Prevent HIP targets from adding -isystem /usr/include, which breaks <cmath>
--- a/hipamd/hip-config-amd.cmake.in
+++ b/hipamd/hip-config-amd.cmake.in
@@ -135,13 +135,11 @@ set_target_properties(hip::host PROPERTIES
 
 set_target_properties(hip::amdhip64 PROPERTIES
   INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
-  INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
 )
 
 if(NOT WIN32)
   set_target_properties(hip::device PROPERTIES
     INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
-    INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
   )
 endif()