build: add private link to simdutf static to pkgconfig

CMakeLists.txt

@@ -138,6 +138,9 @@ if (NOT MSVC)
                     )
                     FetchContent_MakeAvailable(simdutf)
                     set(SIMDUTF_LIBRARIES simdutf::simdutf)
+                    if (NOT BUILD_SHARED_LIBS)
+                        set(simdutf_libfile " ${simdutf_BINARY_DIR}/build/libsimdutf.a")
+                    endif()
                 else()
                     message(SEND_ERROR "simdutf not found and the fallback downloader is not set! Install simdutf or use OPENDHT_DOWNLOAD_DEPS option")
                 endif()

opendht.pc.in

@@ -6,7 +6,7 @@ Name: OpenDHT
 Description: C++17 Distributed Hash Table library
 Version: @VERSION@
 Libs: -L${libdir} -lopendht -lfmt
-Libs.private: @http_lib@ -pthread
+Libs.private: @http_lib@ @simdutf_libfile@ -pthread
 Requires: gnutls >= 3.3@jsoncpp_lib@@openssl_lib@
 Requires.private: nettle >= 2.4@argon2_lib@@llhttp_lib@@iouring_lib@@simdutf_lib@
 Cflags: -I${includedir}