tests: For unix ffi float test, add libm.so.6 to library search list.

dpgeorge · dpgeorge · commit 936e25b164d8 · 2015-08-25T18:14:53.000+01:00
Latest Arch Linux doesn't have libm.so as a proper shared object and so
we need to load libm.so.6.
diff --git a/tests/unix/ffi_float.py b/tests/unix/ffi_float.py
@@ -26,7 +26,7 @@ def ffi_open(names):
 print('%.6f' % strtod('1.23', None))
 
 # test passing double and float args
-libm = ffi_open(('libm.so', 'libc.so.0', 'libc.so.6', 'libc.dylib'))
+libm = ffi_open(('libm.so', 'libm.so.6', 'libc.so.0', 'libc.so.6', 'libc.dylib'))
 tgamma = libm.func('d', 'tgamma', 'd')
 tgammaf = libm.func('f', 'tgammaf', 'f')
 for fun in (tgamma, tgammaf):
