> [...] those are not include but rather > missing src file errors, e.g. undefined reference to `gsl_rng_get’
You don't give a transcript of the error (hint...), so I'm not sure, but here are some thoughts: 1. You got farther than before, since now you have a link error instead of a compile error. 2. You have -I stuff in LDFLAGS, which doesn't do anything - you'd want -L instead, something like -L/crosscompilearea/gsl-2.7.1/lib/otherlibprefixes 3. I would recommend using LIBRARY_PATH instead, and having in there the full path to where you have the libgslsomething.so and libgslsomething.a files. 4. Apart from having a not-belonging -I option in LDFLAGS (it should be in CFLAGS and CXXFLAGS), you also seem to have put unneeded quotes, and the first of them is a non-ascii double quote. I don't know if this causes confusion, but it might. Write to me privately and we can have a phone call or share screens in a jitsi call.
