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empeg's source tree has a directory called lib, in which the core libraries used by all of our products live. Unfortunately, this conflicts with one of the included pseudo-targets that jam uses.

The fix is relatively simple. You need to edit the included Jambase file, and rename every mention of lib to something else, e.g. libs.

Lines 552-554:

DEPENDS all : shell files lib exe obj ;
DEPENDS all shell files lib exe obj : first ;
NOTFILE all first shell files lib exe obj dirs clean uninstall ;

...change this to...

DEPENDS all : shell files libs exe obj ;
DEPENDS all shell files libs exe obj : first ;
NOTFILE all first shell files libs exe obj dirs clean uninstall ;

Lines 827-830:

	else
	{
	    DEPENDS lib : $(_l) ;
	}

...change this to...

	else
	{
	    DEPENDS libs : $(_l) ;
	}

You should probably also change the comments at lines 41-52 that refer to 'lib'.

This then requires that you use your new Jambase instead of the included one. You have two choices:

1. Use the -f switch to jam to tell jam where to find an alternate Jambase file. This is the simplest, but requires more typing.
2. Recompile jam, including the new file. This is relatively simple. Copy the edited Jambase into the source directory for jam, and rebuild it.