[HECnet] building simh

Dave, yes I know you did but the terms static and dynamic library just didn't register. Are .so and .a libraries interchangeable for the linker, i.e. would this have worked too: NETWORK_OPT = -DUSE_NETWORK -isystem /usr/local/include /usr/lib/libpcap.so Hans -----Oorspronkelijk bericht----- Van: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] Namens Dave McGuire Verzonden: dinsdag, april 2012 20:18 Aan: hecnet at Update.UU.SE Onderwerp: Re: [HECnet] building simh On 04/10/2012 02:12 PM, H Vlems wrote: Is it possible to explain what the magic does? More precisely: what is the difference between an .a and an .so library? I detailed this a few posts ago. .a is a static library, .so is a shared library. How on earth does -lpcap point to /usr/lib? -lpcap tells the linker to look in every directory in the library search path to find either libpcap.a or libpcap.so. This library lives in /usr/lib on most systems, but the simh makefile hard-coding that path (and hard-coding it to only find the static library) is a big mistake. -Dave If the answers are too lengthy or are too complex for an old Algol programmer then say so ;-) Hans -----Oorspronkelijk bericht----- Van: owner-hecnet at Update.UU.SE [mailto:owner-hecnet at Update.UU.SE] Namens Oleg Safiullin Verzonden: maandag, april 2012 8:04 Aan: hecnet at Update.UU.SE Onderwerp: Re: [HECnet] building simh On 04/09/2012 12:33 PM, hvlems at zonnet.nl wrote: Dave, I figured that out too. My system doesn't have a libpcap.a file! If I know how to build one then all would be fine. To build SimH manually wothout libpcap.a (but with libpcap.so.*) you should edit `makefile' and replace line NETWORK_OPT = -DUSE_NETWORK -isystem /usr/local/include /usr/local/lib/libpcap.a with NETWORK_OPT = -DUSE_NETWORK -isystem /usr/local/include -lpcap and then do mkdir BIN make USE_NETWORK=yes -- Dave McGuire, AK4HZ New Kensington, PA