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* closes bpo-34585: Don't do runtime test to get float byte order. (GH-9085)Ross Burton2018-09-191-0/+83
| | | | | | | Currently configure.ac uses AC_RUN_IFELSE to determine the byte order of doubles, but this silently fails under cross compilation and Python doesn't do floats properly. Instead, steal a macro from autoconf-archive which compiles code using magic doubles (which encode to ASCII) and grep for the representation in the binary. RFC because this doesn't yet handle the weird ancient ARMv4 OABI 'mixed-endian' encoding properly. This encoding is ancient and I don't believe the union of "Python 3.8 users" and "OABI users" has anything in. Should the support for this just be dropped too? Alternatively, someone will need to find an OABI toolchain to verify the encoding of the magic double.
* bpo-32598: Use autoconf to detect usable OpenSSL (#5242)Christian Heimes2018-01-201-0/+124
Add https://www.gnu.org/software/autoconf-archive/ax_check_openssl.html to auto-detect compiler flags, linker flags and libraries to compile OpenSSL extensions. The M4 macro uses pkg-config and falls back to manual detection. Add autoconf magic to detect usable X509_VERIFY_PARAM_set1_host() and related functions. Refactor setup.py to use new config vars to compile _ssl and _hashlib modules. Signed-off-by: Christian Heimes <christian@python.org>