Check /etc/os-release instead of apt presence in CMakeLists

CMakeLists.txt

@@ -75,18 +75,15 @@ else()
         # Set DEBUG build options specific for build with ASAN
         set(ASAN_OPTS "-fsanitize=address")
 
-        find_program(APT_FOUND apt-get)
-        if (APT_FOUND AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+        execute_process(COMMAND grep -q "Ubuntu" /etc/ose-release RESULT_VARIABLE IS_UBUNTU)
+        if (IS_UBUNTU AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
             # alloc-dealloc-mismatch generates false positives on boost exceptions
             # This applies only to Ubuntu package:
             # https://github.com/llvm/llvm-project/issues/59432?ysclid=m4y0iqca2c577414782
             # Disable this check on files listed in address_sanitizer_ignore_list.txt if compiler
-            # is Clang and apt-get is installed on system:
-            # FIXME(senichenkov): apt-get is not an ideal check -- maybe it wouldn't be so hard to
-            # ask apt-get if repository is ubuntu-...?
-            message("Running on Ubuntu")
-            message(WARNING "ASAN is broken in Ubuntu package, therefore alloc-dealloc-mismatch")
-            message(WARNING "check will be supressed. Consider using another distro for full ASAN coverage.")
+            # is Clang and host distro is Ubuntu:
+            message(WARNING "Running on Ubuntu. ASAN is broken in Ubuntu package, therefore alloc-dealloc-mismatch check will be supressed.
+            Consider using another distro for full ASAN coverage")
             string(JOIN ";" ASAN_OPTS "-fsanitize-ignorelist=${CMAKE_SOURCE_DIR}/address_sanitizer_ignore_list.txt")
         endif()