Macos x86_64, Debug, apple-clang 9.1, libc++ . Options: boost:shared-True
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An unexpected error happened and has been reported. Help is on its way! 🏇

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An unexpected error happened and has been reported. Help is on its way! 🏇

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All green in build 5 (213e2c7e8d83057acc22f9508b5b59f2bf6468ca)! 😊

• boost/1.69.0: Generated 131 packages. All logs here
• boost/1.70.0: Generated 131 packages. All logs here
• boost/1.71.0: Generated 131 packages. All logs here
• boost/1.72.0: Generated 131 packages. All logs here
• boost/1.73.0: Generated 131 packages. All logs here

[jgsogo]

@ledocc , I would like to know about these patches, are they considered upstream? maybe for 1.74?

[ledocc]

@jgsogo : for the boost_build patch, I add a PR 582,
for locale and regex, I will propose them when the boostbuild PR was accepted

[jgsogo]

Maybe we should wait a little bit for some feedback from the boost side, just in case they think that the patch need to be modified.

[ghost]

I detected other pull requests that are modifying boost/all recipe:

• [boost] Allow apple-clang version 10 for nowide and C++ 11 #3977
• Boost/1.72.0/mpi #3959
• boost: patch serialization sources #3918
• Boost: Change assertions to warnings #3900
• [boost] Add nowide lib #3894
• Add --disable-icu flag for iconv backend #3855
• boost: Correct --disable-iconv option #2657

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[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[prince-chrismc]

blocked

possibly fixed by #3872

[SSE4]

@prince-chrismc as #3872 is already merged, do we still need this one?

[prince-chrismc]

@SSE4 I think it's safe to close.

The i18n option works for all platforms even android and apple watches based on the other prs that have been merged