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Add host-os and target-os features.

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[SVN r34889]
This commit is contained in:
Rene Rivera
2006-08-15 18:46:13 +00:00
parent 42f6bb7bf0
commit 84162fb87c
1 changed files with 51 additions and 0 deletions
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51
src/tools/builtin.jam
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@@ -25,9 +25,60 @@ import project ;
# This feature is used to determine which OS we're on.
# In future, this may become <target-os> and <host-os>
# The future is now...
local os = [ modules.peek : OS ] ;
feature os : $(os) : propagated link-incompatible ;
# Translates from bjam current OS to the os tags used
# in host-os and target-os. I.e. it returns the
# running host-os.
local rule default-host-os ( )
{
local host-os ;
local os-list = [ feature.values host-os ] ;
if [ os.name ] in $(os-list:U)
{
host-os = [ os.name ] ;
}
else
{
switch [ os.name ]
{
case NT : host-os = windows ;
case AS400 : host-os = unix ;
case MINGW : host-os = windows ;
case BSDI : host-os = bsd ;
case COHERENT : host-os = unix ;
case DRAGONFLYBSD : host-os = bsd ;
case IRIX : host-os = sgi ;
case MACOSX : host-os = darwin ;
case KFREEBSD : host-os = freebsd ;
case * : host-os = unix ;
}
}
return $(host-os:L) ;
}
# The two OS features define a known set of abstract OS
# names. The host-os is the OS under which bjam is running.
# Even though this should really be a fixed property we need
# to list all the values to prevent unkown value errors.
# Both set the default value to the current OS to account for
# the default use case of building on the target OS.
feature host-os
: amiga aix bsd cygwin darwin dos emx freebsd hpux
linux netbsd openbsd osf qnx qnxnto sgi solaris sun sunos
svr4 sysv ultrix unixware vms windows
: optional ;
feature.set-default host-os : [ default-host-os ] ;
feature target-os
: amiga aix bsd cygwin darwin dos emx freebsd hpux
linux netbsd openbsd osf qnx qnxnto sgi solaris sun sunos
svr4 sysv ultrix unixware vms windows
: propagated link-incompatible ;
feature.set-default target-os : [ default-host-os ] ;
feature toolset : : implicit propagated symmetric ;
feature stdlib : native : propagated composite ;