Update Doxyfile.in to include macros.

Author: Diptorup Deb

docs/Doxyfile.in

@@ -44,7 +44,7 @@ PROJECT_NUMBER         = @CURRENT_RELEASE@
 # for a project that appears at the top of each page and should give viewer a
 # quick idea about the purpose of the project. Keep the description short.
 
-PROJECT_BRIEF          = "A SYCL queue and memory manager for Python modules."
+PROJECT_BRIEF          = "A lightweight C API for SYCL runtime classes"
 
 # With the PROJECT_LOGO tag one can specify a logo or an icon that is included
 # in the documentation. The maximum height of the logo should not exceed 55
@@ -917,9 +917,11 @@ RECURSIVE              = YES
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                = ../dpctl-capi/build
-EXCLUDE                += ../dpctl-capi/install
-EXCLUDE                += ../dpctl-capi/tests
+EXCLUDE                = ../dpctl-capi/include/Support
+EXCLUDE               += ../dpctl-capi/include/Config
+EXCLUDE               += ../dpctl-capi/include/dpctl_vector.h
+EXCLUDE               += ../dpctl-capi/include/dpctl_data_types.h
+EXCLUDE               += ../dpctl-capi/include/dpctl_utils.h
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded
@@ -2161,15 +2163,15 @@ ENABLE_PREPROCESSING   = YES
 # The default value is: NO.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-MACRO_EXPANSION        = NO
+MACRO_EXPANSION        = YES
 
 # If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
 # the macro expansion is limited to the macros specified with the PREDEFINED and
 # EXPAND_AS_DEFINED tags.
 # The default value is: NO.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-EXPAND_ONLY_PREDEF     = NO
+EXPAND_ONLY_PREDEF     = YES
 
 # If the SEARCH_INCLUDES tag is set to YES, the include files in the
 # INCLUDE_PATH will be searched if a #include is found.
@@ -2210,7 +2212,7 @@ PREDEFINED             =
 # definition found in the source code.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-EXPAND_AS_DEFINED      =
+EXPAND_AS_DEFINED      = DPCTL_DECLARE_VECTOR
 
 # If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
 # remove all references to function-like macros that are alone on a line, have