community/py-augeas: fix crash on mips*

On mips* dynamically imported symbol (here 'free') must be looked
up in its explicitly dlopen()ed module (here 'None' which means
the standard C library in cffi world). This change does not break
x86_64 at least and actually follows the cffi docs at
cdef.html#ffi-dlopen-loading-libraries-in-abi-mode

1 files changed, 32 insertions, 0 deletions

diff --git a/community/py-augeas/dlopen-libc-explicitly.patch b/community/py-augeas/dlopen-libc-explicitly.patch
new file mode 100644
index 00000000000..c7aa05a2b80
--- /dev/null
+++ b/community/py-augeas/dlopen-libc-explicitly.patch
@@ -0,0 +1,32 @@
+--- a/augeas/__init__.py
++++ b/augeas/__init__.py
+@@ -42,7 +42,7 @@
+ 
+ import cffi
+ import types
+-from augeas.ffi import ffi, lib
++from augeas.ffi import ffi, lib, c89
+ 
+ PY3 = _pyver >= (3,)
+ AUGENC = 'utf8'
+@@ -421,8 +421,8 @@
+                 # Create a python string and append it to our matches list
+                 item = ffi.string(array[i])
+                 matches.append(dec(item))
+-                lib.free(array[i])
+-        lib.free(array)
++                c89.free(array[i])
++        c89.free(array)
+         return matches
+ 
+     def span(self, path):
+--- a/augeas/ffi.py
++++ b/augeas/ffi.py
+@@ -40,6 +40,7 @@
+ """)
+ 
+ lib = ffi.dlopen("augeas")
++c89 = ffi.dlopen(None)
+ 
+ if __name__ == "__main__":
+     ffi.compile(verbose=True)