Building Python2.4 on recent Debian (Jessie, Stretch) fails on SSL

[naro]

I'm trying to build python 2.4 on Debian 9 Stretch but it fails on SSL build.

The most important part of the log is:

DPy_BUILD_CORE  -DUSE_SSL -I/usr/include -I/usr/include/openssl -c ./Modules/_ssl.c -o Modules/_ssl.o
./Modules/_ssl.c: In function 'newPySSLObject':
./Modules/_ssl.c:293:11: error: dereferencing pointer to incomplete type 'SSL {aka struct ssl_st}'
  self->ssl->debug = 1;
           ^~
./Modules/_ssl.c: In function 'PySSL_RAND_egd':
./Modules/_ssl.c:639:13: warning: implicit declaration of function 'RAND_egd' [-Wimplicit-function-declaration]
     bytes = RAND_egd(PyString_AS_STRING(arg));
             ^~~~~~~~
Makefile:1086: recipe for target 'Modules/_ssl.o' failed

I have tried to build Python outside of buildout.python as well and if I remove that line, as of https://github.com/python/cpython/commit/0dddf600d480108040557ebb24584ae86cf46a09 then the build fails on

libpython2.4.a(_ssl.o): In function `PySSL_RAND_egd':
./Python-2.4.6/./Modules/_ssl.c:637: undefined reference to `RAND_egd'

Full log as follows:

