- Issue #3754: Use readelf instead of ldd for the cross build readline check
diff --git a/setup.py b/setup.py
index 19e6bc3..e26f083 100644
--- a/setup.py
+++ b/setup.py
@@ -590,13 +590,20 @@
do_readline = self.compiler.find_library_file(lib_dirs, '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 do_readline and find_executable('ldd'):
- # 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)
- ret = os.system("ldd %s > %s" % (do_readline, tmpfile))
+ if do_readline:
+ if cross_compiling:
+ ret = os.system("%s -d %s | grep '(NEEDED)' > %s" \
+ % (sysconfig.get_config_var('READELF'),
+ do_readline, tmpfile))
+ elif find_executable('ldd'):
+ ret = os.system("ldd %s > %s" % (do_readline, tmpfile))
+ else:
+ ret = 256
if ret >> 8 == 0:
with open(tmpfile) as fp:
for ln in fp: