SWDEV-366831 - Compile time flag to switch between #warning and #error message

Using backward compatibility paths will provide an #error message. Compile time option added to enable/disable the #error message.
Disabling the same will provide a #warning message

Change-Id: I45f987b572a306036a72525d2b90d366459117ad

CMakeLists.txt

@@ -431,6 +431,21 @@ configure_file(
     "${PROJECT_SOURCE_DIR}/RPM/rpm_postun" FILE_PERMISSIONS ${INST_SCR_PERM})
 #backward compatibility for file reorganization
 if(FILE_REORG_BACKWARD_COMPATIBILITY)
+# To enable/disable #error in wrapper header files
+   if(NOT DEFINED ROCM_HEADER_WRAPPER_WERROR)
+        if(DEFINED ENV{ROCM_HEADER_WRAPPER_WERROR})
+            set(ROCM_HEADER_WRAPPER_WERROR "$ENV{ROCM_HEADER_WRAPPER_WERROR}"
+                  CACHE STRING "Header wrapper warnings as errors.")
+        else()
+            set(ROCM_HEADER_WRAPPER_WERROR "ON" CACHE STRING "Header wrapper warnings as errors.")
+        endif()
+    endif()
+    if(ROCM_HEADER_WRAPPER_WERROR)
+        set(deprecated_error 1)
+    else()
+        set(deprecated_error 0)
+    endif()
+
     include(rdc-backward-compat)
 endif()
 if(DEFINED ENV{ROCM_LIBPATCH_VERSION})

src/header_template.hpp.in

@@ -22,11 +22,18 @@
 #ifndef @include_guard@
 #define @include_guard@
 
-#if defined(__GNUC__)
+#ifndef ROCM_HEADER_WRAPPER_WERROR
+#define ROCM_HEADER_WRAPPER_WERROR @deprecated_error@
+#endif
+#if ROCM_HEADER_WRAPPER_WERROR  /* ROCM_HEADER_WRAPPER_WERROR 1 */
 #error "This file is deprecated. Use file from include path /opt/rocm-ver/include/ and include as rdc/@header_name@"
+#else  /* ROCM_HEADER_WRAPPER_WERROR */
+#if defined(__GNUC__)
+#warning "This file is deprecated. Use file from include path /opt/rocm-ver/include/ and include as rdc/@header_name@"
 #else
 #pragma message("This file is deprecated. Use file from include path /opt/rocm-ver/include/ and include as rdc/@header_name@")
 #endif
+#endif   /* ROCM_HEADER_WRAPPER_WERROR */
 
 @include_statements@