Re: [boost] Re: boost.build, boost-build.jam

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2001-10-22 13:40:52

Ah, sorry.

Looking at makedebugjam.bat (which I recommend you use to build jam), I am
setting the following variables to be empty:

JAMBASE= BOOST_ROOT= BOOST_BUILD_PATH=

The Jambase I have checked in uses these variables to find the build system.
The logic is described in the following comment at the end of Jambase:

#
# Now include the build system, or, if no build system specified,
# the user's Jamfile.
#

# The logic for finding the build system:
#
# The process is controlled by the  variables (in decreasing
# precedence):

# If JAMBASE is set, it specifies the build system filename
#
# Otherwise, if BOOST_BUILD_PATH or BOOST_ROOT is set, the build system
filename
# is boost-build.jam.
#
# If the build system filename does not contain a path specification, the
build
# system file is searched for on $(BOOST_BUILD_PATH) then at
# $(BOOST_ROOT)/tools/build.
#
# If neither JAMBASE, BOOST_ROOT, nor BOOST_BUILD_PATH is set, we use the
# built-in Jambase (this file) and load the user's Jamfile. Perforce Jam has
# this behavior, and it is used for building Jam itself. Thus, if you
rebuild
# Jam, these variables should be unset.

-Dave

===================================================
  David Abrahams, C++ library designer for hire
 resume: http://users.rcn.com/abrahams/resume.html

        C++ Booster (http://www.boost.org)
          email: david.abrahams_at_[hidden]
===================================================

----- Original Message -----
From: "Hugo Duncan" <hugo.duncan_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Monday, October 22, 2001 1:24 PM
Subject: [boost] Re: boost.build, boost-build.jam

> Dave,
>
> jam0.exe builds fine (msvc and borland), but when running jam0.exe it
> complains that it can not find boost-build.jam (not boost-base.jam).
> I assume this is not supposed to happen.
>
> I am on NT, with cygwin, msvc, borland and gcc.  At the moment, I am
> trying to get jam to compile a gui borland project using dfm files.
>
> Hugo
>
> --- In boost_at_y..., "David Abrahams" <david.abrahams_at_r...> wrote:
> > Hi Hugo,
> >
> > There should be no complaints about boost-build.jam unless you are
> using the
> > "-f allyourbase.jam" option. The jam executable doesn't normally
> look for
> > Boost.Build.
> >
> > If you are using Windows and have access to VC++, you can check out
> > tools/build/jam_src on the jam_src branch. Included is a .bat file
> called
> > makedebugjam.bat which builds a debug version of jam.
> >
> > Currently the script relies on the presence of cygwin as well, to
> run bison.
> > If you need to eliminate the requirement on cygwin,  get rid of the
> > definitions of the YACC variable.
> >
> > If you want to do a similar thing on other platforms, you can
> follow the
> > model in the .bat file. The key thing to notice is that if you're
> starting
> > with a make command, you need to define both CFLAGS (for the
> initial make)
> > and CCFLAGS (for the jam bootstrap) to enable debugging. I have not
> tried to
> > build a debugging version by running jam (instead of make), but it
> should
> > work if you supply the important parameters on the jam command-line
> > (e.g. -sCCFLAGS=...).
> >
> > HTH,
> > Dave
> >
> > ===================================================
> >   David Abrahams, C++ library designer for hire
> >  resume: http://users.rcn.com/abrahams/resume.html
> >
> >         C++ Booster (http://www.boost.org)
> >           email: david.abrahams_at_r...
> > ===================================================
> >
> > ----- Original Message -----
> > From: "Hugo Duncan" <hugo.duncan_at_a...>
> > To: <boost_at_y...>
> > Sent: Monday, October 22, 2001 8:57 AM
> > Subject: [boost] boost.build, boost-build.jam
> >
> >
> > > Hi,
> > >
> > > In trying out boost.build on one of my projects I have had
> problems
> > > with jam crashing.  I think that this is due to the (character)
> > > length of the requirements text in my Jamfile.
> > >
> > > I thought I would build a deug version of jam using the jam_src to
> > > have a look at exactly where it is crashing, but while running
> make
> > > it complains boost-build.jam is not found.
> > >
> > > Any suggestions?
> > >
> > > Thanks,
> > > Hugo
> > >
> > >
> > > Info: http://www.boost.org  Unsubscribe:
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> > >
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> > >
>
>
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