move to new build system

cmake/libraries/curl.cmake

@@ -0,0 +1,51 @@
+if(PROJECT_ENABLE_CURL)
+  if(PROJECT_BUILD)
+    find_package(CURL ${CURL_VERSION} REQUIRED)
+
+    add_definitions(-DPROJECT_ENABLE_CURL)
+
+    include_directories(BEFORE SYSTEM
+      ${CURL_INCLUDE_DIRS}
+    )
+
+    link_libraries(
+      CURL::libcurl
+    )
+  elseif(NOT PROJECT_IS_MINGW OR CMAKE_HOST_WIN32)
+    ExternalProject_Add(curl_project
+      PREFIX external
+      URL ${PROJECT_3RD_PARTY_DIR}/curl-${CURL_VERSION}.tar.gz
+      URL_HASH SHA256=f91249c87f68ea00cf27c44fdfa5a78423e41e71b7d408e5901a9896d905c495
+      LIST_SEPARATOR |
+      CMAKE_ARGS 
+        ${PROJECT_EXTERNAL_CMAKE_FLAGS}
+        -DBUILD_SHARED_LIBS=${PROJECT_BUILD_SHARED_LIBS}
+        -DBUILD_STATIC_LIBS=ON
+        -DBUILD_CURL_EXE=OFF
+        -DBUILD_STATIC_CURL=ON
+        -DBUILD_STATIC_LIBS=ON
+        -DBUILD_TESTING=OFF
+        -DCURL_CA_BUNDLE=./cacert.pem
+        -DCURL_CA_FALLBACK=ON
+        -DCURL_DISABLE_LDAP=ON
+        -DCURL_USE_LIBPSL=OFF
+        -DCURL_USE_LIBSSH2=OFF
+        -DCURL_USE_OPENSSL=${PROJECT_ENABLE_OPENSSL}
+        -DCURL_ZLIB=ON
+        -DENABLE_THREADED_RESOLVER=ON
+        -DOPENSSL_ROOT_DIR=${OPENSSL_ROOT_DIR}
+        -DOPENSSL_USE_STATIC_LIBS=${OPENSSL_USE_STATIC_LIBS}
+        -DUSE_LIBIDN2=OFF
+        -DZLIB_USE_STATIC_LIBS=${ZLIB_USE_STATIC_LIBS}
+    )
+
+    set(PROJECT_DEPENDENCIES
+      ${PROJECT_DEPENDENCIES}
+      curl_project
+    )
+
+    if(PROJECT_ENABLE_OPENSSL)
+      add_dependencies(curl_project openssl_project)
+    endif()
+  endif()
+endif()