Build: document and disentangle dependencies

A long-standing unnecessary mutual dependency caused rebuild
of most tests in the standard target, because the ''valgrind suppression''
executable was classified as »tool«, while also depending on the libraies
with the test code.

admin/scons/Setup.py

@@ -42,7 +42,9 @@ installUIRes = '#$DESTDIR/share/lumiera/'
 installConf  = '#$DESTDIR/lib/lumiera/config'
 
 #-------------------------------------------------------Configuration
+
 buildSetup = Record(locals())
+#  passed to LumieraEnvironment() -> env.path.xxxx
 
 
 

tests/SConscript

@@ -97,7 +97,6 @@ Export('testsuite')
 
 # for creating a Valgrind-Suppression file
 vgsuppression = envSuite.Program('vgsuppression',['tool/vgsuppression.c']+list(testLibs)+list(core_lib))   ## for suppressing false valgrind alarms
-tools  += [vgsuppression]
 
 
 #
@@ -144,7 +143,7 @@ Depends(runTests,vgsuppression)
 #  - 'scons testcode' triggers building of the Testsuite
 #  - 'scons check' triggers building and running
 #
-env.Alias('testcode', testsuite )
+env.Alias('testcode', testsuite + vgsuppression)
 env.Alias('check',    runTests )
 
 # allow tempfiles of test.sh to be cleaned