Use distro specific macros to hide some distribution differences.

Signed-off-by: Egbert Eich <eich@suse.com>

rocsolver.spec

@@ -109,9 +109,9 @@ BuildRequires:  pkgconfig(libzstd)
 %endif
 
 %if %{with test}
+BuildRequires:  gcc-fortran
 
 %if 0%{?suse_version}
-BuildRequires:  gcc-fortran
 BuildRequires:  gtest
 BuildRequires:  blas-devel-static
 BuildRequires:  lapack-devel-static
@@ -123,7 +123,6 @@ BuildRequires:  lapack-devel-static
 #     "/usr/lib64/libblas.so.3.12.0"
 
 %else
-BuildRequires:  gcc-gfortran
 BuildRequires:  gtest-devel
 BuildRequires:  blas-static
 BuildRequires:  lapack-static
@@ -283,7 +282,6 @@ fi
 
 %changelog
 * Tue Jun 17 2025 Egbert Eich <eich@suse.com> - 6.4.0-4
-- Minor restructuring of distro specific parts
 - Use distro specific macros to hide some distribution differences.
 
 * Thu Jun 12 2025 Tom Rix <Tom.Rix@amd.com> - 6.4.0-3