Set Gnu fortran type based on platform.

mesonbuild/backend/ninjabackend.py

@@ -525,7 +525,6 @@ int dummy;
                 srcabs = os.path.join(self.environment.get_source_dir(), m.get_source_subdir(), f)
                 dstabs = os.path.join(subdir, os.path.split(f)[1] + '.gz')
                 i = [srcabs, dstabs]
-                print(i)
                 d.man.append(i)
 
     def generate_data_install(self, d):

mesonbuild/environment.py

@@ -309,7 +309,13 @@ class Environment():
                     version = vmatch.group(0)
 
                 if 'GNU Fortran' in out:
-                    return GnuFortranCompiler([compiler], version, GCC_STANDARD, is_cross, exe_wrap)
+                    if mesonlib.is_osx():
+                        gcctype = GCC_OSX
+                    elif mesonlib.is_windows():
+                        gcctype = GCC_MINGW
+                    else:
+                        gcctype = GCC_STANDARD
+                    return GnuFortranCompiler([compiler], version, gcctype, is_cross, exe_wrap)
 
                 if 'G95' in out:
                     return G95FortranCompiler([compiler], version, is_cross, exe_wrap)