fixing the compilation issue as c++ linkage specification is added to… [compiler] (#2753)

Author: kranipa

third_party/build_option/crosstool_sycl/cc_toolchain_config.bzl.tpl

@@ -571,7 +571,7 @@ def _impl(ctx):
         flag_sets = [
             flag_set(
                 actions = [
-                    ACTION_NAMES.c_compile,
+                    
                     ACTION_NAMES.cpp_compile,
                     ACTION_NAMES.cpp_link_executable,
                     ACTION_NAMES.cpp_link_dynamic_library,

third_party/build_option/sycl_configure.bzl

@@ -382,6 +382,7 @@ def _sycl_autoconf_imp(repository_ctx):
         additional_linker_flags = []
         builtin_includes = []
 
+        builtin_includes += [find_sycl_root(repository_ctx) + "/include/sycl"]
         builtin_includes += [find_sycl_root(repository_ctx) + "/include"]
         builtin_includes += [find_sycl_root(repository_ctx) + "/lib/clang/12.0.0/include"]
         builtin_includes += [find_sycl_root(repository_ctx) + "/lib/clang/13.0.0/include"]