Use the GNU “unused” attribute (can be replaced by the standardized attribute
when we move to C23).

(cherry picked from commit 3cf782f2f35fec9c53608f796b20e4c1823a9383)

(cherry picked from commit 9e07351480bdb14039a5958d0fa69c6070cc0981)

(cherry picked from commit bf6ed8dc6b6cc58f03fc22ec2fdefe28629f183f)

(cherry picked from commit bc16f13e925a156ebaf72ceb5d0cdfa807ea5995)

(cherry picked from commit 8b401148abdb7ea261d22d71710645b20e5cc4f3)

(cherry picked from commit 03ce6c37b400f5004a36e0a3104d92bd3d051dbf)

changed dw_ascii.* and dw_array.h to use PRECISION. changed dw_elliptical.* to have clearer use of truncated gaussian. changes to dw_elliptical_test.c
the changes in dw_ascii.* can break existing code
(cherry picked from commit 7d5ceba935226e191d2aa355e78a0a23d8a922c1)

(cherry picked from commit f977618b9da25a83daaf1bc1eb09cf6a71cd2c32)

(cherry picked from commit 4ccee1f926c0e0b59d112d04dcef6dd0e9b64baf)

(cherry picked from commit 9db5ba7a4483581a203df01888367897ec4369f9)

(cherry picked from commit 20e23a5850f7af46af95e8cd4df8ef92f0a32f9f)

(cherry picked from commit a4c5e02beed161490468af4af7a06a3697ed107a)

(cherry picked from commit fc074f98b74acb38d66dcd6e32ee0a5836e930e2)

(cherry picked from commit aeb734eeeb670e284bb8f0a0bd277530a41bfd4d)

(cherry picked from commit 5e6d54bc18ce061b84ce7d23812b0c2430f50b07)

(cherry picked from commit e47cee2be5e7785f86d75ad3d72af8db87794088)

(cherry picked from commit f09f6f867b0d6539e12cc6ace337dfdf72364655)

(cherry picked from commit c464850861847cff924076829c7f81dbbd14a282)

(cherry picked from commit e1889d622b02b0776564f35f943baa65a9c80a3c)

(cherry picked from commit dd90f6929829322648e0ba0b76b322a1e46dfc15)

(cherry picked from commit 390bb6746ea7c9a1f2eea11d3b420661789c9ebb)

changed int to blas_int or lapack_int so blas/lapack calls will work in dynare. Generalized eigenvalues not yet fully done.

(cherry picked from commit 7663b6d5488896126a95e697cbf843277de9f1ac)

(cherry picked from commit 38c403021ab2e23cfe4a90e138ff347ab6d3c8ef)

(cherry picked from commit 7db7df5828a9a1a062cb43748359556652889d72)

make all blas/lapack macro changes with dynblas.h and dynlapack.h to provide support for different versions of Matlab
(cherry picked from commit b199519018d6899b71bd77ae605a89d0bd6204e2)

(cherry picked from commit 8cabcb1891e5778d368f5de1a27e53b268e9de4e)

(cherry picked from commit 573b88122d5fd1bb2b993d7e049f59d0a6cb504c)

(cherry picked from commit a5aba7deaab09a9a1077aee86f05d9c095be51af)

error_dw.c: bug fixes - replaced close with fclose and ensured functions return a value when required
(cherry picked from commit 0e178d5e8737794acc2b2ca1b101ddeee9e2c13e)

(cherry picked from commit 5c0b0850fa471f76f482245bf9a27e8ed1c68607)

(cherry picked from commit 070e5671997311407145835655f01c2188153ab4)