Dependencies

cmake/cudawrappers-helper.cmake

@@ -1,34 +1,3 @@
-# Copy the contents of the input file to the output file with all the local
-# includes inlined. Local includes are assumed to have ""'s, e.g. having a line
-# '#include "helper.h"` will lead to `helper.h` being inlined.
-function(inline_local_includes input_file output_file)
-  file(READ ${input_file} input_file_contents)
-  set(include_regex "(^|\r?\n)(#include[ \t]*\"([^\"]+)\")")
-  string(REGEX MATCHALL ${include_regex} includes ${input_file_contents})
-  set(include_files "")
-  foreach(include ${includes})
-    # Get the name of the file to include, e.g. 'helper.h'
-    string(REGEX REPLACE ${include_regex} "\\3" include_name ${include})
-    # Get the complete line of the include, e.g.  '#include <helper.h>'
-    string(REGEX REPLACE ${include_regex} "\\2" include_line ${include})
-    file(GLOB_RECURSE INCLUDE_PATHS "${PROJECT_SOURCE_DIR}/*/${include_name}")
-    if(NOT INCLUDE_PATHS STREQUAL "")
-      list(SORT INCLUDE_PATHS ORDER DESCENDING)
-      list(GET INCLUDE_PATHS 0 include_PATH)
-      list(APPEND include_files ${include_PATH})
-      file(READ ${include_PATH} include_contents)
-      string(REPLACE "${include_line}" "${include_contents}"
-                     input_file_contents "${input_file_contents}"
-      )
-    endif()
-  endforeach()
-  file(WRITE ${output_file} "${input_file_contents}")
-  set(include_files
-      ${include_files}
-      PARENT_SCOPE
-  )
-endfunction()
-
 # Make it possible to embed a source file in a library, and link it to a target.
 # E.g. to link <kernel.cu> into target <example_program>, use
 # target_embed_source(example_program, kernel.cu). This will expose symbols
@@ -43,7 +12,17 @@ function(target_embed_source target input_file)
   string(REPLACE "${PROJECT_SOURCE_DIR}" "${CMAKE_BINARY_DIR}"
                  input_file_inlined ${input_file_absolute}
   )
-  inline_local_includes(${input_file_absolute} ${input_file_inlined})
+
+  add_custom_command(
+    OUTPUT ${input_file_inlined}
+    COMMAND
+      ${CMAKE_COMMAND} -Dinput_file=${input_file_absolute}
+      -Doutput_file=${input_file_inlined} -P
+      ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/cudawrappers-inline-local-includes.cmake
+    DEPENDS ${input_file_absolute}
+    COMMENT "Inlining all includes of ${NAME} to generate ${input_file_inlined}"
+  )
+
   # Link the input_file into an object file
   string(REPLACE "${PROJECT_SOURCE_DIR}/" "" input_file_inlined_relative
                  ${input_file_absolute}