Unused options for buildout: 'pil-install-args'.
Updating opt.
opt: Running 
mkdir -p /home/zope/buildout.python/parts/opt && mkdir -p /home/zope/buildout.python/parts/opt/bin && mkdir -p /home/zope/buildout.python/parts/opt/man/man1
Updating virtualenv.
Updating readline.
Installing python-2.4-build.
python-2.4-build: Downloading https://www.python.org/ftp/python/2.4.6/Python-2.4.6.tar.bz2
python-2.4-build: Unpacking and configuring
python-2.4-build: Updating environment: CPPFLAGS=-I/usr/local/opt/openssl/include
python-2.4-build: Updating environment: LDFLAGS=-L/usr/local/opt/openssl/lib
patching file Modules/Setup.dist
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checking whether we are using the GNU C compiler... yes
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checking DYNLOADFILE... dynload_shlib.o
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checking getaddrinfo bug... good
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checking for build directories... done
configure: creating ./config.status
config.status: creating Makefile.pre
config.status: creating Modules/Setup.config
config.status: creating pyconfig.h
creating Setup
creating Setup.local
creating Makefile
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Modules/python.o Modules/python.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/acceler.o Parser/acceler.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/grammar1.o Parser/grammar1.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/listnode.o Parser/listnode.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/node.o Parser/node.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/parser.o Parser/parser.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/parsetok.o Parser/parsetok.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/bitset.o Parser/bitset.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/metagrammar.o Parser/metagrammar.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/firstsets.o Parser/firstsets.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/grammar.o Parser/grammar.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/pgen.o Parser/pgen.c
Parser/pgen.c: In function 'compile_atom':
Parser/pgen.c:279:6: warning: variable 'i' set but not used [-Wunused-but-set-variable]
  int i;
      ^
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/myreadline.o Parser/myreadline.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/tokenizer.o Parser/tokenizer.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/abstract.o Objects/abstract.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/boolobject.o Objects/boolobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/bufferobject.o Objects/bufferobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/cellobject.o Objects/cellobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/classobject.o Objects/classobject.c
In file included from ./Include/Python.h:77:0,
                 from Objects/classobject.c:4:
Objects/classobject.c: In function 'PyMethod_New':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Objects/classobject.c:2198:3: note: in expansion of macro 'PyObject_INIT'
   PyObject_INIT(im, &PyMethod_Type);
   ^~~~~~~~~~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/cobject.o Objects/cobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/complexobject.o Objects/complexobject.c
In file included from ./Include/Python.h:77:0,
                 from Objects/complexobject.c:8:
Objects/complexobject.c: In function 'PyComplex_FromCComplex':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Objects/complexobject.c:206:2: note: in expansion of macro 'PyObject_INIT'
  PyObject_INIT(op, &PyComplex_Type);
  ^~~~~~~~~~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/descrobject.o Objects/descrobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/enumobject.o Objects/enumobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/genobject.o Objects/genobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/fileobject.o Objects/fileobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/floatobject.o Objects/floatobject.c
In file included from ./Include/Python.h:77:0,
                 from Objects/floatobject.c:7:
Objects/floatobject.c: In function 'PyFloat_FromDouble':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Objects/floatobject.c:60:2: note: in expansion of macro 'PyObject_INIT'
  PyObject_INIT(op, &PyFloat_Type);
  ^~~~~~~~~~~~~
Objects/floatobject.c: In function 'float_richcompare':
Objects/floatobject.c:428:10: warning: variable 'mant' set but not used [-Wunused-but-set-variable]
   double mant;
          ^~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/frameobject.o Objects/frameobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/funcobject.o Objects/funcobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/intobject.o Objects/intobject.c
In file included from ./Include/Python.h:77:0,
                 from Objects/intobject.c:4:
Objects/intobject.c: In function 'PyInt_FromLong':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Objects/intobject.c:106:2: note: in expansion of macro 'PyObject_INIT'
  PyObject_INIT(v, &PyInt_Type);
  ^~~~~~~~~~~~~
Objects/intobject.c: In function '_PyInt_Init':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Objects/intobject.c:1067:3: note: in expansion of macro 'PyObject_INIT'
   PyObject_INIT(v, &PyInt_Type);
   ^~~~~~~~~~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/iterobject.o Objects/iterobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/listobject.o Objects/listobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/longobject.o Objects/longobject.c
Objects/longobject.c: In function 'long_float':
Objects/longobject.c:680:6: warning: 'e' may be used uninitialized in this function [-Wmaybe-uninitialized]
  x = ldexp(x, e * SHIFT);
      ^~~~~~~~~~~~~~~~~~~
Objects/longobject.c:667:6: note: 'e' was declared here
  int e;
      ^
Objects/longobject.c: In function 'long_true_divide':
Objects/longobject.c:2303:7: warning: 'bexp' may be used uninitialized in this function [-Wmaybe-uninitialized]
  aexp -= bexp;
       ^~
Objects/longobject.c:2303:7: warning: 'aexp' may be used uninitialized in this function [-Wmaybe-uninitialized]
Objects/longobject.c: In function 'PyLong_AsDouble':
