ci: add cppflags to CMAKE_(C|CXX)_FLAGS

.github/workflows/create-test-plan.py

@@ -751,10 +751,10 @@ def spec_to_job(spec: JobSpec, key: str, trackmem_symbol_names: bool) -> JobDeta
         ))
     if not build_parallel:
         job.cmake_build_arguments.append("-j1")
-    if job.cflags:
-        job.cmake_arguments.append(f"-DCMAKE_C_FLAGS=\"{my_shlex_join(job.cflags)}\"")
-    if job.cxxflags:
-        job.cmake_arguments.append(f"-DCMAKE_CXX_FLAGS=\"{my_shlex_join(job.cxxflags)}\"")
+    if job.cflags or job.cppflags:
+        job.cmake_arguments.append(f"-DCMAKE_C_FLAGS=\"{my_shlex_join(job.cflags + job.cppflags)}\"")
+    if job.cxxflags or job.cppflags:
+        job.cmake_arguments.append(f"-DCMAKE_CXX_FLAGS=\"{my_shlex_join(job.cxxflags + job.cppflags)}\"")
     if job.ldflags:
         job.cmake_arguments.append(f"-DCMAKE_SHARED_LINKER_FLAGS=\"{my_shlex_join(job.ldflags)}\"")
         job.cmake_arguments.append(f"-DCMAKE_EXE_LINKER_FLAGS=\"{my_shlex_join(job.ldflags)}\"")