- Example CA certificates that are used for self-signed client certificates
need to include the Key Usage parameter.
- Python3.13 changed the default context of the SSL context that is
generated using ssl.create_default_context() by enabling the VERIFY_X509_STRICT
flag by default
For the Linux target, we currently attempt to fallback to older C/CXX
lagnuage standards in the __build_set_lang_version() function. The
language standard support is checked using CMake's language-specific
functions, such as check_c_compiler_flag(). These functions require the
language to be enabled[1] in CMake beforehand, which is done by calling
project() or by enabling the languages later with enable_language(). At
present, we use enable_language() to enable C and CXX languages in
CMake, allowing us to set the standard early, before invoking project().
However, newer CMake versions (>3.29) issue a warning[2] if
enable_language() is called before project(), as noted in CMP0165[3].
It should generally be acceptable to call __build_set_lang_version()
after __project(), but doing so would alter the behavior of the
COMPILE_OPTIONS also for non-Linux targets. Currently, users can
add to COMPILE_OPTIONS even before calling project() in the project's
CMakeLists.txt and the options will be in the desired order. In other
words, appending to COMPILE_OPTIONS can occur either before or after
calling project() in the project's CMakeLists.txt, with the outcome
remaining consistent. This means the user's settings will appear later
and take priority. However, if __build_set_lang_version() is called
after __project(), the user's COMPILE_OPTIONS settings would be
overridden if set before calling project(). Our documentation[4] explicitly
states that COMPILE_OPTIONS and similar properties should be modified
using idf_build_set_property() after calling project() to prevent
default values from overwriting them.
Even with this guidance, some existing components that modify
COMPILE_OPTIONS before invoking project() might be impacted by this
change. Therefore, separate the language standard settings for non-Linux
and Linux targets. For non-Linux targets, these settings are applied in
__build_set_default_build_specifications(), maintaining the current
behavior. For the Linux target, the language standard is set with
__linux_build_set_lang_version() after calling __project(), ensuring the
languages are already enabled in CMake and no warning is issued. Since the Linux
target is still in preview, this approach should be acceptable,
especially with the existing documentation[4].
Closes https://github.com/espressif/esp-idf/issues/15488
[1] https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#languages
[2] https://gitlab.kitware.com/cmake/cmake/-/merge_requests/9396
[3] https://cmake.org/cmake/help/latest/policy/CMP0165.html#policy:CMP0165
[4] https://docs.espressif.com/projects/esp-idf/en/v5.4/esp32/api-guides/
build-system.html#overriding-default-build-specifications
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
Aditya Patwardhan
Jiang Jiang Jian
Marek Fiala
Rahul Tank
Alexey Lapshin
Roland Dobai
laokaiyao
Jan Beran
Alexey Gerenkov
Sergei Silnov
Fu Hanxi
Astha Verma
morris
wanckl
Samuel Obuch
harshal.patil
Song Ruo Jing
Alexey Gerenkov
Shu Chen
Mahavir Jain
Marius Vikhammer
Martin Vychodil
luaijun
Frantisek Hrbata