Objects/longobject.c:680:6: warning: 'e' may be used uninitialized in this function [-Wmaybe-uninitialized]
  x = ldexp(x, e * SHIFT);
      ^~~~~~~~~~~~~~~~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/dictobject.o Objects/dictobject.c
Objects/dictobject.c: In function 'insertdict':
Objects/dictobject.c:398:25: warning: typedef 'lookupfunc' locally defined but not used [-Wunused-local-typedefs]
  typedef PyDictEntry *(*lookupfunc)(PyDictObject *, PyObject *, long);
                         ^~~~~~~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/methodobject.o Objects/methodobject.c
In file included from ./Include/Python.h:77:0,
                 from Objects/methodobject.c:4:
Objects/methodobject.c: In function 'PyCFunction_NewEx':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Objects/methodobject.c:16:3: note: in expansion of macro 'PyObject_INIT'
   PyObject_INIT(op, &PyCFunction_Type);
   ^~~~~~~~~~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/moduleobject.o Objects/moduleobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/object.o Objects/object.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/obmalloc.o Objects/obmalloc.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/rangeobject.o Objects/rangeobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/setobject.o Objects/setobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/sliceobject.o Objects/sliceobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/stringobject.o Objects/stringobject.c
In file included from ./Include/Python.h:77:0,
                 from Objects/stringobject.c:3:
Objects/stringobject.c: In function 'PyString_FromStringAndSize':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
./Include/objimpl.h:163:28: note: in expansion of macro 'PyObject_INIT'
  ( (op)->ob_size = (size), PyObject_INIT((op), (typeobj)) )
                            ^~~~~~~~~~~~~
Objects/stringobject.c:88:2: note: in expansion of macro 'PyObject_INIT_VAR'
  PyObject_INIT_VAR(op, &PyString_Type, size);
  ^~~~~~~~~~~~~~~~~
Objects/stringobject.c: In function 'PyString_FromString':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
./Include/objimpl.h:163:28: note: in expansion of macro 'PyObject_INIT'
  ( (op)->ob_size = (size), PyObject_INIT((op), (typeobj)) )
                            ^~~~~~~~~~~~~
Objects/stringobject.c:143:2: note: in expansion of macro 'PyObject_INIT_VAR'
  PyObject_INIT_VAR(op, &PyString_Type, size);
  ^~~~~~~~~~~~~~~~~
Objects/stringobject.c: In function 'string_concat':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
./Include/objimpl.h:163:28: note: in expansion of macro 'PyObject_INIT'
  ( (op)->ob_size = (size), PyObject_INIT((op), (typeobj)) )
                            ^~~~~~~~~~~~~
Objects/stringobject.c:938:2: note: in expansion of macro 'PyObject_INIT_VAR'
  PyObject_INIT_VAR(op, &PyString_Type, size);
  ^~~~~~~~~~~~~~~~~
Objects/stringobject.c: In function 'string_repeat':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
./Include/objimpl.h:163:28: note: in expansion of macro 'PyObject_INIT'
  ( (op)->ob_size = (size), PyObject_INIT((op), (typeobj)) )
                            ^~~~~~~~~~~~~
Objects/stringobject.c:981:2: note: in expansion of macro 'PyObject_INIT_VAR'
  PyObject_INIT_VAR(op, &PyString_Type, size);
  ^~~~~~~~~~~~~~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/structseq.o Objects/structseq.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/tupleobject.o Objects/tupleobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/typeobject.o Objects/typeobject.c
In file included from ./Include/Python.h:77:0,
                 from Objects/typeobject.c:3:
Objects/typeobject.c: In function 'PyType_GenericAlloc':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Objects/typeobject.c:466:3: note: in expansion of macro 'PyObject_INIT'
   PyObject_INIT(obj, type);
   ^~~~~~~~~~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/weakrefobject.o Objects/weakrefobject.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/unicodeobject.o Objects/unicodeobject.c
In file included from ./Include/Python.h:77:0,
                 from Objects/unicodeobject.c:39:
Objects/unicodeobject.c: In function '_PyUnicode_New':
./Include/objimpl.h:161:65: warning: right-hand operand of comma expression has no effect [-Wunused-value]
  ( (op)->ob_type = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Objects/unicodeobject.c:211:9: note: in expansion of macro 'PyObject_INIT'
         PyObject_INIT(unicode, &PyUnicode_Type);
         ^~~~~~~~~~~~~
Objects/unicodeobject.c: In function '_PyUnicode_DecodeUnicodeInternal':
Objects/unicodeobject.c:2334:16: warning: variable 'unimax' set but not used [-Wunused-but-set-variable]
     Py_UNICODE unimax;
                ^~~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Objects/unicodectype.o Objects/unicodectype.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/bltinmodule.o Python/bltinmodule.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/exceptions.o Python/exceptions.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/ceval.o Python/ceval.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/mysnprintf.o Python/mysnprintf.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/tokenizer_pgen.o Parser/tokenizer_pgen.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/printgrammar.o Parser/printgrammar.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Parser/pgenmain.o Parser/pgenmain.c
gcc -pthread -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -L/usr/local/opt/openssl/lib  Parser/acceler.o Parser/grammar1.o Parser/listnode.o Parser/node.o Parser/parser.o Parser/parsetok.o Parser/bitset.o Parser/metagrammar.o Parser/firstsets.o Parser/grammar.o Parser/pgen.o Objects/obmalloc.o Python/mysnprintf.o Parser/tokenizer_pgen.o Parser/printgrammar.o Parser/pgenmain.o -lpthread -ldl  -lutil -o Parser/pgen
Parser/pgen ./Grammar/Grammar ./Include/graminit.h ./Python/graminit.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/compile.o Python/compile.c
Python/compile.c:1104:1: warning: 'dump' defined but not used [-Wunused-function]
 dump(node *n, int pad, int depth)
