From c86a9e424c5ee48e04e0412e9edf44f758e38fb9 Mon Sep 17 00:00:00 2001
From: Baruch <bmburstein@gmail.com>
Date: Tue, 20 Sep 2022 08:22:11 +0300
Subject: [PATCH] Minimize warnings when not the top-level project (#1124)

Minimize warnings when not the top-level project

Should fix #970 and #764 when trying to add yaml-cpp to other project
---
 CMakeLists.txt | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 638ced9..f2c3c62 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -106,11 +106,15 @@ if (NOT DEFINED CMAKE_CXX_STANDARD)
       CXX_STANDARD 11)
 endif()
 
+if(YAML_CPP_MAIN_PROJECT)
+  target_compile_options(yaml-cpp
+    PRIVATE
+      $<${not-msvc}:-Wall -Wextra -Wshadow -Weffc++ -Wno-long-long>
+      $<${not-msvc}:-pedantic -pedantic-errors>)
+endif()
+
 target_compile_options(yaml-cpp
   PRIVATE
-    $<${not-msvc}:-Wall -Wextra -Wshadow -Weffc++ -Wno-long-long>
-    $<${not-msvc}:-pedantic -pedantic-errors>
-
     $<$<AND:${backport-msvc-runtime},${msvc-rt-mtd-static}>:-MTd>
     $<$<AND:${backport-msvc-runtime},${msvc-rt-mt-static}>:-MT>
     $<$<AND:${backport-msvc-runtime},${msvc-rt-mtd-dll}>:-MDd>