[level-zero] fixed pkg-config generation

[ilya-lavrenov]

Required for #43053 to use vcpkg's level-zero via pkg-config

[MonicaLiu0311]

No pkgconfig file was found in the lib/ folder after installation:

[ilya-lavrenov]

No pkgconfig file was found in the lib/ folder after installation:

Looks like it's expected as per https://github.com/oneapi-src/level-zero/blob/master/source/CMakeLists.txt#L52-L66

Created PR to upstream oneapi-src/level-zero#254 to have pkg-config files on all platforms and update vcpkg patch.

[MonicaLiu0311]

When testing usage, the following error occurs:

error C1083: Cannot open include file: 'level-zero/ze_api.h': No such file or directory [E:\test_usage\cmakeUsage\build\main.vcxproj]

test.cpp

#include <iostream>
#include "level-zero/ze_api.h"
using namespace std;
int main()

{

cout << "Hello CMake." << endl;

return 0;

}

CMakeLists.txt

cmake_minimum_required (VERSION 3.8)
set(CMAKE_TOOLCHAIN_FILE "E:/level-zero/scripts/buildsystems/vcpkg.cmake")
project ("test")
add_library (main "test.cpp")
find_package(PkgConfig REQUIRED)

pkg_check_modules(TEST REQUIRED IMPORTED_TARGET level-zero)

target_include_directories(main PRIVATE ${TEST_INCLUDE_DIRS})

target_link_libraries(main PRIVATE ${TEST_LIBRARIES})

[ilya-lavrenov]

#include "level-zero/ze_api.h"

Include directory is incorrect, must be #include "level_zero/ze_api.h"

I wonder why has vcpkg_fixup_pkgconfig not fixed pkgconfig file for debug build? I had to patch it manually