diff -rupN --no-dereference qt-creator-opensource-src-5.0.0/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp qt-creator-opensource-src-5.0.0-new/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp

--- qt-creator-opensource-src-5.0.0/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp	2021-08-25 04:13:21.000000000 +0200

+++ qt-creator-opensource-src-5.0.0-new/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp	2021-08-26 13:04:02.744708964 +0200

@@ -676,7 +676,7 @@ QVariant CMakeGeneratorKitAspect::defaul

             if (settings->ninjaPath.filePath().isEmpty()) {

                 Environment env = k->buildEnvironment();

-                return !env.searchInPath("ninja").isEmpty();

+                return !env.searchInPath("ninja-build").isEmpty();

             }

             return true;

         }();