gh-90005: Port readline and curses to PY_STDLIB_MOD (GH-94452)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@protonmail.com>

1 files changed, 3 insertions, 143 deletions

diff --git a/setup.py b/setup.py
index cc11ded..2edcb08 100644
--- a/setup.py
+++ b/setup.py
@@ -1015,149 +1015,9 @@ class PyBuildExt(build_ext):
         ))
 
     def detect_readline_curses(self):
-        # readline
-        readline_termcap_library = ""
-        curses_library = ""
-        # Cannot use os.popen here in py3k.
-        tmpfile = os.path.join(self.build_temp, 'readline_termcap_lib')
-        if not os.path.exists(self.build_temp):
-            os.makedirs(self.build_temp)
-        # Determine if readline is already linked against curses or tinfo.
-        if sysconfig.get_config_var('HAVE_LIBREADLINE'):
-            if sysconfig.get_config_var('WITH_EDITLINE'):
-                readline_lib = 'edit'
-            else:
-                readline_lib = 'readline'
-            do_readline = self.compiler.find_library_file(self.lib_dirs,
-                readline_lib)
-            if CROSS_COMPILING:
-                ret = run_command("%s -d %s | grep '(NEEDED)' > %s"
-                                % (sysconfig.get_config_var('READELF'),
-                                   do_readline, tmpfile))
-            elif find_executable('ldd'):
-                ret = run_command("ldd %s > %s" % (do_readline, tmpfile))
-            else:
-                ret = 1
-            if ret == 0:
-                with open(tmpfile) as fp:
-                    for ln in fp:
-                        if 'curses' in ln:
-                            readline_termcap_library = re.sub(
-                                r'.*lib(n?cursesw?)\.so.*', r'\1', ln
-                            ).rstrip()
-                            break
-                        # termcap interface split out from ncurses
-                        if 'tinfo' in ln:
-                            readline_termcap_library = 'tinfo'
-                            break
-            if os.path.exists(tmpfile):
-                os.unlink(tmpfile)
-        else:
-            do_readline = False
-        # Issue 7384: If readline is already linked against curses,
-        # use the same library for the readline and curses modules.
-        if 'curses' in readline_termcap_library:
-            curses_library = readline_termcap_library
-        elif self.compiler.find_library_file(self.lib_dirs, 'ncursesw'):
-            curses_library = 'ncursesw'
-        # Issue 36210: OSS provided ncurses does not link on AIX
-        # Use IBM supplied 'curses' for successful build of _curses
-        elif AIX and self.compiler.find_library_file(self.lib_dirs, 'curses'):
-            curses_library = 'curses'
-        elif self.compiler.find_library_file(self.lib_dirs, 'ncurses'):
-            curses_library = 'ncurses'
-        elif self.compiler.find_library_file(self.lib_dirs, 'curses'):
-            curses_library = 'curses'
-
-        if MACOS:
-            os_release = int(os.uname()[2].split('.')[0])
-            dep_target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
-            if (dep_target and
-                    (tuple(int(n) for n in dep_target.split('.')[0:2])
-                        < (10, 5) ) ):
-                os_release = 8
-            if os_release < 9:
-                # MacOSX 10.4 has a broken readline. Don't try to build
-                # the readline module unless the user has installed a fixed
-                # readline package
-                if find_file('readline/rlconf.h', self.inc_dirs, []) is None:
-                    do_readline = False
-        if do_readline:
-            readline_libs = [readline_lib]
-            if readline_termcap_library:
-                pass # Issue 7384: Already linked against curses or tinfo.
-            elif curses_library:
-                readline_libs.append(curses_library)
-            elif self.compiler.find_library_file(self.lib_dirs +
-                                                     ['/usr/lib/termcap'],
-                                                     'termcap'):
-                readline_libs.append('termcap')
-            self.add(Extension('readline', ['readline.c'],
-                               library_dirs=['/usr/lib/termcap'],
-                               libraries=readline_libs))
-        else:
-            self.missing.append('readline')
-
-        # Curses support, requiring the System V version of curses, often
-        # provided by the ncurses library.
-        curses_defines = []
-        curses_includes = []
-        panel_library = 'panel'
-        if curses_library == 'ncursesw':
-            curses_defines.append(('HAVE_NCURSESW', '1'))
-            if not CROSS_COMPILING:
-                curses_includes.append('/usr/include/ncursesw')
-            # Bug 1464056: If _curses.so links with ncursesw,
-            # _curses_panel.so must link with panelw.
-            panel_library = 'panelw'
-            if MACOS:
-                # On OS X, there is no separate /usr/lib/libncursesw nor
-                # libpanelw.  If we are here, we found a locally-supplied
-                # version of libncursesw.  There should also be a
-                # libpanelw.  _XOPEN_SOURCE defines are usually excluded
-                # for OS X but we need _XOPEN_SOURCE_EXTENDED here for
-                # ncurses wide char support
-                curses_defines.append(('_XOPEN_SOURCE_EXTENDED', '1'))
-        elif MACOS and curses_library == 'ncurses':
-            # Building with the system-suppied combined libncurses/libpanel
-            curses_defines.append(('HAVE_NCURSESW', '1'))
-            curses_defines.append(('_XOPEN_SOURCE_EXTENDED', '1'))
-
-        curses_enabled = True
-        if curses_library.startswith('ncurses'):
-            curses_libs = [curses_library]
-            self.add(Extension('_curses', ['_cursesmodule.c'],
-                               include_dirs=curses_includes,
-                               define_macros=curses_defines,
-                               libraries=curses_libs))
-        elif curses_library == 'curses' and not MACOS:
-                # OSX has an old Berkeley curses, not good enough for
-                # the _curses module.
-            if (self.compiler.find_library_file(self.lib_dirs, 'terminfo')):
-                curses_libs = ['curses', 'terminfo']
-            elif (self.compiler.find_library_file(self.lib_dirs, 'termcap')):
-                curses_libs = ['curses', 'termcap']
-            else:
-                curses_libs = ['curses']
-
-            self.add(Extension('_curses', ['_cursesmodule.c'],
-                               define_macros=curses_defines,
-                               libraries=curses_libs))
-        else:
-            curses_enabled = False
-            self.missing.append('_curses')
-
-        # If the curses module is enabled, check for the panel module
-        # _curses_panel needs some form of ncurses
-        skip_curses_panel = True if AIX else False
-        if (curses_enabled and not skip_curses_panel and
-                self.compiler.find_library_file(self.lib_dirs, panel_library)):
-            self.add(Extension('_curses_panel', ['_curses_panel.c'],
-                           include_dirs=curses_includes,
-                           define_macros=curses_defines,
-                           libraries=[panel_library, *curses_libs]))
-        elif not skip_curses_panel:
-            self.missing.append('_curses_panel')
+        self.addext(Extension('readline', ['readline.c']))
+        self.addext(Extension('_curses', ['_cursesmodule.c']))
+        self.addext(Extension('_curses_panel', ['_curses_panel.c']))
 
     def detect_crypt(self):
         self.addext(Extension('_crypt', ['_cryptmodule.c']))