[feature] Expand tools.build:compiler_executables to accept other common executables like strip

[ericriff]

What is your suggestion?

Currently this conf only accepts some tools, like the C and C++ compilers. This is usually enough but it doesn't cover all use cases.
For example ffmpeg has to get strip from the env and if it is not set, crosscompilation fails.
https://github.com/conan-io/conan-center-index/blob/master/recipes/ffmpeg/all/conanfile.py#L630

STRIP   ffprobe
strip: Unable to recognise the format of the input file `ffprobe_g'

Granted, I can add and env variable to my profile

tools.build:compiler_executables = {"cpp": "arm-poky-linux-gnueabi-g++", "c": "arm-poky-linux-gnueabi-gcc"}

[buildenv]
ffmpeg/*:STRIP=arm-poky-linux-gnueabi-strip

But this splits the information of the names in two, which is confusing and bugprone. If I ever update my toolchain I have to remember to update the names in multiple places.

I think it would be ideal to be able to set the names of all the core tools provided by the toolchain (cc, cpp, cxx, strip, ar, etc) using tools.build:compiler_executables

Have you read the CONTRIBUTING guide?

• I've read the CONTRIBUTING guide