Boost: Change assertions to warnings #3900
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ghost
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I detected other pull requests that are modifying boost/all recipe:
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| @@ -1160,11 +1160,14 @@ def add_libprefix(n): | |||
| self.cpp_info.components[module].requires.append("{0}::{0}".format(conan_requirement)) | |||
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| if used_libraries != detected_libraries: | |||
| # TODO why do these sometime fail? | |||
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These fail because the boost build script does not build a library if some dependency/requirement is not met.
e.g. Boost.Locale is not built with -o boost:without_locale=False -o boost:i18n_backend=icu -i icu:shared=False.
This is clearly an error.
Also, Boost.Json does not build when the active c++ standard is lower then c++11, even when b2 is run with --with-json.
So these assertions catch errors, that should get fixed in the conanfile.
Because it apparently catches a prpoblem with nowide being built on your system, which I did not see until now.
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Also, currently boost is configured using --without-xxx.
So all modules are enabled except those explicitly disabled.
In #3872 I have changed it to --with-xxx. Hopefully, this will only build those components explicitly enabled.
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But there seem to be false positive errors, I only need system, yet boost is not failing because of nowide. What can we do ASAP to get boost working?
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To get it working NOW, try building with -o boost:extra_b2_flags=--without-nowide.
Be aware that this workaround will not work after #3872, because b2 does not allow mixing of --with-xxx and --without-xxx.
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It's not a false positive btw, it detected a rogue library which should not have been there.
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Specify library name and version: boost/1.74
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