 ^~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/codecs.o Python/codecs.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/errors.o Python/errors.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/frozen.o Python/frozen.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/frozenmain.o Python/frozenmain.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/future.o Python/future.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/getargs.o Python/getargs.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/getcompiler.o Python/getcompiler.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/getcopyright.o Python/getcopyright.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/getmtime.o Python/getmtime.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -DPLATFORM='"linux3"' -o Python/getplatform.o ./Python/getplatform.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/getversion.o Python/getversion.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/graminit.o Python/graminit.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/import.o Python/import.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -I. -o Python/importdl.o ./Python/importdl.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/marshal.o Python/marshal.c
Python/marshal.c: In function 'PyMarshal_ReadShortFromFile':
Python/marshal.c:350:4: warning: 'rf.end' may be used uninitialized in this function [-Wmaybe-uninitialized]
  x = r_byte(p);
    ^
Python/marshal.c:727:8: note: 'rf.end' was declared here
  RFILE rf;
        ^~
Python/marshal.c:350:4: warning: 'rf.ptr' may be used uninitialized in this function [-Wmaybe-uninitialized]
  x = r_byte(p);
    ^
Python/marshal.c:727:8: note: 'rf.ptr' was declared here
  RFILE rf;
        ^~
Python/marshal.c: In function 'PyMarshal_ReadLongFromFile':
Python/marshal.c:330:73: warning: 'rf.end' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define rs_byte(p) (((p)->ptr != (p)->end) ? (unsigned char)*(p)->ptr++ : EOF)
                                                                         ^
Python/marshal.c:736:8: note: 'rf.end' was declared here
  RFILE rf;
        ^~
Python/marshal.c:330:73: warning: 'rf.ptr' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define rs_byte(p) (((p)->ptr != (p)->end) ? (unsigned char)*(p)->ptr++ : EOF)
                                                                         ^
Python/marshal.c:736:8: note: 'rf.ptr' was declared here
  RFILE rf;
        ^~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/modsupport.o Python/modsupport.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/mystrtoul.o Python/mystrtoul.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/pyfpe.o Python/pyfpe.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/pystate.o Python/pystate.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/pythonrun.o Python/pythonrun.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/structmember.o Python/structmember.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/symtable.o Python/symtable.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/sysmodule.o Python/sysmodule.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/traceback.o Python/traceback.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/getopt.o Python/getopt.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/pystrtod.o Python/pystrtod.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/dynload_shlib.o Python/dynload_shlib.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Python/thread.o Python/thread.c
In file included from Python/thread.c:115:0:
Python/thread_pthread.h: In function 'PyThread_free_lock':
Python/thread_pthread.h:277:14: warning: variable 'error' set but not used [-Wunused-but-set-variable]
  int status, error = 0;
              ^~~~~
Python/thread_pthread.h: In function 'PyThread_acquire_lock':
Python/thread_pthread.h:307:14: warning: variable 'error' set but not used [-Wunused-but-set-variable]
  int status, error = 0;
              ^~~~~
Python/thread_pthread.h: In function 'PyThread_release_lock':
Python/thread_pthread.h:334:14: warning: variable 'error' set but not used [-Wunused-but-set-variable]
  int status, error = 0;
              ^~~~~
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Modules/config.o Modules/config.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -DPYTHONPATH='":plat-linux3:lib-tk"' \
    -DPREFIX='"/home/zope/buildout.python/parts/opt"' \
    -DEXEC_PREFIX='"/home/zope/buildout.python/parts/opt"' \
    -DVERSION='"2.4"' \
    -DVPATH='""' \
    -o Modules/getpath.o ./Modules/getpath.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Modules/main.o Modules/main.c
gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE -o Modules/gcmodule.o Modules/gcmodule.c
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -c ./Modules/threadmodule.c -o Modules/threadmodule.o
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -c ./Modules/signalmodule.c -o Modules/signalmodule.o
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -c ./Modules/posixmodule.c -o Modules/posixmodule.o
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -c ./Modules/errnomodule.c -o Modules/errnomodule.o
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -c ./Modules/pwdmodule.c -o Modules/pwdmodule.o
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -c ./Modules/_sre.c -o Modules/_sre.o
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -c ./Modules/_codecsmodule.c -o Modules/_codecsmodule.o
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -c ./Modules/zipimport.c -o Modules/zipimport.o
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -c ./Modules/symtablemodule.c -o Modules/symtablemodule.o
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -I. -I./Include  -DPy_BUILD_CORE  -DUSE_SSL -I/usr/include -I/usr/include/openssl -c ./Modules/_ssl.c -o Modules/_ssl.o
./Modules/_ssl.c: In function 'newPySSLObject':
./Modules/_ssl.c:293:11: error: dereferencing pointer to incomplete type 'SSL {aka struct ssl_st}'
  self->ssl->debug = 1;
           ^~
./Modules/_ssl.c: In function 'PySSL_RAND_egd':
./Modules/_ssl.c:639:13: warning: implicit declaration of function 'RAND_egd' [-Wimplicit-function-declaration]
     bytes = RAND_egd(PyString_AS_STRING(arg));
             ^~~~~~~~
Makefile:1086: recipe for target 'Modules/_ssl.o' failed
make: *** [Modules/_ssl.o] Error 1
python-2.4-build: cmmi failed: /tmp/tmp1MMQA4buildout-python-2.4-build
While:
  Installing python-2.4-build.

