[issue29380] A lot of warning while executing make install

[Zachary Ware]

Zachary Ware added the comment:

Building _ctypes with the bundled copy of libffi is deprecated since Python 
3.6, and is not possible in 3.7. If you need the ctypes module, please install 
libffi separately and make sure the Python build process can find it. If you 
build libffi yourself, please report any warnings at github.com/libffi/libffi.

--
nosy: +zach.ware
resolution:  -> third party
stage:  -> resolved
status: open -> closed

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[issue29380] A lot of warning while executing make install

[Eric V. Smith]

Eric V. Smith added the comment:

Can you give us your platform, platform version, compiler, and compiler 
version? Also, the entire output of "make install" (or whatever make command 
you're running).

Thanks.

--
nosy: +eric.smith

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[issue29380] A lot of warning while executing make install

[Mirko Tebaldi (Realtebo)]

New submission from Mirko Tebaldi (Realtebo):

/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c: In function 
'classify_argument':
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c:195:18: warning: 
suggest braces around empty body in an 'else' statement [-Wempty-body]
FFI_ASSERT (0);
  ^
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c:224:16: warning: 
comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i = 0; i < words; i++)
^
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c:245:20: warning: 
comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i = 0; i < num; i++)
^
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c:264:20: warning: 
comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i = 1; i < words; i++)
^
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c:270:16: warning: 
comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i = 0; i < words; i++)
^
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c: In function 
'examine_argument':
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c:323:17: warning: 
comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (i = 0; i < n; ++i)
 ^
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c: In function 
'ffi_call':
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c:484:18: warning: 
comparison between signed and unsigned integer expressions [-Wsign-compare]
for (j = 0; j < n; j++, a += 8, size -= 8)
  ^
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c: In function 
'ffi_closure_unix64_inner':
/usr/src/Python-3.6.0/Modules/_ctypes/libffi/src/x86/ffi64.c:659:18: warning: 
comparison between signed and unsigned integer expressions [-Wsign-compare]
for (j = 0; j < n; j++, a += 8)
  ^

--
messages: 286355
nosy: Mirko Tebaldi (Realtebo)
priority: normal
severity: normal
status: open
title: A lot of warning while executing make install
type: compile error
versions: Python 3.6

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