Update cmake

TianZerL · Oct 1, 2020 · 0f36eb5 · 0f36eb5
1 parent 38a0ea4
commit 0f36eb5
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Showing 2 changed files with 11 additions and 8 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -45,7 +45,8 @@ if(HAS_FILESYSTEM)
     option(Use_Boost_filesystem "Use filesystem lib from boost instead of STL" OFF)
 else()
     message (
-        STATUS "Failed to complie has_filesystem.cpp, will use boost::filesystem instead of std::filesyste\n"
+        STATUS 
+        "Failed to complie has_filesystem.cpp, will use boost::filesystem instead of std::filesyste\n"
         "Error message:\n"
         ${HAS_FILESYSTEM_MSG}
     )

diff --git a/cmake/Detection.cmake b/cmake/Detection.cmake
@@ -1,19 +1,21 @@
 set(TMP_DIR ${PROJECT_BINARY_DIR}/tmp)
 set(DetectionSample_DIR ${TOP_DIR}/cmake/DetectionSample)
 
-if(NOT EXISTS ${DetectionSample_DIR}/has_filesystem.cpp)
-    file(MAKE_DIRECTORY ${DetectionSample_DIR})
-    file(TOUCH ${DetectionSample_DIR}/has_filesystem.cpp)
-    file(WRITE ${DetectionSample_DIR}/has_filesystem.cpp 
+set(has_filesystem_cpp
 "#include <filesystem>
 
 int main()
 {
-    std::filesystem::path hasFS(\"./\");
-    return 0;
+    std::filesystem::path hasFS(\"./\")\;
+    return 0\;
 }
 ")
 
+if(NOT EXISTS ${DetectionSample_DIR}/has_filesystem.cpp)
+    file(MAKE_DIRECTORY ${DetectionSample_DIR})
+    file(TOUCH ${DetectionSample_DIR}/has_filesystem.cpp)
+    file(WRITE ${DetectionSample_DIR}/has_filesystem.cpp ${has_filesystem_cpp})
+
     # check std::filesystem
     if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 9.0)
         try_compile(HAS_FILESYSTEM
@@ -32,4 +34,4 @@ int main()
         )
     endif()
 
-endif()
+endif()