From c8d68fbe1e3c1d74c9e3837b2c9a256546fada9d Mon Sep 17 00:00:00 2001
From: Shane Loretz <sloretz@openrobotics.org>
Date: Wed, 9 Oct 2019 11:08:29 -0700
Subject: [PATCH] Fix cuda build downstream (#4)

* Cuda flags should not be exported to downstream targets

Signed-off-by: Shane Loretz <sloretz@osrfoundation.org>

* Fix c linkage with C++ cuda code

Signed-off-by: Shane Loretz <sloretz@osrfoundation.org>
---
 CMakeLists.txt                          |  2 +-
 include/darknet_vendor/darknet_vendor.h | 10 ----------
 2 files changed, 1 insertion(+), 11 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 868da894..d66643c5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -163,7 +163,7 @@ if(DARKNET_CUDA)
   endif()
 
   add_library(darknet SHARED ${darknet_lib_c_sources} ${darknet_lib_cpp_sources} ${darknet_cuda_sources})
-  target_compile_options(darknet INTERFACE
+  target_compile_options(darknet PRIVATE
     $<$<COMPILE_LANGUAGE:CUDA>:${DARKNET_VENDOR_CUDA_FLAGS}>
   )
   target_compile_definitions(darknet PUBLIC GPU=1)
diff --git a/include/darknet_vendor/darknet_vendor.h b/include/darknet_vendor/darknet_vendor.h
index 0543b1dc..862aa895 100644
--- a/include/darknet_vendor/darknet_vendor.h
+++ b/include/darknet_vendor/darknet_vendor.h
@@ -15,18 +15,8 @@
 #ifndef DARKNET_VENDOR__DARKNET_VENDOR_H_
 #define DARKNET_VENDOR__DARKNET_VENDOR_H_
 
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
 #include <darknet.h>
 #include <darknet_vendor/version.h>
 
-#ifdef __cplusplus
-}
-#endif
-
-
 #endif  // DARKNET_VENDOR__DARKNET_VENDOR_H_