update most package versions (#190)

* update most package versions

extent build_all.py to inject cmake modules
and use Ninja generator

* fix build problems while build on debian

use SYSTEM include paths (for clang++)
we should not use local installed header!

* fix banchmark example

finalize cmake project code injection as an option

* fix build problems on travis CI

gtest needs c++17

* Update examples/build_all.py

Co-authored-by: Lars Melchior <TheLartians@users.noreply.github.com>

* reindent py script requested by review

indent with only 2 spaces again

* changes according the review

the gtest build error seems to be a make -j cpucount problem

* revert filter too

Co-authored-by: Lars Melchior <TheLartians@users.noreply.github.com>

examples/build_all.py

@@ -1,5 +1,7 @@
 #!/usr/bin/python3
 
+import os
+
 from pathlib import Path
 from subprocess import PIPE, run
 
@@ -9,14 +11,16 @@ examples = [
 
 assert(len(examples) > 0)
 
+
 def runCommand(command):
   print('- %s' % command)
   result = run(command, stdout=PIPE, stderr=PIPE, universal_newlines=True, shell=True)
   if result.returncode != 0:
-    print("error while running '%s':\n" % command, '  ' + str(result.stderr).replace('\n','\n  '))
+    print("error while running '%s':\n" % command, '  ' + str(result.stderr).replace('\n', '\n  '))
     exit(result.returncode)
   return result.stdout
 
+
 print('')
 for example in examples:
   print("running example %s" % example.name)
@@ -24,6 +28,6 @@ for example in examples:
   project = Path(".") / 'build' / example.name
   configure = runCommand('cmake -H%s -B%s' % (example, project))
   print('  ' + '\n  '.join([line for line in configure.split('\n') if 'CPM:' in line]))
-  build = runCommand('cmake --build %s -j4' % (project))
+  build = runCommand('cmake --build %s -- -j%i' % (project, os.cpu_count() / 2))
   print('  ' + '\n  '.join([line for line in build.split('\n') if 'Built target' in line]))
   print('')