[SYCL] Add SYCL pkgconfig configuration (intel#21606)

resolves: intel#21605

Signed-off-by: Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>

Author: dvrogozh

sycl/CMakeLists.txt

@@ -358,6 +358,16 @@ if (NOT WIN32)
       DESTINATION "lib${LLVM_LIBDIR_SUFFIX}/"
       COMPONENT sycl-headers-extras)
   endif()
+
+  configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/pkgconfig/sycl.pc.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/sycl-dpcpp-${DPCPP_VERSION_MAJOR}.pc"
+    @ONLY)
+
+  install(
+    FILES "${CMAKE_CURRENT_BINARY_DIR}/sycl-dpcpp-${DPCPP_VERSION_MAJOR}.pc"
+    DESTINATION "lib${LLVM_LIBDIR_SUFFIX}/pkgconfig"
+    COMPONENT sycl)
 endif()
 
 if(SYCL_ENABLE_XPTI_TRACING AND

sycl/pkgconfig/sycl.pc.in

@@ -0,0 +1,10 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+includedir=${prefix}/@SYCL_INCLUDE_DIR@
+libdir=${prefix}/lib@LLVM_LIBDIR_SUFFIX@
+sycl_version=@SYCL_VERSION_STRING@
+
+Name: sycl-dpcpp-@DPCPP_VERSION_MAJOR@
+Description: DPC++ compiler SYCL runtime library
+Version: @DPCPP_VERSION_MAJOR@.@DPCPP_VERSION_MINOR@.@DPCPP_VERSION_PATCH@
+Libs: -L${libdir} -lsycl
+Cflags: -I${includedir}