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create dummy alias for boost_python3 when python3 is unavailable 

Versions of boost as recent as 1.63 do not create a stub alias for python3
which causes build failures if no version of python3 is configured.
Duplicate that behavior so that building works even on older versions of
boost.
This commit is contained in:
Steven Siloti 2018-04-12 21:05:02 -07:00 committed by Arvid Norberg
parent 64d6b49004
commit b3faba329d
1 changed files with 24 additions and 1 deletions
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25
bindings/python/Jamfile
View File

@ -1,4 +1,5 @@
import python ;
import feature ;
import feature : feature ;
import project ;
import targets ;
@ -27,11 +28,33 @@ if $(LIBTORRENT_PYTHON_INTERPRETER)
using python : : "$(LIBTORRENT_PYTHON_INTERPRETER)" : : : <libtorrent-python>on ;
}
# copied from boost 1.63's boost python jamfile
rule find-py3-version
{
local versions = [ feature.values python ] ;
local py3ver ;
for local v in $(versions)
{
if $(v) >= 3.0
{
py3ver = $(v) ;
}
}
return $(py3ver) ;
}
if $(BOOST_ROOT)
{
use-project /boost : $(BOOST_ROOT) ;
alias boost_python : /boost/python//boost_python : : : <include>$(BOOST_ROOT) ;
alias boost_python3 : /boost/python//boost_python3 : : : <include>$(BOOST_ROOT) ;
if [ find-py3-version ]
{
alias boost_python3 : /boost/python//boost_python3 : : : <include>$(BOOST_ROOT) ;
}
else
{
alias boost_python3 ;
}
}
else
{