move to new build system

cmake/libraries/openssl.cmake

@@ -0,0 +1,56 @@
+if(PROJECT_ENABLE_OPENSSL)
+  if(PROJECT_BUILD)
+    find_package(OpenSSL ${OPENSSL_VERSION} REQUIRED)
+
+    add_definitions(-DPROJECT_ENABLE_OPENSSL)
+
+    include_directories(BEFORE SYSTEM
+      ${OPENSSL_INCLUDE_DIR}
+    )
+
+    link_libraries(
+      OpenSSL::Crypto
+      OpenSSL::SSL
+    )
+  elseif(NOT PROJECT_IS_MINGW OR CMAKE_HOST_WIN32)
+    if(PROJECT_IS_MINGW)
+      set(OPENSSL_COMPILE_TYPE mingw64)
+    elseif(PROJECT_IS_ARM64)
+      set(OPENSSL_COMPILE_TYPE linux-aarch64)
+    else()
+      set(OPENSSL_COMPILE_TYPE linux-x86_64)
+    endif()
+
+    if(PROJECT_IS_MINGW_UNIX)
+      set(OPENSSL_CROSS_PREFIX "--cross-compile-prefix=x86_64-w64-mingw32-")
+    endif()
+
+    if(PROJECT_BUILD_SHARED_LIBS)
+      set(OPENSSL_NO_SHARED shared)
+    else()
+      set(OPENSSL_NO_SHARED no-shared)
+    endif()
+
+    ExternalProject_Add(openssl_project
+      PREFIX external
+      URL ${PROJECT_3RD_PARTY_DIR}/openssl-${OPENSSL_VERSION}.tar.gz
+      URL_HASH SHA256=53e66b043322a606abf0087e7699a0e033a37fa13feb9742df35c3a33b18fb02
+      BUILD_IN_SOURCE 1
+      LIST_SEPARATOR |
+      CONFIGURE_COMMAND ./Configure 
+        ${OPENSSL_COMPILE_TYPE} 
+        ${OPENSSL_CROSS_PREFIX}
+        --prefix=${PROJECT_EXTERNAL_BUILD_ROOT}
+        no-apps
+        no-docs
+        ${OPENSSL_NO_SHARED}
+      BUILD_COMMAND make -j1
+      INSTALL_COMMAND make install
+    )
+
+    set(PROJECT_DEPENDENCIES 
+      ${PROJECT_DEPENDENCIES}
+      openssl_project
+    )
+  endif()
+endif()