On Wed, Aug 25, 2004 at 12:45:36AM +1000, Rocci wrote: > Hi folks, > I'm trying to compile source for the wpa supplicant but the linker > complains about ssl. > I've got openssl installed (deb package) and I'm not sure exactly which > library it's looking for. > Ideas/suggestions/clues that may point this newb to the right direction > would be greatly appreciated.
Short answer: Building programs typically requires the 'dev' version of the necessary packages to be installed. In this instance, you need to install libssl-dev. Long answer: The -l flag is essentially a shorthand for "look for lib<whatever>.so || lib<whatever>.a in all the configured library directories". "Configured library directories" are whatever has been configured in your linker, plus the arguments to any -L options you might have. So, putting -lssl on the linker command line will make the linker look for (for instance) /lib/libssl.so, /lib/libssl.a, /usr/lib/libssl.so, /usr/lib/libssl.a, /usr/lib/i586-linux/libssl.so, /usr/lib/i586-linux/libssl.a, /usr/local/lib/libssl.so, /usr/local/lib/libssl.a, and so forth. (The system may start looking for .a (static libraries) only after it's finished looking for .so's in all places, I can't really remember). So, since the linker is looking for a file called libssl.so in one of the usual library directories, you can wander over to http://packages.debian.org/, scroll to the bottom ("Search the contents of packages"), type 'libssl.so' in the keyword box, pick your distribution, and click 'Search'. That'll tell you that the libssl-dev package contains the file usr/lib/libssl.so, which solves your problem and makes everything cool. Wasn't the short answer easier... <grin> - Matt
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