Hi folks I just started with boost and have run into the first problem: the example program (see http://www.boost.org/doc/libs/1_46_0/more/getting_started/unix-variants.html) does not run though everything should be in place: The error is 'example.cpp:1:35: error: boost/lambda/lambda.hpp: No such file or directory" yes, I did check my file structure (see attached extract from Terminal). Installation of boost was done via sudo port... Anyone an idea what the issue might be? Thx GS User:~ SUserHG$ ls Desktop Downloads Library Music Public QuantLib-1.0.1.tar.gz example.cpp Documents Install-QuantLib.txt Movies Pictures QuantLib-1.0.1 Sites SUser:~ SUserHG$ cd /opt/local/include/boost/lambda SUser:lambda SUserHG$ ls algorithm.hpp casts.hpp construct.hpp core.hpp exceptions.hpp lambda.hpp numeric.hpp bind.hpp closures.hpp control_structures.hpp detail if.hpp loops.hpp switch.hpp SUser:lambda SUserHG$ cd SUser:~ SUserHG$ c++ -I /opt/local/include/boost example.cpp -o example example.cpp:1:35: error: boost/lambda/lambda.hpp: No such file or directory example.cpp: In function ‘int main()’: example.cpp:8: error: ‘boost’ has not been declared example.cpp:8: error: ‘lambda’ is not a namespace-name example.cpp:8: error: expected namespace-name before ‘;’ token example.cpp:12: error: ‘_1’ was not declared in this scope