* switch to chronos metrics, remove insecure
See https://github.com/status-im/nimbus-eth2/pull/2468
also fixes pcre linking for real, and adds some random build flags that
help nimbus-eth2 stay afloat
* fix help
* don't omit frame pointers on windows
why:
it was convenient to have relocatable source modules when writing the
vm interface wrappers. this patch moves it back to the standard.
also:
there are no deep links into the vm folder anymore which leaves some
room for manoeuvring inside
why:
the nvm_ prefix was used inside the vm folder to hide them temporarily
from the outside world while writing export wrappers. now all
functionality is accessed via vm_*, rather than vm/* imports.
todo:
at a later stage the import headers of the vm modules need to get fixed
to meet style guide standards (as jacek kindly pointed out.)
why:
relative paths make sources inherently non-relocatable
details:
import base is set to the nimbus directoy, so importing ./stack
from file interpreter.nim becomes vm/stack etc.
caveat:
a file named nimbus/strformat.nim would clash with strformat (but
not with std/strformat)
why:
under win/mingw32 the --docRoot argument value for the NIM doc
generator needs a window-ish path C:\\MinGW\\msys\\1.0\\home\\...
also:
fix clean up for nimdoc.out.css or nimdoc_out.css (varies on
win/posix operating system)
why:
* easy browsing of prototype docs, allows to follow links with
a web browser on the local file system
* some md & png files may contain additional documentation
overview:
* separate nimbus/makefile, try "make -C nimbus" for instructions
* running "make -C nimbus docs" will do the job
* x-ref file in nimbus/docs/theindex.html
* additional md and png files in nimbus/docs/ex/.. subdirectory
details:
* a newer nim compiler provides better referencing when available, in
particular the back link to the indices are not provided by the 1.2.10
nim compiler (automatically handled by makefile)
* make patterns are used to update files only when the timestamp changes
* should provide "discount" markdown generator, otherwise fallback
to <pre/> encapsulated text file