hi all, My OS is MAC OSX 10.4 with gcc 4.0 and Xcode 2.2. I have downloaded the tar file boost-1_33_1.tar.gz from boost.org. I need to port COM component on Windows to MAC OSX. I have problems in Compiling the tar file. Commands i use to compile are Step 0: cd /usr/local/boost-1_33_1/ Step 1: ./configure Step 2: make It gives error as /usr/bin/ld undefined Symbol, ld returned with status 1.And at last it shows .......Failed updating 6 targets ........ .......Skipped 6 targets............. ........Updated 766 targets.......... Step 3:make install After this i open project in Xcode and on build it gives hundreds of error as error in C linkage. Suggest me a proper solution.So, that i can compile boost on MAC OSX 10.4. Can also provide me some configuration setting need to be done prior to installation of boost for Darwin. If u need anymore information do mail me. -Gaurav