* doc - build rules: honor conf instead of env vars
* doc - build rules: honor `tools.build:jobs`
* more build rules specific to Apple OS family
- honor `tools.apple:enable_bitcode` when it makes sense
- inject `-headerpad_max_install_names` linker flag if bitcode disabled
* add comment about tools.build.jobs
* comment about curation of env vars
* typo
* update multithreaded build section
* clarify build requirements and user defined tools in conf
* remove the "how" in policies
* more rules for shared libs & executables on Apple OS
* small change
* typo
* add rule to not package shared & static together
* add rule about packaging layout
* typo
* add notes about new `tools.build:compiler_executables` config
* do not enforce -headerpad_max_install_names
* fix keys of tools.build:compiler_executables
* not paragraph related to package layout for the moment
* docs: split some policies by the implicated method
* fix broken link
* fix broken link
* Apply suggestions from code review
Co-authored-by: Francisco Ramírez <franchuti688@gmail.com>
Co-authored-by: SSE4 <tomskside@gmail.com>
Co-authored-by: Francisco Ramírez <franchuti688@gmail.com>
Co-authored-by: SSE4 <tomskside@gmail.com>
