Merge pull request #1154 from mgorny/lapack64-pc

fix library names in `lapack64.pc`

Author: langou

lapack.pc.in

@@ -5,5 +5,5 @@ Name: LAPACK
 Description: FORTRAN reference implementation of LAPACK Linear Algebra PACKage
 Version: @LAPACK_VERSION@
 URL: http://www.netlib.org/lapack/
-Libs: -L${libdir} -llapack
-Requires.private: blas
+Libs: -L${libdir} -l@LAPACKLIB@
+Requires.private: @BLASLIB@