The new -Dasserts=ON flag breaks standalone roottest #6575
Description
Describe the bug
Our nightly conda builds are affected.
An example of the broken tests is here. The relevant part of the output:
cd /test_job/roottest_build/cling/array
/usr/bin/timeout -s USR2 270s /opt/conda/envs/test-root/bin/root -e '#define NDEBUG' -e '#define ClingWorkAroundMissingDynamicScope' -e '#define ClingWorkAroundUnnamedInclude' -e '#define ClingWorkAroundMissingSmartInclude' -e '#define ClingWorkAroundNoDotInclude' -e '#define ClingWorkAroundMissingAutoLoadingForTemplates' -e '#define ClingWorkAroundAutoParseUsingNamespace' -e '#define ClingWorkAroundTClassUpdateDouble32' -e '#define ClingWorkAroundAutoParseDeclaration' -e '#define ClingWorkAroundMissingUnloading' -e '#define ClingWorkAroundBrokenUnnamedReturn' -e '#define ClingWorkAroundUnnamedDetection2' -e 'gSystem->SetBuildDir("/test_job/roottest_build/cling/array",true)' -e 'gSystem->AddDynamicPath("/test_job/roottest_build/cling/array")' -e 'gROOT->SetMacroPath("/test_job/roottest/cling/array")' -e 'gInterpreter->AddIncludePath("-I/test_job/roottest_build/cling/array")' -e 'gSystem->AddIncludePath("-I/test_job/roottest_build/cling/array")' -q -l -b /test_job/roottest/cling/array/runarray1test.C
-- BEGIN TEST OUTPUT --
ROOT_cli_0:1:9: warning: 'NDEBUG' macro redefined [-Wmacro-redefined]
#define NDEBUG
^
<command line>:1:9: note: previous definition is here
#define NDEBUG 1
^
To Reproduce
To reproduce it's sufficient to compile ROOT with -DCMAKE_BUILD_TYPE=Release -Droottest=OFF and then compile roottest separately against this build of ROOT.
Additional context
As far as I understand, that -e '#define NDEBUG' in the invocation of root.exe used by roottest was not there before, and it's what's causing the issue.
roottest takes the -e '#define ...' arguments from cmake's COMPILE_DEFINITIONS (a quick git grep COMPILE_DEFINITIONS in the roottest repository shows where this happens).
I could not figure out where the other definition of NDEBUG comes from.