GNAT gpl 2007 implements Ada 2005 standard matrix libraries interfacing LAPACK/BLAS fortran libraries. So we need to add virtual/blas ΠΈ virtual/lapack in RDEPEND. See comments in GNAT file a-ngrear.adb It's impossible to successfuly link a program that use this math library if lapack/blas not installed. Here is simple test use two procedures from matrix library. To compile run: gnatmake gnat_test -largs -lgnala -llapack -lblas It seems gnat works with both atlas and reference implementations of blas/lapack. At least I used my own program with matrix solving and multiplications on two computers where different (atlas/reference) implementation were installed. libgnala.a is part of gnat gpl 2007. Please assign this bug to ada@gentoo.org
Created attachment 123386 [details] simple test
Reassigned. Will try to deal with it soon..
Added virtuals to RDEPEND, sorry it took so long..
