I can't seem to get bjam v2 to build multiple library versions. The O/S is: # uname -a Linux myhost 2.6.9-1.667 #1 Tue Nov 2 14:41:25 EST 2004 i686 i686 i386 GNU/Linux First I untarD boost_1_33_1.tar.bz2 to /home/dick and followed the instructions for building bjam. Then I copied bjam to /home/dick/bin. Next I modified /home/dick/boost_1_33_1/tools/build/v2/example/hello/user-config.jam adding the 3.4.4.x86 and 3.3.arm versions like so: <mod> # Configure specific gcc version, giving alternative name to use # using gcc : 3.2 : g++-3.2 ; using gcc : 3.4.4.x86 ; using gcc : 3.3.arm : <fake CR> /opt/crosstool/arm-softfloat-linux-gnu/<fake CR> gcc-3.3.3-glibc-2.3.2<fake CR> /bin/arm-softfloat-linux-gnu-c++ ; </mod> Then (because I'm confused) I copied the modified user-config.jam to /home/dick/boost_1_33_1 as well. The version seems to be correct. cd /home/dick/boost_1_33_1 # ~/bin/bjam --v2 --version Boost.Build V2 (Milestone 10) Boost.Jam 03.01.11 The example/hello build seems to work. cd /home/dick/boost_1_33_1/tools/build/v2/example/hello # ~/bin/bjam gcc-3.4.4.x86 gcc-3.3.arm ...found 13 targets... ...updating 9 targets... MkDir1 bin MkDir1 bin/gcc-3.4.4.x86 MkDir1 bin/gcc-3.4.4.x86/debug gcc.compile.c++ bin/gcc-3.4.4.x86/debug/hello.o gcc.link bin/gcc-3.4.4.x86/debug/hello MkDir1 bin/gcc-3.3.arm MkDir1 bin/gcc-3.3.arm/debug gcc.compile.c++ bin/gcc-3.3.arm/debug/hello.o gcc.link bin/gcc-3.3.arm/debug/hello ...updated 9 targets... Now I hit a brick wall. I've tried setting both BOOST_BUILD_PATH and BOOST_ROOT to both /home/dick/boost_1_33_1/tools/build/v2 and /home/dick/boost_1_33_1. If I try cd /home/dick/boost_1_33_1 # ~/bin/bjam gcc-3.4.4.x86 gcc-3.3.arm install I get <msg> don't know how to make gcc-3.4.4.x86 don't know how to make gcc-3.3.arm </msg> If I try cd /home/dick/boost_1_33_1/tools/build/v2 # ~/bin/bjam gcc-3.4.4.x86 gcc-3.3.arm install I get <msg> notice: could not find main target install notice: assuming it's a name of file to create /home/dick/boost_1_33_1/tools/build/v2/build/project.jam:680: in attribute warning: rulename $($(project).attributes).get expands to empty string /home/dick/boost_1_33_1/tools/build/v2/build/project.jam:690: in project.target /home/dick/boost_1_33_1/tools/build/v2/build-system.jam:256: in load /home/dick/boost_1_33_1/tools/build/v2/kernel/modules.jam:259: in import /home/dick/boost_1_33_1/tools/build/v2/kernel/bootstrap.jam:153: in boost-build /home/dick/boost_1_33_1/tools/build/v2/boost-build.jam:2: in module scope /home/dick/boost_1_33_1/tools/build/v2/build/project.jam:680: in project.attribute warning: rulename $($(project).attributes).get expands to empty string /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:200: in object(project-target)@3.__init__ /home/dick/boost_1_33_1/tools/build/v2/kernel/class.jam:92: in new /home/dick/boost_1_33_1/tools/build/v2/build/project.jam:690: in project.target /home/dick/boost_1_33_1/tools/build/v2/build-system.jam:256: in load /home/dick/boost_1_33_1/tools/build/v2/kernel/modules.jam:259: in import /home/dick/boost_1_33_1/tools/build/v2/kernel/bootstrap.jam:153: in boost-build /home/dick/boost_1_33_1/tools/build/v2/boost-build.jam:2: in module scope /home/dick/boost_1_33_1/tools/build/v2/build/project.jam:680: in project.attribute warning: rulename $($(project).attributes).get expands to empty string /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:219: in get /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:281: in targets-to-build /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:250: in object(project-target)@3.generate /home/dick/boost_1_33_1/tools/build/v2/build-system.jam:267: in load /home/dick/boost_1_33_1/tools/build/v2/kernel/modules.jam:259: in import /home/dick/boost_1_33_1/tools/build/v2/kernel/bootstrap.jam:153: in boost-build /home/dick/boost_1_33_1/tools/build/v2/boost-build.jam:2: in module scope /home/dick/boost_1_33_1/tools/build/v2/build/project.jam:680: in project.attribute warning: rulename $($(project).attributes).get expands to empty string /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:219: in get /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:282: in targets-to-build /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:250: in object(project-target)@3.generate /home/dick/boost_1_33_1/tools/build/v2/build-system.jam:267: in load /home/dick/boost_1_33_1/tools/build/v2/kernel/modules.jam:259: in import /home/dick/boost_1_33_1/tools/build/v2/kernel/bootstrap.jam:153: in boost-build /home/dick/boost_1_33_1/tools/build/v2/boost-build.jam:2: in module scope /home/dick/boost_1_33_1/tools/build/v2/build/project.jam:680: in project.attribute warning: rulename $($(project).attributes).get expands to empty string /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:219: in get /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:281: in targets-to-build /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:250: in object(project-target)@3.generate /home/dick/boost_1_33_1/tools/build/v2/build-system.jam:267: in load /home/dick/boost_1_33_1/tools/build/v2/kernel/modules.jam:259: in import /home/dick/boost_1_33_1/tools/build/v2/kernel/bootstrap.jam:153: in boost-build /home/dick/boost_1_33_1/tools/build/v2/boost-build.jam:2: in module scope /home/dick/boost_1_33_1/tools/build/v2/build/project.jam:680: in project.attribute warning: rulename $($(project).attributes).get expands to empty string /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:219: in get /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:282: in targets-to-build /home/dick/boost_1_33_1/tools/build/v2/build/targets.jam:250: in object(project-target)@3.generate /home/dick/boost_1_33_1/tools/build/v2/build-system.jam:267: in load /home/dick/boost_1_33_1/tools/build/v2/kernel/modules.jam:259: in import /home/dick/boost_1_33_1/tools/build/v2/kernel/bootstrap.jam:153: in boost-build /home/dick/boost_1_33_1/tools/build/v2/boost-build.jam:2: in module scope don't know how to make install ...found 1 target... ...can't find 1 target... </msg> Apologies for all the error messages but I'm so lost I don't even know what can be snipped and what is meaningful. I'd be very grateful if someone could point me in the right direction. Regards, Dick Bridges