fix cmake script

Author: rainyl

packages/opencv_core/src/CMakeLists.txt

@@ -16,10 +16,10 @@ endmacro()
 function(_parse_dartcv_cmake_vars)
   # Generate module config from pubspec.yaml using Dart script
   # The step should not be mendatary for better user experience
-  if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
-    find_program(DART_EXECUTABLE dart.bat)
-  elseif(CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin")
-    find_program(DART_EXECUTABLE dart)
+  if(CMAKE_HOST_SYSTEM_NAME MATCHES "Windows")
+    find_program(DART_EXECUTABLE NAMES "dart.bat" NO_CACHE)
+  elseif(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux|Darwin")
+    find_program(DART_EXECUTABLE NAMES dart NO_CACHE)
   else()
     message(FATAL_ERROR "Current host system ${CMAKE_HOST_SYSTEM_NAME} is not supported!")
   endif()

packages/opencv_dart/src/CMakeLists.txt

@@ -16,10 +16,10 @@ endmacro()
 function(_parse_dartcv_cmake_vars)
   # Generate module config from pubspec.yaml using Dart script
   # The step should not be mendatary for better user experience
-  if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
-    find_program(DART_EXECUTABLE dart.bat)
-  elseif(CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin")
-    find_program(DART_EXECUTABLE dart)
+  if(CMAKE_HOST_SYSTEM_NAME MATCHES "Windows")
+    find_program(DART_EXECUTABLE NAMES "dart.bat" NO_CACHE)
+  elseif(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux|Darwin")
+    find_program(DART_EXECUTABLE NAMES dart NO_CACHE)
   else()
     message(FATAL_ERROR "Current host system ${CMAKE_HOST_SYSTEM_NAME} is not supported!")
   endif()