Stefan Seefeld wrote:
Right. So what's your suggestion / conclusion for to resolve this ?
I'm working on it. I could use a little help. What is the correct way to configure Boost.Build's `python` on Travis Xenial, which supposedly has Python 2.7.15, 3.6.7, and 3.7.1 preinstalled? https://docs.travis-ci.com/user/reference/xenial/#python-support I tried putting using python : 2.7 ; using python : 3.6 ; using python : 3.7 ; in ~/user-config.jam, but that doesn't seem to work. With `python=2.7,3.6,3.7` I get /home/travis/build/boostorg/boost-root/tools/build/src/build/feature.jam:491: in feature.validate-value-string from module feature error: "3.6" is not a known value of feature <python> error: legal values: "2.7" /home/travis/build/boostorg/boost-root/tools/build/src/build/property.jam:345: in validate1 from module property /home/travis/build/boostorg/boost-root/tools/build/src/build/property.jam:371: in property.validate from module property /home/travis/build/boostorg/boost-root/tools/build/src/build/build-request.jam:271: in convert-command-line-element from module build-request /home/travis/build/boostorg/boost-root/tools/build/src/build/build-request.jam:222: in build-request.convert-command-line-elements from module build-request /home/travis/build/boostorg/boost-root/tools/build/src/build-system.jam:774: in load from module build-system /home/travis/build/boostorg/boost-root/tools/build/src/kernel/modules.jam:295: in import from module modules /home/travis/build/boostorg/boost-root/tools/build/src/kernel/bootstrap.jam:139: in boost-build from module /home/travis/build/boostorg/boost-root/boost-build.jam:17: in module scope from module