ffb: prevent the architecture to be always "x86_64" (#17093)

var/spack/repos/builtin/packages/ffb/package.py

@@ -107,6 +107,10 @@ def edit(self, spec, prefix):
                 m.filter(r'-lmpi_f77', '')
         os.chmod(makeall, 0o755)
 
+        editfile = join_path('lib', 'src', 'Makeall')
+        m = FileFilter(editfile)
+        m.filter(r'x86_64-linux', '{0}-linux'.format(spec.target.family))
+
         editfile = join_path('lib', 'src', 'REVOCAP_Refiner-0.4.3', 'OPTIONS')
         m = FileFilter(editfile)
         m.filter(r'ARCH\s*=.*$', 'ARCH= $(shell arch)-linux')