BLD, ENH: Add RPATH support for AIX (numpy#16710)

EGuesnet · charris · charris · commit cb440a33653d · 2020-07-07T18:37:23.000-06:00
* ENH: Add RPATH support for AIX

* ENH: Rewrite function returning RPATH

* MAINT: Use f-strings for clarity.

Co-authored-by: Charles Harris &lt;charlesr.harris@gmail.com&gt;
diff --git a/numpy/distutils/fcompiler/gnu.py b/numpy/distutils/fcompiler/gnu.py
@@ -253,15 +253,20 @@ def get_flags_arch(self):
         return []
 
     def runtime_library_dir_option(self, dir):
-        if sys.platform[:3] == 'aix' or sys.platform == 'win32':
-            # Linux/Solaris/Unix support RPATH, Windows and AIX do not
+        if sys.platform == 'win32':
+            # Linux/Solaris/Unix support RPATH, Windows does not
             raise NotImplementedError
 
         # TODO: could use -Xlinker here, if it's supported
         assert "," not in dir
 
-        sep = ',' if sys.platform == 'darwin' else '='
-        return '-Wl,-rpath%s%s' % (sep, dir)
+        if sys.platform == 'darwin':
+            return f'-Wl,-rpath,{dir}'
+        elif sys.platform[:3] == 'aix':
+            # AIX RPATH is called LIBPATH
+            return f'-Wl,-blibpath:{dir}'
+        else:
+            return f'-Wl,-rpath={dir}'
 
 
 class Gnu95FCompiler(GnuFCompiler):