An internal error occured due to a bug in either zc.buildout or in a
recipe being used:
Traceback (most recent call last):
  File "/home/zope/buildout.python/eggs/zc.buildout-1.4.4-py2.7.egg/zc/buildout/buildout.py", line 1683, in main
    getattr(buildout, command)(args)
  File "/home/zope/buildout.python/eggs/zc.buildout-1.4.4-py2.7.egg/zc/buildout/buildout.py", line 555, in install
    installed_files = self[part]._call(recipe.install)
  File "/home/zope/buildout.python/eggs/zc.buildout-1.4.4-py2.7.egg/zc/buildout/buildout.py", line 1227, in _call
    return f()
  File "build/bdist.linux-x86_64/egg/zc/recipe/cmmi/__init__.py", line 113, in install
    self.build()
  File "/home/zope/buildout.python/eggs/collective.recipe.cmmi-0.5-py2.7.egg/collective/recipe/cmmi/__init__.py", line 24, in build
    result = Base.build(self)
  File "build/bdist.linux-x86_64/egg/zc/recipe/cmmi/__init__.py", line 196, in build
    self.cmmi(dest)
  File "/home/zope/buildout.python/eggs/collective.recipe.cmmi-0.5-py2.7.egg/collective/recipe/cmmi/__init__.py", line 61, in cmmi
    system("%s %s" % (make, make_options))
  File "build/bdist.linux-x86_64/egg/zc/recipe/cmmi/__init__.py", line 34, in system
    raise SystemError("Failed", c)
SystemError: ('Failed', 'make ')

[mjpieters]

Python 2.4 (or 2.5, 2.6 and 3.2-3.4 can’t be built with OpenSSL 1.1; you’d have to install OpenSSL 1.0.x somewhere and configure your buildout to use that when building these older Python versions.

[mjpieters]

That said, this is exactly the error that causes the 16.04 and 18.04 builds for 2.4 and 3.2 to fail, whereas the 2.5 and 3.3 builds work fine. I'm investigating this now.

[mjpieters]

Fixed by #92