If a stable version fails to build within a modern environment that has everything installed, then according to my understanding 

THERE IS A BUG

That is to say, the current resolution, "not a bug", does not match with my understanding of this world. The whole console output is at the attached file, but here's an excerpt:

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s2@linux-0fiz:~/m_local/bin_p/Python/kompil/Python-3.5.2$ time nice -n20 ./configure --prefix=/home/ts2/m_local/bin_p/Python/v_3_5_2 --with-address-sanitizer --with-valgrind --disable-ipv6
configure: loading site script /usr/share/site/x86_64-unknown-linux-gnu
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking for --enable-universalsdk... no
checking for --with-universal-archs... no
checking MACHDEP... linux
checking for --without-gcc... no
checking for --with-icc... no
checking for gcc... clang
checking whether the C compiler works... yes
...
blablabla
...
real	0m32.365s
user	0m11.880s
sys	0m12.194s
ts2@linux-0fiz:~/m_local/bin_p/Python/kompil/Python-3.5.2$ time nice -n20 make
clang -pthread -c -fsanitize=address -fno-omit-frame-pointer  -Wno-unused-result -Wsign-compare -Wunreachable-code -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -mtune=native -ftree-vectorize   -mtune=native -ftree-vectorize   -Werror=declaration-after-statement   -I. -IInclude -I./Include    -DPy_BUILD_CORE -o Programs/python.o ./Programs/python.c
In file included from ./Programs/python.c:3:
In file included from Include/Python.h:50:
Include/pyport.h:261:13: error: "This platform's pyconfig.h needs to define PY_FORMAT_LONG_LONG"
#           error "This platform's pyconfig.h needs to define PY_FORMAT_LONG_LONG"
            ^
1 error generated.
Makefile:773: recipe for target 'Programs/python.o' failed
make: *** [Programs/python.o] Error 1

real	0m0.170s
user	0m0.083s
sys	0m0.022s
ts2@linux-0fiz:~/m_local/bin_p/Python/kompil/Python-3.5.2$ uname -a
Linux linux-0fiz 3.16.7-35-desktop #1 SMP PREEMPT Sun Feb 7 17:32:21 UTC 2016 (832c776) x86_64 x86_64 x86_64 GNU/Linux
ts2@linux-0fiz:~/m_local/bin_p/Python/kompil/Python-3.5.2$ date
Thu Aug  4 06:03:19 EEST 2016
ts2@linux-0fiz:~/m_local/bin_p/Python/kompil/Python-3.5.2$
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