Hello, I'm very interested in the Boost.Units library. I've been therefore trying to use the version, which is available from the Boost Sandbox SVN repository (Revision 41778): svn co http://svn.boost.org/svn/boost/sandbox/units boost_units I've no problems using the header-only Boost.Units library in my own small test programs, but I'm struggling to build the reference documentation located in libs/units/doc/. Therefore, I'm currently forced to use the outdated HTML documentation from the mcs_units_v0.7.2.zip archive available from the Boost file vault or read directly the units.qbk source. I'm using Boost.Units together with boost-1.34.1, which is unpacked in a parallel directory: $ ls boost-1.34.1 boost_units on my laptop running Debian Etch: $ uname -a Linux babylon5 2.6.18-5-686 #1 SMP Wed Oct 3 00:12:50 UTC 2007 i686 GNU/Linux $ g++ --version g++ (GCC) 4.1.2 20061115 (prerelease) (Debian 4.1.1-21) After defining the environment variable: BOOST_BUILD_PATH=/tools/build/v2 and creating the following user-config.jam in $BOOST_BUILD_PATH, I was able to build the boost libraries itself, and the HTML and PDF documentation from their Boost.Book and Quickbook sources: #### Begin user-config.jam #### using gcc : 4.1 : g++-4.1 ; using xsltproc : "/usr/bin/xsltproc" ; using boostbook : "/usr/share/xml/docbook/stylesheet/nwalsh/" : "/usr/share/xml/docbook/schema/dtd/4.2" ; using doxygen : "/usr/bin/doxygen" ; using fop : "/usr/bin/fop" : "/usr/lib/jvm/java-6-sun-1.6.0.00" ; ##### End user-config.jam ##### I have to admit that I don't fully understand yet the boost.build system, but I achieved to create the necessary Jamroot file in boost_units/ (my working copy of the units library). It contains only #### Begin of Jamroot #### use-project boost : ../boost-1.34.1 ; ##### End of Jamroot ##### Then I was able to build the tests in libs/units/test and libs/units/test_headers. All tests in tests in libs/units/test and only the test for non_si_units.hpp fails in libs/units/test_headers. Judging from the #define error in this header, it seems to be expected. But running bjam in the libs/units/doc directory fails after outputting several times: runtime error: file /home/maehne/build/boost-1.34.1/tools/boostbook/xsl/docbook.xsl line 338 element element xsl:element: The QName 'xi:include' has no namespace binding in scope in the stylesheet; this is an error, since the namespace was not s pecified by the instruction itself. There are also a lot of warnings like: warning: cannot find header `boost/units/operators.hpp' warning: cannot find header `boost/units/systems/trig.hpp' Cannot find class named 'boost::units::unit' Cannot find class named 'boost::units::quantity' I've seen on the Boost developers mailing list, that there were previously problems with Boost.Book discussed as in the thread from "[units] Boost.Book problems" from August 2007 http://lists.boost.org/Archives/boost/2007/08/126004.php. I also tried to use boost-trunk from the SVN repository (revision 41797). But then I seem to run into the same error, which was posted by John Maddock http://lists.boost.org/Archives/boost/2007/08/126031.php in the above mentioned thread: Generate XML output for dir /home/torsten/build/boost-units/boost/ Generate XML output for dir /home/torsten/build/boost-units/boost/units/systems/physical_dimensions/ Generate XML output for dir /home/torsten/build/boost-units/boost/units/systems/ Generate XML output for dir /home/torsten/build/boost-units/boost/units/ [1]+ Done rm -f "bin/gcc-4.2.2/debug/dimensions_reference-xml/*.xml" xslt-xsltproc bin/gcc-4.2.2/debug/dimensions_reference-xml.doxygen xslt-xsltproc bin/gcc-4.2.2/debug/dimensions_reference-xml.boostbook warning: failed to load external entity "Reference" cannot parse Reference XML_CATALOG_FILES=../../../../boost-trunk/bin.v2/boostbook_catalog.xml export XML_CATALOG_FILES "/usr/bin/xsltproc" --stringparam boost.doxygen.reftitle ""Dimensions Reference"" --xinclude -o "bin/gcc-4.2.2/debug/dimensions_reference-xml.boostbook" "/home/torsten/build/boost-trunk/tools/boostbook/xsl/doxygen/doxygen2boostbook.xsl" "bin/gcc-4.2.2/debug/dimensions_reference-xml.doxygen" ...failed xslt-xsltproc bin/gcc-4.2.2/debug/dimensions_reference-xml.boostbook... ...skipped dimensions_reference.xml for lack of dimensions_reference-xml.boostbook... ...skipped units.docbook for lack of trig_reference.xml... ...skipped <phtml>standalone_HTML.manifest for lack of units.docbook... ...failed updating 7 targets... ...skipped 10 targets... ...updated 64 targets... Exit 1 Am I doing something wrong or am I facing a bug in the Boost.Units, Boost.Book or QuickBook? Could maybe someone, who succeeded to build the Boost.Units documentation, send it to me in HTML or PDF format? Best regards, Torsten Mähne