diff --git a/CMakeLists.txt b/CMakeLists.txt
index d49db1b82..cbc2b7102 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -476,6 +476,8 @@ ENDIF()
 IF(LIBLZMA_FOUND)
   SET(HAVE_LIBLZMA 1)
   SET(HAVE_LZMA_H 1)
+  LIST(APPEND ADDITIONAL_LIBS LibLZMA::LibLZMA)
+elseif(0)
   CMAKE_PUSH_CHECK_STATE()
   INCLUDE_DIRECTORIES(${LIBLZMA_INCLUDE_DIRS})
   LIST(APPEND ADDITIONAL_LIBS ${LIBLZMA_LIBRARIES})
@@ -556,27 +558,15 @@ ENDIF(LIBB2_FOUND)
 # Find LZ4
 #
 IF(ENABLE_LZ4)
-  IF (LZ4_INCLUDE_DIR)
-    # Already in cache, be silent
-    SET(LZ4_FIND_QUIETLY TRUE)
-  ENDIF (LZ4_INCLUDE_DIR)
-
-  FIND_PATH(LZ4_INCLUDE_DIR lz4.h)
-  FIND_LIBRARY(LZ4_LIBRARY NAMES lz4 liblz4)
-  INCLUDE(FindPackageHandleStandardArgs)
-  FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZ4 DEFAULT_MSG LZ4_LIBRARY LZ4_INCLUDE_DIR)
+  FIND_PACKAGE(lz4 CONFIG REQUIRED)
 ELSE(ENABLE_LZ4)
   SET(LZ4_FOUND FALSE) # Override cached value
 ENDIF(ENABLE_LZ4)
 IF(LZ4_FOUND)
+  SET(HAVE_LZ4HC_H 1)
   SET(HAVE_LIBLZ4 1)
   SET(HAVE_LZ4_H 1)
-  CMAKE_PUSH_CHECK_STATE()	# Save the state of the variables
-  SET(CMAKE_REQUIRED_INCLUDES ${LZ4_INCLUDE_DIR})
-  CHECK_INCLUDE_FILES("lz4hc.h" HAVE_LZ4HC_H)
-  CMAKE_POP_CHECK_STATE()	# Restore the state of the variables
-  INCLUDE_DIRECTORIES(${LZ4_INCLUDE_DIR})
-  LIST(APPEND ADDITIONAL_LIBS ${LZ4_LIBRARY})
+  LIST(APPEND ADDITIONAL_LIBS lz4::lz4)
   #
   # TODO: test for static library.
   #
@@ -587,31 +577,21 @@ MARK_AS_ADVANCED(CLEAR LZ4_LIBRARY)
 # Find Zstd
 #
 IF(ENABLE_ZSTD)
-  IF (ZSTD_INCLUDE_DIR)
-    # Already in cache, be silent
-    SET(ZSTD_FIND_QUIETLY TRUE)
-  ENDIF (ZSTD_INCLUDE_DIR)
-
-  FIND_PATH(ZSTD_INCLUDE_DIR zstd.h)
-  FIND_LIBRARY(ZSTD_LIBRARY NAMES zstd libzstd)
-  INCLUDE(FindPackageHandleStandardArgs)
-  FIND_PACKAGE_HANDLE_STANDARD_ARGS(ZSTD DEFAULT_MSG ZSTD_LIBRARY ZSTD_INCLUDE_DIR)
+  FIND_PACKAGE(zstd CONFIG REQUIRED)
 ELSE(ENABLE_ZSTD)
   SET(ZSTD_FOUND FALSE) # Override cached value
 ENDIF(ENABLE_ZSTD)
-IF(ZSTD_FOUND)
-  SET(HAVE_ZSTD_H 1)
-  INCLUDE_DIRECTORIES(${ZSTD_INCLUDE_DIR})
-  LIST(APPEND ADDITIONAL_LIBS ${ZSTD_LIBRARY})
-  CMAKE_PUSH_CHECK_STATE()
-  SET(CMAKE_REQUIRED_LIBRARIES ${ZSTD_LIBRARY})
-  SET(CMAKE_REQUIRED_INCLUDES ${ZSTD_INCLUDE_DIR})
-  CHECK_FUNCTION_EXISTS(ZSTD_decompressStream HAVE_LIBZSTD)
-  CHECK_FUNCTION_EXISTS(ZSTD_compressStream HAVE_LIBZSTD_COMPRESSOR)
-  #
-  # TODO: test for static library.
-  #
-  CMAKE_POP_CHECK_STATE()
+IF(zstd_FOUND)
+  SET(HAVE_ZSTD_H 1)
+  SET(HAVE_LIBZSTD 1)
+  SET(HAVE_LIBZSTD_COMPRESSOR 1)
+  IF(TARGET zstd::libzstd_shared)
+      LIST(APPEND ADDITIONAL_LIBS zstd::libzstd_shared)
+      SET(CMAKE_REQUIRED_LIBRARIES zstd::libzstd_shared)
+  ELSE(TARGET zstd::libzstd_shared)
+      LIST(APPEND ADDITIONAL_LIBS zstd::libzstd_static)
+      SET(CMAKE_REQUIRED_LIBRARIES zstd::libzstd_static)
+  ENDIF(TARGET zstd::libzstd_shared)
 ENDIF(ZSTD_FOUND)
 MARK_AS_ADVANCED(CLEAR ZSTD_INCLUDE_DIR)
 MARK_AS_ADVANCED(CLEAR ZSTD_LIBRARY)
@@ -783,8 +761,7 @@ IF(ENABLE_OPENSSL AND NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
   FIND_PACKAGE(OpenSSL)
   IF(OPENSSL_FOUND)
     SET(HAVE_LIBCRYPTO 1)
-    INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
-    LIST(APPEND ADDITIONAL_LIBS ${OPENSSL_CRYPTO_LIBRARY})
+    LIST(APPEND ADDITIONAL_LIBS OpenSSL::Crypto)
   ENDIF(OPENSSL_FOUND)
 ELSE()
   SET(OPENSSL_FOUND FALSE) # Override cached value
@@ -903,7 +880,7 @@ main(int argc, char **argv)
         IF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
           INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
 	  LIST(APPEND ADDITIONAL_LIBS ${OPENSSL_LIBRARIES})
-	   LIST(REMOVE_DUPLICATES ADDITIONAL_LIBS)
+	   #LIST(REMOVE_DUPLICATES ADDITIONAL_LIBS)
         ENDIF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
       ENDIF (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
       ENDIF(NOT ARCHIVE_CRYPTO_${ALGORITHM})