[riot-notifications] [RIOT-OS/RIOT] makefiles/renode: dont export EMULATOR* variables (#15483)

Alexandre Abadie notifications at github.com
Fri Nov 20 12:37:26 CET 2020


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### Contribution description

I noticed that EMULATOR* variables were exported although this is not needed. This PR removes the useless `export` from renode.inc.mk and add a static check to make sure they are not exported.

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### Testing procedure

- Green CI (Murdock not needed I think)
- Renode is still called correctly with using the emulate target (I don't have renode installed but the command is correct):

```
$ BUILD_IN_DOCKER=1 make BOARD=cc2538dk -C examples/hello-world all emulate --no-print-directory 
Launching build container using image "riot/riotbuild:latest".
docker run --rm --tty --user $(id -u) -v '/usr/share/zoneinfo/Europe/Paris:/etc/localtime:ro' -v '/work/riot/RIOT:/data/riotbuild/riotbase:delegated' -e 'RIOTBASE=/data/riotbuild/riotbase' -e 'CCACHE_BASEDIR=/data/riotbuild/riotbase' -e 'BUILD_DIR=/data/riotbuild/riotbase/build' -e 'RIOTPROJECT=/data/riotbuild/riotbase' -e 'RIOTCPU=/data/riotbuild/riotbase/cpu' -e 'RIOTBOARD=/data/riotbuild/riotbase/boards' -e 'RIOTMAKE=/data/riotbuild/riotbase/makefiles'      -e 'BOARD=cc2538dk'  -w '/data/riotbuild/riotbase/examples/hello-world/' 'riot/riotbuild:latest' make 'BOARD=cc2538dk'    all
Building application "hello-world" for "cc2538dk" with MCU "cc2538".

"make" -C /data/riotbuild/riotbase/boards/cc2538dk
"make" -C /data/riotbuild/riotbase/core
"make" -C /data/riotbuild/riotbase/cpu/cc2538
"make" -C /data/riotbuild/riotbase/cpu/cc2538/periph
"make" -C /data/riotbuild/riotbase/cpu/cortexm_common
"make" -C /data/riotbuild/riotbase/cpu/cortexm_common/periph
"make" -C /data/riotbuild/riotbase/drivers
"make" -C /data/riotbuild/riotbase/drivers/periph_common
"make" -C /data/riotbuild/riotbase/sys
"make" -C /data/riotbuild/riotbase/sys/auto_init
"make" -C /data/riotbuild/riotbase/sys/newlib_syscalls_default
"make" -C /data/riotbuild/riotbase/sys/pm_layered
"make" -C /data/riotbuild/riotbase/sys/stdio_uart
   text	   data	    bss	    dec	    hex	filename
   8864	    112	   2296	  11272	   2c08	/data/riotbuild/riotbase/examples/hello-world/bin/cc2538dk/hello-world.elf
/work/riot/RIOT/dist/tools/renode/run-renode.sh start
### Starting Renode ###
sh: 1: renode: not found
```

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### Issues/PRs references

Found while reviewing #15459 

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You can view, comment on, or merge this pull request online at:

  https://github.com/RIOT-OS/RIOT/pull/15483

-- Commit Summary --

  * makefiles/renode: don't export EMULATOR variables
  * ci: ensure EMULATOR* variables are not exported

-- File Changes --

    M dist/tools/buildsystem_sanity_check/check.sh (1)
    M makefiles/tools/renode.inc.mk (4)

-- Patch Links --

https://github.com/RIOT-OS/RIOT/pull/15483.patch
https://github.com/RIOT-OS/RIOT/pull/15483.diff

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