diff --git a/cmake/BuildJSONCONS.cmake b/cmake/BuildJSONCONS.cmake
index 1f78c5b..1eebbf5 100644
--- a/cmake/BuildJSONCONS.cmake
+++ b/cmake/BuildJSONCONS.cmake
@@ -1,4 +1,4 @@
 
 set(JSONCONS_BUILD_TESTS OFF)
-add_subdirectory(vendor/jsoncons EXCLUDE_FROM_ALL)
+add_subdirectory(${CMAKE_SOURCE_DIR}/vendor/jsoncons ${CMAKE_BINARY_DIR}/jsoncons EXCLUDE_FROM_ALL)
 
diff --git a/cmake/BuildMyCurl.cmake b/cmake/BuildMyCurl.cmake
index a1dd9ef..4c13e5f 100644
--- a/cmake/BuildMyCurl.cmake
+++ b/cmake/BuildMyCurl.cmake
@@ -15,7 +15,7 @@ set(CURL_USE_LIBSSH2 OFF)
 set(BUILD_TESTING OFF)
 set(PICKY_COMPILER OFF)
 
-add_subdirectory(vendor/curl EXCLUDE_FROM_ALL)
+add_subdirectory(${CMAKE_SOURCE_DIR}/vendor/curl EXCLUDE_FROM_ALL)
 if(OS_MACOS)
   target_compile_options(
     libcurl PRIVATE -Wno-error=ambiguous-macro -Wno-error=deprecated-declarations -Wno-error=unreachable-code
diff --git a/cmake/BuildPugiXML.cmake b/cmake/BuildPugiXML.cmake
index 0d936b5..56d98c9 100644
--- a/cmake/BuildPugiXML.cmake
+++ b/cmake/BuildPugiXML.cmake
@@ -10,8 +10,8 @@ ExternalProject_Add(
   pugixml_build
   URL https://github.com/zeux/pugixml/releases/download/v1.13/pugixml-1.13.tar.gz
   URL_MD5 3e4c588e03bdca140844f3c47c1a995e
-  INSTALL_BYPRODUCTS <INSTALL_DIR>/lib/${CMAKE_STATIC_LIBRARY_PREFIX}pugixml${CMAKE_STATIC_LIBRARY_SUFFIX}
   CMAKE_GENERATOR ${CMAKE_GENERATOR}
+  INSTALL_BYPRODUCTS <INSTALL_DIR>/lib/${CMAKE_STATIC_LIBRARY_PREFIX}pugixml${CMAKE_STATIC_LIBRARY_SUFFIX}
   CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR> -DBUILD_SHARED_LIBS=OFF -DPUGIXML_BUILD_TESTS=OFF
              ${PUGIXML_CMAKE_PLATFORM_OPTIONS})
 
diff --git a/src/parsers/CMakeLists.txt b/src/parsers/CMakeLists.txt
index c92a961..a10d559 100644
--- a/src/parsers/CMakeLists.txt
+++ b/src/parsers/CMakeLists.txt
@@ -1 +1,6 @@
 target_sources(${CMAKE_PROJECT_NAME} PRIVATE jsonpointer.cpp jsonpath.cpp regex.cpp xml.cpp errors.cpp)
+
+# on linux, disable conversion errors
+if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+  target_compile_options(${CMAKE_PROJECT_NAME} PRIVATE -Wno-error -Wno-conversion -Wno-shadow -Wno-unused-parameter)
+endif()