build/cmake: support new pkgconfig macros

CMakeLists.txt

@@ -51,6 +51,7 @@ if (NOT OPENDHT_ARGON2)
     if (argon2_FOUND)
         message("-- Found Argon2: " ${argon2_LIBRARY_DIRS} " (found version \"" ${argon2_VERSION} "\")")
         link_directories (${argon2_LIBRARY_DIRS})
+        set (argon2_lib ", libargon2")
     else ()
         message("Argon2 not found, using included version.")
         set(OPENDHT_ARGON2 ON)
@@ -64,16 +65,16 @@ if (Jsoncpp_FOUND)
       src/base64.h
       src/base64.cpp
     )
+    set (jsoncpp_lib ", jsoncpp")
 endif()
 
 if (OPENDHT_HTTP)
     find_package(Restinio REQUIRED)
-    if (Restinio_FOUND)
-        find_library(FMT_LIBRARY fmt)
-        add_library(fmt SHARED IMPORTED)
-        find_library(HTTP_PARSER_LIBRARY http_parser)
-        add_library(http_parser SHARED IMPORTED)
-    endif()
+    find_library(FMT_LIBRARY fmt)
+    add_library(fmt SHARED IMPORTED)
+    find_library(HTTP_PARSER_LIBRARY http_parser)
+    add_library(http_parser SHARED IMPORTED)
+    set (http_parser_lib "-lhttp-parser")
     if (NOT Jsoncpp_FOUND)
         message(SEND_ERROR "Jsoncpp is required for DHT proxy support")
     endif()
@@ -83,6 +84,7 @@ if (OPENDHT_HTTP)
         if (OPENSSL_FOUND)
             message(STATUS "Found OpenSSL ${OPENSSL_VERSION}")
             include_directories(${OPENSSL_INCLUDE_DIRS})
+            set(openssl_lib ", openssl")
         else ()
             message(SEND_ERROR "OpenSSL is required for DHT proxy as specified")
         endif()