When -O2 from hardening does not redefine -O3 from CMake, the build fails with:
src/qpid/broker/SelectorExpression.cpp: In member function ‘qpid::broker::Expression* qpid::broker::Parse::orExpression(qpid::broker::Tokeniser&)’:
src/qpid/broker/SelectorExpression.cpp:1041:13: error: ‘*((void*)& s +17)’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
if (s[1]=='b' || s[1]=='B') {
The compilation broke due to the flag `-Werror=int-in-bool-context`
which caused several compilation errors with GCC v7. Disabling this
warning manually with `-Wno-error` in `NIX_CFLAGS_COMPILE` should be
fine.
This package experienced several radical changes as the entire python
build in `$src/management/python` was broken since the given Python
interpreter missed several needed modules (including
`pythonPackages.qpid-python`). As the CMake build tried to invoke the
affected `setup.py` manually and patched the shebangs with `disutil` and
caused non-functional executables, I split the package up into two
parts, the actual `qpid-cpp` lib and the Python module that will be
composed using `buildEnv`.
Furthermore I added myself as maintainer for the package as the diff
became quite huge and we should have more folks available to maintain
this.
See https://hydra.nixos.org/build/71519082/log
See tickets #36453 and #31747
