Hi, I had posted the following on comp.compilers group and somebody helpfully pointed me to this list. I am trying to replace the standard C and C++ libraries which comes with a Linux distro with our own(licensed from a 3rd party vendor). We will be providing the lower level layer which the C/C++ library uses(i.e. the system calls). What i would like to do is replace the standard and the runtime libraries which come with gcc with our own. I am a newbie in this and hence have some basic questions; 1. What is the exact difference between the C runtime and the C standard libraries i.e where does one end and the other begin; specifically w.r.t gcc? While i am going through a lot of text(both online and book form) i am not 100% clear on this. 2. In a gcc distribution where exactly does the compiler specific magic lie within the runtime libraries? I might have to modify gcc to use only my libraries but where and how do i begin? Currently i have built the 3rd party vendor's library and am linking with it but for some symbols i still have to go to the gcc runtimes. I am running "nm" and extracting the object modules using "ar" for all the unresolved symbols; which seems to be a roundabout way of doing things. What i would like is to understand the structure of how gcc interfaces with its runtimes. Would appreciate any and all help on this. Pointers to other articles/links/books will also be very welcome. Thanks Ram
